./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ --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 ef62179d17d90afe74c7b4fe8189ca3bb011e55daf3a169b42e4b3589691fc53 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:38:23,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:38:23,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:38:23,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:38:23,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:38:23,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:38:23,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:38:23,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:38:23,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:38:23,730 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:38:23,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:38:23,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:38:23,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:38:23,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:38:23,733 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:38:23,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:38:23,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:38:23,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:38:23,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:38:23,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:38:23,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:38:23,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:38:23,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:38:23,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:38:23,739 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:38:23,740 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:38:23,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:38:23,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:38:23,742 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:38:23,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:38:23,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:38:23,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:38:23,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:38:23,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:38:23,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:38:23,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:38:23,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:38:23,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:38:23,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:38:23,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:38:23,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:38:23,747 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:38:23,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:38:23,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:38:23,748 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_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef62179d17d90afe74c7b4fe8189ca3bb011e55daf3a169b42e4b3589691fc53 [2023-11-23 22:38:24,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:38:24,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:38:24,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:38:24,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:38:24,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:38:24,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-23 22:38:27,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:38:27,448 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:38:27,449 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-23 22:38:27,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/data/3d67360ef/f7264c201fa44a2884002f1e6d6d9f6a/FLAG29efc2763 [2023-11-23 22:38:27,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/data/3d67360ef/f7264c201fa44a2884002f1e6d6d9f6a [2023-11-23 22:38:27,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:38:27,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:38:27,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:38:27,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:38:27,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:38:27,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:27,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c224ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27, skipping insertion in model container [2023-11-23 22:38:27,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:27,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:38:27,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:38:27,810 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:38:27,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:38:27,885 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:38:27,885 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:38:27,895 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:38:27,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27 WrapperNode [2023-11-23 22:38:27,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:38:27,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:38:27,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:38:27,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:38:27,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:27,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:27,986 INFO L138 Inliner]: procedures = 23, calls = 40, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 311 [2023-11-23 22:38:27,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:38:27,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:38:27,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:38:27,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:38:28,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,018 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,044 INFO L189 HeapSplitter]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2] [2023-11-23 22:38:28,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:38:28,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:38:28,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:38:28,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:38:28,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (1/1) ... [2023-11-23 22:38:28,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:38:28,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:28,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:38:28,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:38:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:38:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:38:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:38:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:38:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:38:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:38:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:38:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:38:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:38:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:38:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:38:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:38:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:38:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:38:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:38:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:38:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:38:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:38:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:38:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:38:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:38:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:38:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:38:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:38:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:38:28,203 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:38:28,369 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:38:28,371 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:38:29,064 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:38:29,969 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:38:29,970 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 22:38:29,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:29 BoogieIcfgContainer [2023-11-23 22:38:29,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:38:29,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:38:29,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:38:29,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:38:29,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:38:27" (1/3) ... [2023-11-23 22:38:29,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5b1afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:29, skipping insertion in model container [2023-11-23 22:38:29,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:27" (2/3) ... [2023-11-23 22:38:29,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5b1afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:29, skipping insertion in model container [2023-11-23 22:38:29,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:29" (3/3) ... [2023-11-23 22:38:29,985 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2023-11-23 22:38:29,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:38:30,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:38:30,008 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-23 22:38:30,009 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:38:30,294 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 22:38:30,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 64 transitions, 149 flow [2023-11-23 22:38:30,450 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2023-11-23 22:38:30,450 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 22:38:30,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 61 events. 3/61 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 207 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-23 22:38:30,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 64 transitions, 149 flow [2023-11-23 22:38:30,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 59 transitions, 133 flow [2023-11-23 22:38:30,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:38:30,489 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;@2495d199, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:38:30,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-11-23 22:38:30,500 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:38:30,500 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2023-11-23 22:38:30,500 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:38:30,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:30,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:30,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:30,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:30,508 INFO L85 PathProgramCache]: Analyzing trace with hash 34766477, now seen corresponding path program 1 times [2023-11-23 22:38:30,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:30,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703685472] [2023-11-23 22:38:30,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:30,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:30,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:30,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:30,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703685472] [2023-11-23 22:38:30,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703685472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:30,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:30,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:30,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413846721] [2023-11-23 22:38:30,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:30,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:38:30,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:30,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:38:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:38:30,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:30,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 133 flow. Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2023-11-23 22:38:30,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:30,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:30,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:34,618 INFO L124 PetriNetUnfolderBase]: 7668/10980 cut-off events. [2023-11-23 22:38:34,618 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2023-11-23 22:38:34,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22242 conditions, 10980 events. 7668/10980 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1885. Compared 75943 event pairs, 6850 based on Foata normal form. 0/3497 useless extension candidates. Maximal degree in co-relation 20559. Up to 10860 conditions per place. [2023-11-23 22:38:34,737 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 44 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-11-23 22:38:34,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 197 flow [2023-11-23 22:38:34,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:38:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-23 22:38:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2023-11-23 22:38:34,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2023-11-23 22:38:34,752 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 68 transitions. [2023-11-23 22:38:34,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 68 transitions. [2023-11-23 22:38:34,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:34,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 68 transitions. [2023-11-23 22:38:34,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 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) [2023-11-23 22:38:34,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2023-11-23 22:38:34,763 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2023-11-23 22:38:34,765 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 133 flow. Second operand 2 states and 68 transitions. [2023-11-23 22:38:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 197 flow [2023-11-23 22:38:34,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 188 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:38:34,844 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 100 flow [2023-11-23 22:38:34,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2023-11-23 22:38:34,850 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -16 predicate places. [2023-11-23 22:38:34,850 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 100 flow [2023-11-23 22:38:34,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2023-11-23 22:38:34,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:34,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:34,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:38:34,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:34,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:34,853 INFO L85 PathProgramCache]: Analyzing trace with hash 34766478, now seen corresponding path program 1 times [2023-11-23 22:38:34,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:34,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34926639] [2023-11-23 22:38:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:34,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:34,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:34,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34926639] [2023-11-23 22:38:34,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34926639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:34,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:34,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:34,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385693105] [2023-11-23 22:38:34,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:34,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:34,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:34,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:34,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:34,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:34,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:34,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:34,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:34,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:37,570 INFO L124 PetriNetUnfolderBase]: 6383/9146 cut-off events. [2023-11-23 22:38:37,570 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-23 22:38:37,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18406 conditions, 9146 events. 6383/9146 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 1529. Compared 62027 event pairs, 5657 based on Foata normal form. 0/3016 useless extension candidates. Maximal degree in co-relation 18403. Up to 9046 conditions per place. [2023-11-23 22:38:37,651 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 41 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2023-11-23 22:38:37,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 45 transitions, 180 flow [2023-11-23 22:38:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2023-11-23 22:38:37,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3229166666666667 [2023-11-23 22:38:37,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 62 transitions. [2023-11-23 22:38:37,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 62 transitions. [2023-11-23 22:38:37,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:37,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 62 transitions. [2023-11-23 22:38:37,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-11-23 22:38:37,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:37,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:37,669 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 100 flow. Second operand 3 states and 62 transitions. [2023-11-23 22:38:37,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 45 transitions, 180 flow [2023-11-23 22:38:37,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:38:37,678 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 98 flow [2023-11-23 22:38:37,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2023-11-23 22:38:37,679 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -16 predicate places. [2023-11-23 22:38:37,679 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 98 flow [2023-11-23 22:38:37,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:37,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:37,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:37,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:38:37,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:37,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:37,682 INFO L85 PathProgramCache]: Analyzing trace with hash 34766479, now seen corresponding path program 1 times [2023-11-23 22:38:37,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826143336] [2023-11-23 22:38:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:37,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:37,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:37,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826143336] [2023-11-23 22:38:37,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826143336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:37,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:37,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:37,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095142364] [2023-11-23 22:38:37,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:37,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:37,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:37,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:37,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:37,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:37,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:37,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:37,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:39,892 INFO L124 PetriNetUnfolderBase]: 5216/7480 cut-off events. [2023-11-23 22:38:39,892 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-23 22:38:39,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15056 conditions, 7480 events. 5216/7480 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 49255 event pairs, 4578 based on Foata normal form. 0/2569 useless extension candidates. Maximal degree in co-relation 15052. Up to 7399 conditions per place. [2023-11-23 22:38:39,939 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 39 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-11-23 22:38:39,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 174 flow [2023-11-23 22:38:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2023-11-23 22:38:39,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3125 [2023-11-23 22:38:39,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 60 transitions. [2023-11-23 22:38:39,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 60 transitions. [2023-11-23 22:38:39,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:39,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 60 transitions. [2023-11-23 22:38:39,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-23 22:38:39,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:39,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:39,944 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 98 flow. Second operand 3 states and 60 transitions. [2023-11-23 22:38:39,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 174 flow [2023-11-23 22:38:39,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 43 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:39,946 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 95 flow [2023-11-23 22:38:39,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2023-11-23 22:38:39,947 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2023-11-23 22:38:39,948 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 95 flow [2023-11-23 22:38:39,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:39,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:39,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:39,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:38:39,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:39,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash 34766481, now seen corresponding path program 1 times [2023-11-23 22:38:39,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:39,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946442498] [2023-11-23 22:38:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:39,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:40,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:40,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946442498] [2023-11-23 22:38:40,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946442498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:40,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:40,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:40,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732894766] [2023-11-23 22:38:40,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:40,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:40,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:40,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:40,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:40,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:40,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:40,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:40,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:41,365 INFO L124 PetriNetUnfolderBase]: 4285/6158 cut-off events. [2023-11-23 22:38:41,365 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-23 22:38:41,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12403 conditions, 6158 events. 4285/6158 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 958. Compared 39303 event pairs, 3725 based on Foata normal form. 0/2202 useless extension candidates. Maximal degree in co-relation 12399. Up to 6086 conditions per place. [2023-11-23 22:38:41,407 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 37 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-11-23 22:38:41,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 167 flow [2023-11-23 22:38:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:41,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2023-11-23 22:38:41,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3020833333333333 [2023-11-23 22:38:41,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 58 transitions. [2023-11-23 22:38:41,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 58 transitions. [2023-11-23 22:38:41,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:41,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 58 transitions. [2023-11-23 22:38:41,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-23 22:38:41,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:41,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:41,412 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 95 flow. Second operand 3 states and 58 transitions. [2023-11-23 22:38:41,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 167 flow [2023-11-23 22:38:41,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:41,414 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 92 flow [2023-11-23 22:38:41,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-11-23 22:38:41,416 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -18 predicate places. [2023-11-23 22:38:41,416 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 92 flow [2023-11-23 22:38:41,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:41,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:41,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:41,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:38:41,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:41,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:41,418 INFO L85 PathProgramCache]: Analyzing trace with hash 34766482, now seen corresponding path program 1 times [2023-11-23 22:38:41,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:41,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865508485] [2023-11-23 22:38:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:41,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:41,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:41,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865508485] [2023-11-23 22:38:41,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865508485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:41,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:41,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:41,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480949816] [2023-11-23 22:38:41,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:41,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:41,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:41,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:41,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:41,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:41,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:41,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:41,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:41,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:42,915 INFO L124 PetriNetUnfolderBase]: 3444/4962 cut-off events. [2023-11-23 22:38:42,915 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-23 22:38:42,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 4962 events. 3444/4962 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 30646 event pairs, 2958 based on Foata normal form. 0/1861 useless extension candidates. Maximal degree in co-relation 9998. Up to 4899 conditions per place. [2023-11-23 22:38:42,952 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 35 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2023-11-23 22:38:42,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 160 flow [2023-11-23 22:38:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2023-11-23 22:38:42,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2023-11-23 22:38:42,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 56 transitions. [2023-11-23 22:38:42,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 56 transitions. [2023-11-23 22:38:42,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:42,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 56 transitions. [2023-11-23 22:38:42,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-11-23 22:38:42,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:42,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:42,958 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 92 flow. Second operand 3 states and 56 transitions. [2023-11-23 22:38:42,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 160 flow [2023-11-23 22:38:42,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:42,960 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 89 flow [2023-11-23 22:38:42,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-23 22:38:42,961 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -19 predicate places. [2023-11-23 22:38:42,961 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 89 flow [2023-11-23 22:38:42,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:42,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:42,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:42,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:38:42,963 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:42,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:42,963 INFO L85 PathProgramCache]: Analyzing trace with hash 34766484, now seen corresponding path program 1 times [2023-11-23 22:38:42,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:42,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114149454] [2023-11-23 22:38:42,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:42,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:43,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:43,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114149454] [2023-11-23 22:38:43,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114149454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:43,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:43,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:43,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579044733] [2023-11-23 22:38:43,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:43,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:43,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:43,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:43,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:43,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:43,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:43,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:43,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:43,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:44,152 INFO L124 PetriNetUnfolderBase]: 2671/3854 cut-off events. [2023-11-23 22:38:44,153 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-23 22:38:44,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7771 conditions, 3854 events. 2671/3854 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 22928 event pairs, 2257 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 7767. Up to 3806 conditions per place. [2023-11-23 22:38:44,188 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 33 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2023-11-23 22:38:44,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 153 flow [2023-11-23 22:38:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2023-11-23 22:38:44,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28125 [2023-11-23 22:38:44,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 54 transitions. [2023-11-23 22:38:44,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 54 transitions. [2023-11-23 22:38:44,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:44,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 54 transitions. [2023-11-23 22:38:44,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-11-23 22:38:44,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:44,193 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:44,194 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 89 flow. Second operand 3 states and 54 transitions. [2023-11-23 22:38:44,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 153 flow [2023-11-23 22:38:44,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:44,196 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 86 flow [2023-11-23 22:38:44,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-11-23 22:38:44,198 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -20 predicate places. [2023-11-23 22:38:44,198 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 86 flow [2023-11-23 22:38:44,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:44,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:44,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:44,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:38:44,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:44,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash 34766485, now seen corresponding path program 1 times [2023-11-23 22:38:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797433028] [2023-11-23 22:38:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:44,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:44,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797433028] [2023-11-23 22:38:44,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797433028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:44,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:44,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279617088] [2023-11-23 22:38:44,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:44,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:44,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:44,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:44,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:44,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:44,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:44,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:44,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:44,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:45,062 INFO L124 PetriNetUnfolderBase]: 1996/2886 cut-off events. [2023-11-23 22:38:45,062 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-23 22:38:45,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5822 conditions, 2886 events. 1996/2886 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 16300 event pairs, 1650 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 5818. Up to 2851 conditions per place. [2023-11-23 22:38:45,083 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 31 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2023-11-23 22:38:45,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 146 flow [2023-11-23 22:38:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:45,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2023-11-23 22:38:45,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2708333333333333 [2023-11-23 22:38:45,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 52 transitions. [2023-11-23 22:38:45,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 52 transitions. [2023-11-23 22:38:45,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:45,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 52 transitions. [2023-11-23 22:38:45,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-23 22:38:45,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:45,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:45,087 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 86 flow. Second operand 3 states and 52 transitions. [2023-11-23 22:38:45,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 146 flow [2023-11-23 22:38:45,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 35 transitions, 145 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:45,089 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 83 flow [2023-11-23 22:38:45,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-23 22:38:45,090 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -21 predicate places. [2023-11-23 22:38:45,090 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 83 flow [2023-11-23 22:38:45,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:45,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:45,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:45,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:38:45,091 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:45,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:45,091 INFO L85 PathProgramCache]: Analyzing trace with hash 34766487, now seen corresponding path program 1 times [2023-11-23 22:38:45,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:45,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167871429] [2023-11-23 22:38:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:45,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:45,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167871429] [2023-11-23 22:38:45,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167871429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:45,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:45,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:45,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921249986] [2023-11-23 22:38:45,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:45,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:45,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:45,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:45,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:45,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:45,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:45,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:45,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:45,601 INFO L124 PetriNetUnfolderBase]: 1481/2150 cut-off events. [2023-11-23 22:38:45,601 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 22:38:45,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4343 conditions, 2150 events. 1481/2150 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 11584 event pairs, 1193 based on Foata normal form. 0/994 useless extension candidates. Maximal degree in co-relation 4339. Up to 2122 conditions per place. [2023-11-23 22:38:45,613 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 29 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-11-23 22:38:45,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 33 transitions, 139 flow [2023-11-23 22:38:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2023-11-23 22:38:45,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2604166666666667 [2023-11-23 22:38:45,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 50 transitions. [2023-11-23 22:38:45,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 50 transitions. [2023-11-23 22:38:45,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:45,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 50 transitions. [2023-11-23 22:38:45,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-23 22:38:45,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:45,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:45,618 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 83 flow. Second operand 3 states and 50 transitions. [2023-11-23 22:38:45,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 33 transitions, 139 flow [2023-11-23 22:38:45,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:45,619 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 80 flow [2023-11-23 22:38:45,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2023-11-23 22:38:45,620 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -22 predicate places. [2023-11-23 22:38:45,621 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 80 flow [2023-11-23 22:38:45,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:45,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:45,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:45,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:38:45,622 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:45,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash 34766488, now seen corresponding path program 1 times [2023-11-23 22:38:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517554195] [2023-11-23 22:38:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:45,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:45,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:45,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517554195] [2023-11-23 22:38:45,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517554195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:45,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:45,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:45,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916118873] [2023-11-23 22:38:45,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:45,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:45,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:45,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:45,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:45,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:45,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:45,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:45,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:46,035 INFO L124 PetriNetUnfolderBase]: 1036/1512 cut-off events. [2023-11-23 22:38:46,035 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-23 22:38:46,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3060 conditions, 1512 events. 1036/1512 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 7670 event pairs, 802 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 3056. Up to 1491 conditions per place. [2023-11-23 22:38:46,044 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 27 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-11-23 22:38:46,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 31 transitions, 132 flow [2023-11-23 22:38:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:46,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2023-11-23 22:38:46,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25 [2023-11-23 22:38:46,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 48 transitions. [2023-11-23 22:38:46,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 48 transitions. [2023-11-23 22:38:46,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:46,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 48 transitions. [2023-11-23 22:38:46,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-23 22:38:46,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,049 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 80 flow. Second operand 3 states and 48 transitions. [2023-11-23 22:38:46,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 31 transitions, 132 flow [2023-11-23 22:38:46,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:46,050 INFO L231 Difference]: Finished difference. Result has 43 places, 31 transitions, 77 flow [2023-11-23 22:38:46,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2023-11-23 22:38:46,051 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -23 predicate places. [2023-11-23 22:38:46,051 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 77 flow [2023-11-23 22:38:46,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-23 22:38:46,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:46,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:38:46,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:38:46,053 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:46,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:46,053 INFO L85 PathProgramCache]: Analyzing trace with hash -949248217, now seen corresponding path program 1 times [2023-11-23 22:38:46,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:46,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616895774] [2023-11-23 22:38:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:46,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:46,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:46,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616895774] [2023-11-23 22:38:46,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616895774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:46,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:46,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:46,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512054464] [2023-11-23 22:38:46,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:46,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:46,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:46,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:46,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:46,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:46,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:46,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:46,366 INFO L124 PetriNetUnfolderBase]: 775/1136 cut-off events. [2023-11-23 22:38:46,367 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-23 22:38:46,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 1136 events. 775/1136 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5343 event pairs, 585 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 2302. Up to 1118 conditions per place. [2023-11-23 22:38:46,373 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 25 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2023-11-23 22:38:46,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 125 flow [2023-11-23 22:38:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2023-11-23 22:38:46,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23958333333333334 [2023-11-23 22:38:46,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 46 transitions. [2023-11-23 22:38:46,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 46 transitions. [2023-11-23 22:38:46,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:46,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 46 transitions. [2023-11-23 22:38:46,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-23 22:38:46,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,377 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 77 flow. Second operand 3 states and 46 transitions. [2023-11-23 22:38:46,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 125 flow [2023-11-23 22:38:46,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 29 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:46,379 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 74 flow [2023-11-23 22:38:46,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2023-11-23 22:38:46,380 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -24 predicate places. [2023-11-23 22:38:46,380 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 74 flow [2023-11-23 22:38:46,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:46,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:38:46,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:38:46,381 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:46,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -949248210, now seen corresponding path program 1 times [2023-11-23 22:38:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:46,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676273371] [2023-11-23 22:38:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:46,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:46,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676273371] [2023-11-23 22:38:46,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676273371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:46,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:46,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:46,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900575231] [2023-11-23 22:38:46,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:46,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:46,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:46,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:46,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:46,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:46,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:46,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:46,641 INFO L124 PetriNetUnfolderBase]: 552/814 cut-off events. [2023-11-23 22:38:46,642 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-23 22:38:46,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 814 events. 552/814 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3509 event pairs, 402 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 1656. Up to 799 conditions per place. [2023-11-23 22:38:46,646 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 23 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-11-23 22:38:46,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 118 flow [2023-11-23 22:38:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:46,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2023-11-23 22:38:46,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.22916666666666666 [2023-11-23 22:38:46,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 44 transitions. [2023-11-23 22:38:46,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 44 transitions. [2023-11-23 22:38:46,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:46,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 44 transitions. [2023-11-23 22:38:46,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2023-11-23 22:38:46,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,651 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 74 flow. Second operand 3 states and 44 transitions. [2023-11-23 22:38:46,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 118 flow [2023-11-23 22:38:46,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 27 transitions, 117 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:46,653 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 71 flow [2023-11-23 22:38:46,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2023-11-23 22:38:46,655 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -25 predicate places. [2023-11-23 22:38:46,655 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 71 flow [2023-11-23 22:38:46,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:46,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:38:46,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:38:46,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:46,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash -949248216, now seen corresponding path program 1 times [2023-11-23 22:38:46,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:46,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415029925] [2023-11-23 22:38:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:46,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:46,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:46,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415029925] [2023-11-23 22:38:46,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415029925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:46,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:46,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051478119] [2023-11-23 22:38:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:46,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:46,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:46,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:46,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:46,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:46,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:46,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:46,837 INFO L124 PetriNetUnfolderBase]: 367/546 cut-off events. [2023-11-23 22:38:46,837 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 22:38:46,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 546 events. 367/546 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2075 event pairs, 253 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 1118. Up to 534 conditions per place. [2023-11-23 22:38:46,840 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 21 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2023-11-23 22:38:46,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 25 transitions, 111 flow [2023-11-23 22:38:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2023-11-23 22:38:46,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.21875 [2023-11-23 22:38:46,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 42 transitions. [2023-11-23 22:38:46,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 42 transitions. [2023-11-23 22:38:46,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:46,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 42 transitions. [2023-11-23 22:38:46,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2023-11-23 22:38:46,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,843 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 71 flow. Second operand 3 states and 42 transitions. [2023-11-23 22:38:46,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 25 transitions, 111 flow [2023-11-23 22:38:46,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 25 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:46,844 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 68 flow [2023-11-23 22:38:46,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-11-23 22:38:46,845 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -26 predicate places. [2023-11-23 22:38:46,846 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 68 flow [2023-11-23 22:38:46,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:46,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:38:46,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:38:46,847 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-23 22:38:46,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:46,847 INFO L85 PathProgramCache]: Analyzing trace with hash -949248211, now seen corresponding path program 1 times [2023-11-23 22:38:46,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:46,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911132273] [2023-11-23 22:38:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:46,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:46,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:46,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:46,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911132273] [2023-11-23 22:38:46,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911132273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:46,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:46,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:38:46,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808826535] [2023-11-23 22:38:46,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:46,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:46,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:46,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:46,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:46,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 64 [2023-11-23 22:38:46,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:46,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 64 [2023-11-23 22:38:46,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:46,988 INFO L124 PetriNetUnfolderBase]: 220/332 cut-off events. [2023-11-23 22:38:46,989 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-23 22:38:46,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 332 events. 220/332 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1022 event pairs, 138 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 688. Up to 323 conditions per place. [2023-11-23 22:38:46,990 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-11-23 22:38:46,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 104 flow [2023-11-23 22:38:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2023-11-23 22:38:46,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.20833333333333334 [2023-11-23 22:38:46,992 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 40 transitions. [2023-11-23 22:38:46,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 40 transitions. [2023-11-23 22:38:46,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:46,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 40 transitions. [2023-11-23 22:38:46,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-23 22:38:46,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,994 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-23 22:38:46,994 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 68 flow. Second operand 3 states and 40 transitions. [2023-11-23 22:38:46,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 104 flow [2023-11-23 22:38:46,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 23 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:38:46,995 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-11-23 22:38:46,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-11-23 22:38:46,996 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -27 predicate places. [2023-11-23 22:38:46,996 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-11-23 22:38:46,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-23 22:38:46,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2023-11-23 22:38:47,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2023-11-23 22:38:47,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2023-11-23 22:38:47,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2023-11-23 22:38:47,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2023-11-23 22:38:47,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2023-11-23 22:38:47,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2023-11-23 22:38:47,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2023-11-23 22:38:47,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2023-11-23 22:38:47,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2023-11-23 22:38:47,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2023-11-23 22:38:47,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2023-11-23 22:38:47,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2023-11-23 22:38:47,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2023-11-23 22:38:47,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2023-11-23 22:38:47,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2023-11-23 22:38:47,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2023-11-23 22:38:47,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2023-11-23 22:38:47,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2023-11-23 22:38:47,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2023-11-23 22:38:47,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2023-11-23 22:38:47,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2023-11-23 22:38:47,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2023-11-23 22:38:47,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2023-11-23 22:38:47,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2023-11-23 22:38:47,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2023-11-23 22:38:47,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2023-11-23 22:38:47,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2023-11-23 22:38:47,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2023-11-23 22:38:47,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2023-11-23 22:38:47,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2023-11-23 22:38:47,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2023-11-23 22:38:47,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2023-11-23 22:38:47,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2023-11-23 22:38:47,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2023-11-23 22:38:47,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2023-11-23 22:38:47,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2023-11-23 22:38:47,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2023-11-23 22:38:47,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2023-11-23 22:38:47,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2023-11-23 22:38:47,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2023-11-23 22:38:47,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2023-11-23 22:38:47,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2023-11-23 22:38:47,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2023-11-23 22:38:47,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2023-11-23 22:38:47,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2023-11-23 22:38:47,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2023-11-23 22:38:47,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2023-11-23 22:38:47,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2023-11-23 22:38:47,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2023-11-23 22:38:47,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2023-11-23 22:38:47,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2023-11-23 22:38:47,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2023-11-23 22:38:47,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2023-11-23 22:38:47,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2023-11-23 22:38:47,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2023-11-23 22:38:47,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2023-11-23 22:38:47,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2023-11-23 22:38:47,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2023-11-23 22:38:47,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2023-11-23 22:38:47,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2023-11-23 22:38:47,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2023-11-23 22:38:47,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2023-11-23 22:38:47,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2023-11-23 22:38:47,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2023-11-23 22:38:47,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2023-11-23 22:38:47,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2023-11-23 22:38:47,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2023-11-23 22:38:47,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2023-11-23 22:38:47,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2023-11-23 22:38:47,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2023-11-23 22:38:47,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2023-11-23 22:38:47,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2023-11-23 22:38:47,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2023-11-23 22:38:47,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2023-11-23 22:38:47,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:38:47,014 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:38:47,021 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 22:38:47,021 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:38:47,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:38:47 BasicIcfg [2023-11-23 22:38:47,027 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:38:47,027 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:38:47,027 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:38:47,028 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:38:47,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:29" (3/4) ... [2023-11-23 22:38:47,030 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:38:47,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-23 22:38:47,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-23 22:38:47,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-23 22:38:47,039 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 90 nodes and edges [2023-11-23 22:38:47,040 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-23 22:38:47,040 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 22:38:47,040 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 22:38:47,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:38:47,124 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:38:47,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:38:47,125 INFO L158 Benchmark]: Toolchain (without parser) took 19646.33ms. Allocated memory was 151.0MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 106.8MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 837.8MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,125 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 113.2MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:38:47,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.68ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 95.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.84ms. Allocated memory is still 151.0MB. Free memory was 95.0MB in the beginning and 92.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,126 INFO L158 Benchmark]: Boogie Preprocessor took 110.64ms. Allocated memory is still 151.0MB. Free memory was 92.1MB in the beginning and 89.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,127 INFO L158 Benchmark]: RCFGBuilder took 1871.59ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 89.2MB in the beginning and 132.0MB in the end (delta: -42.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,127 INFO L158 Benchmark]: TraceAbstraction took 17050.44ms. Allocated memory was 190.8MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 130.9MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 814.3MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,128 INFO L158 Benchmark]: Witness Printer took 96.95ms. Allocated memory is still 3.1GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:38:47,130 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36ms. Allocated memory is still 113.2MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.68ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 95.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.84ms. Allocated memory is still 151.0MB. Free memory was 95.0MB in the beginning and 92.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.64ms. Allocated memory is still 151.0MB. Free memory was 92.1MB in the beginning and 89.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1871.59ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 89.2MB in the beginning and 132.0MB in the end (delta: -42.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17050.44ms. Allocated memory was 190.8MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 130.9MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 814.3MB. Max. memory is 16.1GB. * Witness Printer took 96.95ms. Allocated memory is still 3.1GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 113 locations, 75 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 340 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 22:38:47,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3289d9d1-684b-4d67-be6f-b6b2963483df/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE