./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/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_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/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_00f5630c-0ee3-44d2-9d11-f2dc6512b733/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 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:30:36,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:30:37,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:30:37,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:30:37,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:30:37,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:30:37,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:30:37,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:30:37,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:30:37,091 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:30:37,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:30:37,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:30:37,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:30:37,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:30:37,095 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:30:37,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:30:37,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:30:37,097 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:30:37,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:30:37,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:30:37,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:30:37,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:30:37,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:30:37,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:30:37,100 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:30:37,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:30:37,101 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:30:37,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:30:37,102 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:30:37,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:30:37,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:30:37,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:30:37,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:30:37,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:37,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:30:37,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:30:37,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:30:37,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:30:37,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:30:37,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:30:37,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:30:37,107 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:30:37,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:30:37,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:30:37,108 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_00f5630c-0ee3-44d2-9d11-f2dc6512b733/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2023-11-23 22:30:37,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:30:37,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:30:37,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:30:37,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:30:37,429 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:30:37,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-23 22:30:40,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:30:40,958 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:30:40,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-23 22:30:40,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/data/520d6bcff/4f64e667bcbd4b108c35cd28a2c01ed1/FLAGf9801229f [2023-11-23 22:30:41,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/data/520d6bcff/4f64e667bcbd4b108c35cd28a2c01ed1 [2023-11-23 22:30:41,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:30:41,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:30:41,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:41,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:30:41,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:30:41,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc664c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41, skipping insertion in model container [2023-11-23 22:30:41,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:30:41,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:41,434 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:30:41,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:41,564 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:41,564 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:41,574 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:30:41,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41 WrapperNode [2023-11-23 22:30:41,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:41,578 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:41,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:30:41,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:30:41,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,720 INFO L138 Inliner]: procedures = 25, calls = 308, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1691 [2023-11-23 22:30:41,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:41,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:30:41,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:30:41,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:30:41,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,756 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,830 INFO L189 HeapSplitter]: Split 190 memory accesses to 4 slices as follows [2, 2, 2, 184] [2023-11-23 22:30:41,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,926 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:41,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:30:42,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:30:42,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:30:42,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:30:42,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (1/1) ... [2023-11-23 22:30:42,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:42,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:42,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:42,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:30:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:30:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:30:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:30:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:30:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:30:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:30:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:30:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:30:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:30:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:30:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:30:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:30:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:30:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:30:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:30:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:30:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:30:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:30:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:30:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:30:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:30:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:30:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:30:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:30:42,095 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 22:30:42,325 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:30:42,327 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:30:44,385 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:30:47,777 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:30:47,777 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-23 22:30:47,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:47 BoogieIcfgContainer [2023-11-23 22:30:47,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:30:47,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:30:47,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:30:47,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:30:47,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:30:41" (1/3) ... [2023-11-23 22:30:47,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4e107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:30:47, skipping insertion in model container [2023-11-23 22:30:47,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:41" (2/3) ... [2023-11-23 22:30:47,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4e107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:30:47, skipping insertion in model container [2023-11-23 22:30:47,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:47" (3/3) ... [2023-11-23 22:30:47,795 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2023-11-23 22:30:47,808 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:30:47,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:30:47,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-11-23 22:30:47,824 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:30:48,732 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 22:30:48,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 181 transitions, 376 flow [2023-11-23 22:30:48,937 INFO L124 PetriNetUnfolderBase]: 28/179 cut-off events. [2023-11-23 22:30:48,938 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 22:30:48,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 179 events. 28/179 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 815 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 123. Up to 7 conditions per place. [2023-11-23 22:30:48,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 181 transitions, 376 flow [2023-11-23 22:30:48,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 178 transitions, 368 flow [2023-11-23 22:30:48,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:30:48,977 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;@41cbfdf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:30:48,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2023-11-23 22:30:48,981 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:30:48,982 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-23 22:30:48,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:30:48,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:30:48,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-23 22:30:48,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:30:48,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash 5541300, now seen corresponding path program 1 times [2023-11-23 22:30:49,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:49,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940037938] [2023-11-23 22:30:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:49,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:49,415 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 22:30:49,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:49,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940037938] [2023-11-23 22:30:49,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940037938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:49,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:49,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:30:49,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752606666] [2023-11-23 22:30:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:49,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:49,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:49,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:49,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 181 [2023-11-23 22:30:49,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 178 transitions, 368 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 22:30:49,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:30:49,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 181 [2023-11-23 22:30:49,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:30:55,635 INFO L124 PetriNetUnfolderBase]: 5856/9249 cut-off events. [2023-11-23 22:30:55,636 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2023-11-23 22:30:55,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18477 conditions, 9249 events. 5856/9249 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 58859 event pairs, 4560 based on Foata normal form. 330/5517 useless extension candidates. Maximal degree in co-relation 17939. Up to 9082 conditions per place. [2023-11-23 22:30:55,717 INFO L140 encePairwiseOnDemand]: 116/181 looper letters, 138 selfloop transitions, 25 changer transitions 3/178 dead transitions. [2023-11-23 22:30:55,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 178 transitions, 696 flow [2023-11-23 22:30:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 22:30:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2023-11-23 22:30:55,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3701657458563536 [2023-11-23 22:30:55,736 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 268 transitions. [2023-11-23 22:30:55,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 268 transitions. [2023-11-23 22:30:55,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:30:55,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 268 transitions. [2023-11-23 22:30:55,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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 22:30:55,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 22:30:55,757 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 22:30:55,759 INFO L175 Difference]: Start difference. First operand has 157 places, 178 transitions, 368 flow. Second operand 4 states and 268 transitions. [2023-11-23 22:30:55,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 178 transitions, 696 flow [2023-11-23 22:30:55,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 178 transitions, 688 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:30:55,778 INFO L231 Difference]: Finished difference. Result has 139 places, 175 transitions, 533 flow [2023-11-23 22:30:55,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=533, PETRI_PLACES=139, PETRI_TRANSITIONS=175} [2023-11-23 22:30:55,786 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -18 predicate places. [2023-11-23 22:30:55,787 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 175 transitions, 533 flow [2023-11-23 22:30:55,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 22:30:55,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:30:55,787 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-23 22:30:55,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:30:55,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:30:55,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1877717700, now seen corresponding path program 1 times [2023-11-23 22:30:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:55,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401018804] [2023-11-23 22:30:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:55,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:56,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:56,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401018804] [2023-11-23 22:30:56,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401018804] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:30:56,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853752257] [2023-11-23 22:30:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:56,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:56,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:56,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:56,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:30:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:56,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:30:56,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:56,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:56,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:56,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853752257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:56,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:30:56,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-23 22:30:56,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751805181] [2023-11-23 22:30:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:56,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:30:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:56,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:30:56,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:30:56,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 181 [2023-11-23 22:30:56,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 175 transitions, 533 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 22:30:56,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:30:56,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 181 [2023-11-23 22:30:56,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:31:01,806 INFO L124 PetriNetUnfolderBase]: 5856/9238 cut-off events. [2023-11-23 22:31:01,808 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2023-11-23 22:31:01,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18460 conditions, 9238 events. 5856/9238 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 58975 event pairs, 4560 based on Foata normal form. 8/5199 useless extension candidates. Maximal degree in co-relation 18272. Up to 9041 conditions per place. [2023-11-23 22:31:01,885 INFO L140 encePairwiseOnDemand]: 148/181 looper letters, 113 selfloop transitions, 42 changer transitions 0/167 dead transitions. [2023-11-23 22:31:01,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 167 transitions, 811 flow [2023-11-23 22:31:01,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:31:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 259 transitions. [2023-11-23 22:31:01,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23848987108655617 [2023-11-23 22:31:01,899 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 259 transitions. [2023-11-23 22:31:01,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 259 transitions. [2023-11-23 22:31:01,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:31:01,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 259 transitions. [2023-11-23 22:31:01,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 43.166666666666664) internal successors, (259), 6 states have internal predecessors, (259), 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 22:31:01,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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 22:31:01,906 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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 22:31:01,907 INFO L175 Difference]: Start difference. First operand has 139 places, 175 transitions, 533 flow. Second operand 6 states and 259 transitions. [2023-11-23 22:31:01,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 167 transitions, 811 flow [2023-11-23 22:31:01,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 167 transitions, 811 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:31:01,919 INFO L231 Difference]: Finished difference. Result has 133 places, 167 transitions, 585 flow [2023-11-23 22:31:01,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=585, PETRI_PLACES=133, PETRI_TRANSITIONS=167} [2023-11-23 22:31:01,921 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -24 predicate places. [2023-11-23 22:31:01,921 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 167 transitions, 585 flow [2023-11-23 22:31:01,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 22:31:01,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:31:01,922 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2023-11-23 22:31:01,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:02,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:02,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:31:02,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:02,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1920287800, now seen corresponding path program 1 times [2023-11-23 22:31:02,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:02,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128330157] [2023-11-23 22:31:02,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:02,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:02,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128330157] [2023-11-23 22:31:02,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128330157] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:02,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871674824] [2023-11-23 22:31:02,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:02,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:02,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:02,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:02,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:31:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:02,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:31:02,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:02,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871674824] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:03,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:03,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-23 22:31:03,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625500035] [2023-11-23 22:31:03,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:31:03,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:31:03,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:31:03,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 181 [2023-11-23 22:31:03,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 167 transitions, 585 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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 22:31:03,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:31:03,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 181 [2023-11-23 22:31:03,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:31:07,739 INFO L124 PetriNetUnfolderBase]: 5880/9334 cut-off events. [2023-11-23 22:31:07,739 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2023-11-23 22:31:07,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18836 conditions, 9334 events. 5880/9334 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 59977 event pairs, 4560 based on Foata normal form. 24/5316 useless extension candidates. Maximal degree in co-relation 18274. Up to 9076 conditions per place. [2023-11-23 22:31:07,792 INFO L140 encePairwiseOnDemand]: 148/181 looper letters, 130 selfloop transitions, 97 changer transitions 0/239 dead transitions. [2023-11-23 22:31:07,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 239 transitions, 1513 flow [2023-11-23 22:31:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:31:07,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-23 22:31:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 411 transitions. [2023-11-23 22:31:07,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.22707182320441988 [2023-11-23 22:31:07,797 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 411 transitions. [2023-11-23 22:31:07,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 411 transitions. [2023-11-23 22:31:07,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:31:07,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 411 transitions. [2023-11-23 22:31:07,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 41.1) internal successors, (411), 10 states have internal predecessors, (411), 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 22:31:07,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 states have internal predecessors, (1991), 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 22:31:07,805 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 states have internal predecessors, (1991), 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 22:31:07,805 INFO L175 Difference]: Start difference. First operand has 133 places, 167 transitions, 585 flow. Second operand 10 states and 411 transitions. [2023-11-23 22:31:07,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 239 transitions, 1513 flow [2023-11-23 22:31:07,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 239 transitions, 1305 flow, removed 36 selfloop flow, removed 5 redundant places. [2023-11-23 22:31:07,816 INFO L231 Difference]: Finished difference. Result has 140 places, 239 transitions, 1175 flow [2023-11-23 22:31:07,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1175, PETRI_PLACES=140, PETRI_TRANSITIONS=239} [2023-11-23 22:31:07,818 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -17 predicate places. [2023-11-23 22:31:07,818 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 239 transitions, 1175 flow [2023-11-23 22:31:07,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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 22:31:07,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:31:07,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:07,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:08,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:08,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:31:08,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:08,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1552008766, now seen corresponding path program 1 times [2023-11-23 22:31:08,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:08,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431613127] [2023-11-23 22:31:08,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:08,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,297 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 22:31:08,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:08,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431613127] [2023-11-23 22:31:08,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431613127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:08,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:08,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:31:08,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390697298] [2023-11-23 22:31:08,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:08,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:08,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:08,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:08,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 181 [2023-11-23 22:31:08,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 239 transitions, 1175 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 22:31:08,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:31:08,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 181 [2023-11-23 22:31:08,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:31:11,498 INFO L124 PetriNetUnfolderBase]: 5878/9332 cut-off events. [2023-11-23 22:31:11,498 INFO L125 PetriNetUnfolderBase]: For 339/339 co-relation queries the response was YES. [2023-11-23 22:31:11,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18889 conditions, 9332 events. 5878/9332 cut-off events. For 339/339 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 59917 event pairs, 4560 based on Foata normal form. 2/5288 useless extension candidates. Maximal degree in co-relation 18636. Up to 9151 conditions per place. [2023-11-23 22:31:11,547 INFO L140 encePairwiseOnDemand]: 176/181 looper letters, 210 selfloop transitions, 7 changer transitions 0/237 dead transitions. [2023-11-23 22:31:11,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 237 transitions, 1601 flow [2023-11-23 22:31:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:11,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:31:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2023-11-23 22:31:11,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4143646408839779 [2023-11-23 22:31:11,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2023-11-23 22:31:11,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2023-11-23 22:31:11,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:31:11,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2023-11-23 22:31:11,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 22:31:11,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 22:31:11,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 22:31:11,558 INFO L175 Difference]: Start difference. First operand has 140 places, 239 transitions, 1175 flow. Second operand 3 states and 225 transitions. [2023-11-23 22:31:11,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 237 transitions, 1601 flow [2023-11-23 22:31:11,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 237 transitions, 1499 flow, removed 24 selfloop flow, removed 2 redundant places. [2023-11-23 22:31:11,567 INFO L231 Difference]: Finished difference. Result has 140 places, 237 transitions, 1079 flow [2023-11-23 22:31:11,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1079, PETRI_PLACES=140, PETRI_TRANSITIONS=237} [2023-11-23 22:31:11,569 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -17 predicate places. [2023-11-23 22:31:11,569 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 237 transitions, 1079 flow [2023-11-23 22:31:11,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 22:31:11,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:31:11,569 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2023-11-23 22:31:11,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:31:11,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:31:11,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:11,570 INFO L85 PathProgramCache]: Analyzing trace with hash 284750552, now seen corresponding path program 2 times [2023-11-23 22:31:11,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:11,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265801231] [2023-11-23 22:31:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:11,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265801231] [2023-11-23 22:31:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265801231] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774921820] [2023-11-23 22:31:11,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:11,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:11,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:11,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:11,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:31:12,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 22:31:12,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:12,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:31:12,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 22:31:12,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 22:31:12,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774921820] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:12,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:12,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 13 [2023-11-23 22:31:12,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859036948] [2023-11-23 22:31:12,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:12,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 22:31:12,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:12,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 22:31:12,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:31:12,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 181 [2023-11-23 22:31:12,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 237 transitions, 1079 flow. Second operand has 15 states, 15 states have (on average 17.333333333333332) internal successors, (260), 15 states have internal predecessors, (260), 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 22:31:12,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:31:12,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 181 [2023-11-23 22:31:12,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:31:16,128 INFO L124 PetriNetUnfolderBase]: 5886/9344 cut-off events. [2023-11-23 22:31:16,128 INFO L125 PetriNetUnfolderBase]: For 302/302 co-relation queries the response was YES. [2023-11-23 22:31:16,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18872 conditions, 9344 events. 5886/9344 cut-off events. For 302/302 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 59939 event pairs, 4560 based on Foata normal form. 10/5302 useless extension candidates. Maximal degree in co-relation 18770. Up to 9045 conditions per place. [2023-11-23 22:31:16,173 INFO L140 encePairwiseOnDemand]: 148/181 looper letters, 102 selfloop transitions, 133 changer transitions 0/247 dead transitions. [2023-11-23 22:31:16,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 247 transitions, 1582 flow [2023-11-23 22:31:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 22:31:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-23 22:31:16,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 645 transitions. [2023-11-23 22:31:16,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1425414364640884 [2023-11-23 22:31:16,180 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 645 transitions. [2023-11-23 22:31:16,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 645 transitions. [2023-11-23 22:31:16,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:31:16,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 645 transitions. [2023-11-23 22:31:16,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 25.8) internal successors, (645), 25 states have internal predecessors, (645), 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 22:31:16,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 181.0) internal successors, (4706), 26 states have internal predecessors, (4706), 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 22:31:16,194 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 181.0) internal successors, (4706), 26 states have internal predecessors, (4706), 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 22:31:16,195 INFO L175 Difference]: Start difference. First operand has 140 places, 237 transitions, 1079 flow. Second operand 25 states and 645 transitions. [2023-11-23 22:31:16,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 247 transitions, 1582 flow [2023-11-23 22:31:16,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 247 transitions, 1490 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-11-23 22:31:16,205 INFO L231 Difference]: Finished difference. Result has 151 places, 247 transitions, 1286 flow [2023-11-23 22:31:16,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1286, PETRI_PLACES=151, PETRI_TRANSITIONS=247} [2023-11-23 22:31:16,206 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -6 predicate places. [2023-11-23 22:31:16,207 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 247 transitions, 1286 flow [2023-11-23 22:31:16,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.333333333333332) internal successors, (260), 15 states have internal predecessors, (260), 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 22:31:16,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:31:16,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:16,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:16,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:16,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:31:16,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1209039453, now seen corresponding path program 1 times [2023-11-23 22:31:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:16,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819193926] [2023-11-23 22:31:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:16,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:31:16,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:16,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819193926] [2023-11-23 22:31:16,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819193926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:16,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:16,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:31:16,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100844750] [2023-11-23 22:31:16,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:16,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:16,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:16,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 181 [2023-11-23 22:31:16,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 247 transitions, 1286 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 22:31:16,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:31:16,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 181 [2023-11-23 22:31:16,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:31:19,288 INFO L124 PetriNetUnfolderBase]: 5882/9340 cut-off events. [2023-11-23 22:31:19,288 INFO L125 PetriNetUnfolderBase]: For 297/297 co-relation queries the response was YES. [2023-11-23 22:31:19,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18944 conditions, 9340 events. 5882/9340 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 59565 event pairs, 4560 based on Foata normal form. 4/5266 useless extension candidates. Maximal degree in co-relation 18243. Up to 9148 conditions per place. [2023-11-23 22:31:19,317 INFO L140 encePairwiseOnDemand]: 172/181 looper letters, 207 selfloop transitions, 24 changer transitions 0/243 dead transitions. [2023-11-23 22:31:19,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 243 transitions, 1730 flow [2023-11-23 22:31:19,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:31:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-11-23 22:31:19,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.425414364640884 [2023-11-23 22:31:19,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-11-23 22:31:19,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-11-23 22:31:19,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:31:19,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-11-23 22:31:19,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 22:31:19,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 22:31:19,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 22:31:19,332 INFO L175 Difference]: Start difference. First operand has 151 places, 247 transitions, 1286 flow. Second operand 3 states and 231 transitions. [2023-11-23 22:31:19,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 243 transitions, 1730 flow [2023-11-23 22:31:19,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 243 transitions, 1263 flow, removed 28 selfloop flow, removed 12 redundant places. [2023-11-23 22:31:19,345 INFO L231 Difference]: Finished difference. Result has 141 places, 243 transitions, 849 flow [2023-11-23 22:31:19,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=849, PETRI_PLACES=141, PETRI_TRANSITIONS=243} [2023-11-23 22:31:19,349 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -16 predicate places. [2023-11-23 22:31:19,350 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 243 transitions, 849 flow [2023-11-23 22:31:19,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 22:31:19,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:31:19,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:19,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:31:19,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:31:19,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash 227095942, now seen corresponding path program 1 times [2023-11-23 22:31:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242903592] [2023-11-23 22:31:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:31:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:19,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242903592] [2023-11-23 22:31:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242903592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844442300] [2023-11-23 22:31:19,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:19,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:19,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:19,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:19,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:31:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:20,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:31:20,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:31:20,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:20,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:31:20,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844442300] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:20,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:20,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-23 22:31:20,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369566101] [2023-11-23 22:31:20,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:20,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 22:31:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 22:31:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:31:20,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 181 [2023-11-23 22:31:20,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 243 transitions, 849 flow. Second operand has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 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 22:31:20,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:31:20,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 181 [2023-11-23 22:31:20,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:31:24,049 INFO L124 PetriNetUnfolderBase]: 5868/9326 cut-off events. [2023-11-23 22:31:24,049 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-11-23 22:31:24,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18691 conditions, 9326 events. 5868/9326 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 58945 event pairs, 4560 based on Foata normal form. 7/5282 useless extension candidates. Maximal degree in co-relation 18392. Up to 9072 conditions per place. [2023-11-23 22:31:24,075 INFO L140 encePairwiseOnDemand]: 156/181 looper letters, 109 selfloop transitions, 108 changer transitions 0/229 dead transitions. [2023-11-23 22:31:24,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 229 transitions, 1207 flow [2023-11-23 22:31:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 22:31:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-23 22:31:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 377 transitions. [2023-11-23 22:31:24,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.16022099447513813 [2023-11-23 22:31:24,079 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 377 transitions. [2023-11-23 22:31:24,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 377 transitions. [2023-11-23 22:31:24,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:31:24,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 377 transitions. [2023-11-23 22:31:24,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.0) internal successors, (377), 13 states have internal predecessors, (377), 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 22:31:24,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 181.0) internal successors, (2534), 14 states have internal predecessors, (2534), 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 22:31:24,087 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 181.0) internal successors, (2534), 14 states have internal predecessors, (2534), 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 22:31:24,087 INFO L175 Difference]: Start difference. First operand has 141 places, 243 transitions, 849 flow. Second operand 13 states and 377 transitions. [2023-11-23 22:31:24,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 229 transitions, 1207 flow [2023-11-23 22:31:24,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 229 transitions, 1154 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:31:24,097 INFO L231 Difference]: Finished difference. Result has 151 places, 229 transitions, 936 flow [2023-11-23 22:31:24,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=936, PETRI_PLACES=151, PETRI_TRANSITIONS=229} [2023-11-23 22:31:24,102 INFO L281 CegarLoopForPetriNet]: 157 programPoint places, -6 predicate places. [2023-11-23 22:31:24,103 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 229 transitions, 936 flow [2023-11-23 22:31:24,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 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 22:31:24,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:31:24,104 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:24,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:24,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:24,317 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-23 22:31:24,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash -699740815, now seen corresponding path program 1 times [2023-11-23 22:31:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:24,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054573767] [2023-11-23 22:31:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:24,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 22:31:24,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:24,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054573767] [2023-11-23 22:31:24,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054573767] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:24,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54788846] [2023-11-23 22:31:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:24,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:24,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:24,923 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:24,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f5630c-0ee3-44d2-9d11-f2dc6512b733/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:31:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:25,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 22:31:25,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 22:31:25,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 22:31:25,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54788846] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:25,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:25,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-11-23 22:31:25,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002915329] [2023-11-23 22:31:25,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:25,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 22:31:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 22:31:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-23 22:31:26,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 181 [2023-11-23 22:31:26,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 229 transitions, 936 flow. Second operand has 23 states, 23 states have (on average 18.17391304347826) internal successors, (418), 23 states have internal predecessors, (418), 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 22:31:26,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:31:26,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 181 [2023-11-23 22:31:26,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand