./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:57:21,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:57:21,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:57:21,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:57:21,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:57:21,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:57:21,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:57:21,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:57:21,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:57:21,849 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:57:21,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:57:21,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:57:21,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:57:21,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:57:21,853 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:57:21,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:57:21,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:57:21,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:57:21,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:57:21,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:57:21,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:57:21,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:57:21,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:57:21,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:57:21,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:57:21,865 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:57:21,866 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:57:21,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:57:21,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:57:21,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:57:21,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:57:21,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:57:21,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:57:21,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:57:21,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:57:21,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:57:21,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:57:21,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:57:21,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:57:21,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:57:21,890 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:57:21,890 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:57:21,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:57:21,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:57:21,892 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_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 [2024-11-08 16:57:22,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:57:22,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:57:22,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:57:22,379 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:57:22,380 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:57:22,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i Unable to find full path for "g++" [2024-11-08 16:57:25,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:57:25,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:57:25,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-08 16:57:25,572 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/data/cec81be5a/7be0f4c4265f40f8b450e70c3cb5bbd2/FLAG49a55a059 [2024-11-08 16:57:25,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/data/cec81be5a/7be0f4c4265f40f8b450e70c3cb5bbd2 [2024-11-08 16:57:25,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:57:25,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:57:25,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:57:25,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:57:25,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:57:25,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:57:25" (1/1) ... [2024-11-08 16:57:25,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2cc4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:25, skipping insertion in model container [2024-11-08 16:57:25,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:57:25" (1/1) ... [2024-11-08 16:57:25,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:57:26,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:57:26,675 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:57:26,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:57:26,878 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:57:26,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26 WrapperNode [2024-11-08 16:57:26,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:57:26,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:57:26,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:57:26,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:57:26,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:26,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:26,989 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 234 [2024-11-08 16:57:26,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:57:26,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:57:26,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:57:26,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:57:27,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,016 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,057 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 26, 2]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 16, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-08 16:57:27,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:57:27,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:57:27,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:57:27,089 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:57:27,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (1/1) ... [2024-11-08 16:57:27,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:57:27,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:57:27,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:57:27,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:57:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:57:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:57:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:57:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:57:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:57:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:57:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:57:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:57:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:57:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:57:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:57:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:57:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:57:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:57:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:57:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:57:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:57:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:57:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:57:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:57:27,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:57:27,201 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:57:27,462 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:57:27,465 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:57:28,077 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:57:28,077 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:57:28,467 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:57:28,467 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 16:57:28,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:28 BoogieIcfgContainer [2024-11-08 16:57:28,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:57:28,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:57:28,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:57:28,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:57:28,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:57:25" (1/3) ... [2024-11-08 16:57:28,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9cf85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:28, skipping insertion in model container [2024-11-08 16:57:28,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:26" (2/3) ... [2024-11-08 16:57:28,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9cf85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:28, skipping insertion in model container [2024-11-08 16:57:28,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:28" (3/3) ... [2024-11-08 16:57:28,484 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2024-11-08 16:57:28,510 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:57:28,510 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-08 16:57:28,510 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:57:28,598 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:57:28,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 125 transitions, 257 flow [2024-11-08 16:57:28,733 INFO L124 PetriNetUnfolderBase]: 40/179 cut-off events. [2024-11-08 16:57:28,733 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:57:28,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 179 events. 40/179 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 651 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 103. Up to 8 conditions per place. [2024-11-08 16:57:28,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 125 transitions, 257 flow [2024-11-08 16:57:28,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 123 transitions, 253 flow [2024-11-08 16:57:28,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:57:28,792 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@361d5010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:57:28,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 16:57:28,801 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:57:28,801 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-08 16:57:28,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:57:28,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:28,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:57:28,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:57:28,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash 18923105, now seen corresponding path program 1 times [2024-11-08 16:57:28,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:28,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906994378] [2024-11-08 16:57:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:28,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:29,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:29,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906994378] [2024-11-08 16:57:29,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906994378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:29,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:29,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:57:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781718257] [2024-11-08 16:57:29,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:29,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:29,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:29,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:29,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 16:57:29,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:29,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:29,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 16:57:29,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:30,295 INFO L124 PetriNetUnfolderBase]: 867/2699 cut-off events. [2024-11-08 16:57:30,295 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 16:57:30,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4359 conditions, 2699 events. 867/2699 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22053 event pairs, 714 based on Foata normal form. 522/2954 useless extension candidates. Maximal degree in co-relation 2108. Up to 852 conditions per place. [2024-11-08 16:57:30,331 INFO L140 encePairwiseOnDemand]: 99/125 looper letters, 86 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2024-11-08 16:57:30,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 144 transitions, 483 flow [2024-11-08 16:57:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:57:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2024-11-08 16:57:30,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.688 [2024-11-08 16:57:30,357 INFO L175 Difference]: Start difference. First operand has 101 places, 123 transitions, 253 flow. Second operand 4 states and 344 transitions. [2024-11-08 16:57:30,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 144 transitions, 483 flow [2024-11-08 16:57:30,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 144 transitions, 483 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:57:30,371 INFO L231 Difference]: Finished difference. Result has 104 places, 103 transitions, 230 flow [2024-11-08 16:57:30,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=104, PETRI_TRANSITIONS=103} [2024-11-08 16:57:30,383 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2024-11-08 16:57:30,384 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 103 transitions, 230 flow [2024-11-08 16:57:30,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:30,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:30,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:57:30,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:57:30,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:57:30,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash 18923181, now seen corresponding path program 1 times [2024-11-08 16:57:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:30,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727447308] [2024-11-08 16:57:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:30,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727447308] [2024-11-08 16:57:30,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727447308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:30,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:30,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:57:30,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860341708] [2024-11-08 16:57:30,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:30,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:57:30,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:30,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:57:30,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:57:30,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 16:57:30,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 103 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:30,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:30,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 16:57:30,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:31,118 INFO L124 PetriNetUnfolderBase]: 867/2705 cut-off events. [2024-11-08 16:57:31,119 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-08 16:57:31,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4430 conditions, 2705 events. 867/2705 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22138 event pairs, 731 based on Foata normal form. 1/2440 useless extension candidates. Maximal degree in co-relation 2170. Up to 1650 conditions per place. [2024-11-08 16:57:31,138 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 48 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-11-08 16:57:31,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 328 flow [2024-11-08 16:57:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:57:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:57:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-08 16:57:31,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5573333333333333 [2024-11-08 16:57:31,146 INFO L175 Difference]: Start difference. First operand has 104 places, 103 transitions, 230 flow. Second operand 3 states and 209 transitions. [2024-11-08 16:57:31,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 328 flow [2024-11-08 16:57:31,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:57:31,155 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 227 flow [2024-11-08 16:57:31,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2024-11-08 16:57:31,156 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2024-11-08 16:57:31,157 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 227 flow [2024-11-08 16:57:31,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:31,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:31,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 16:57:31,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:57:31,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:57:31,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash 586616899, now seen corresponding path program 1 times [2024-11-08 16:57:31,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:31,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812982407] [2024-11-08 16:57:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:31,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:31,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812982407] [2024-11-08 16:57:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812982407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:31,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:31,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:57:31,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964172256] [2024-11-08 16:57:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:31,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:57:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:31,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:57:31,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:31,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 16:57:31,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:31,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:31,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 16:57:31,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:32,004 INFO L124 PetriNetUnfolderBase]: 867/2697 cut-off events. [2024-11-08 16:57:32,004 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-08 16:57:32,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4402 conditions, 2697 events. 867/2697 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22052 event pairs, 714 based on Foata normal form. 1/2433 useless extension candidates. Maximal degree in co-relation 2218. Up to 1591 conditions per place. [2024-11-08 16:57:32,025 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 51 selfloop transitions, 7 changer transitions 8/118 dead transitions. [2024-11-08 16:57:32,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 118 transitions, 391 flow [2024-11-08 16:57:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:57:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:57:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions. [2024-11-08 16:57:32,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5296 [2024-11-08 16:57:32,029 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 227 flow. Second operand 5 states and 331 transitions. [2024-11-08 16:57:32,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 118 transitions, 391 flow [2024-11-08 16:57:32,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 118 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:57:32,036 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 235 flow [2024-11-08 16:57:32,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2024-11-08 16:57:32,039 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2024-11-08 16:57:32,040 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 235 flow [2024-11-08 16:57:32,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:32,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:32,042 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 16:57:32,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:57:32,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:57:32,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash 586619216, now seen corresponding path program 1 times [2024-11-08 16:57:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383040282] [2024-11-08 16:57:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:32,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:32,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:32,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383040282] [2024-11-08 16:57:32,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383040282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:32,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:32,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:57:32,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954470498] [2024-11-08 16:57:32,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:32,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:57:32,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:32,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:57:32,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:57:32,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2024-11-08 16:57:32,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:32,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:32,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2024-11-08 16:57:32,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:32,645 INFO L124 PetriNetUnfolderBase]: 867/2703 cut-off events. [2024-11-08 16:57:32,645 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-08 16:57:32,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4449 conditions, 2703 events. 867/2703 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 22119 event pairs, 731 based on Foata normal form. 1/2438 useless extension candidates. Maximal degree in co-relation 2151. Up to 1650 conditions per place. [2024-11-08 16:57:32,666 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 47 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-11-08 16:57:32,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 331 flow [2024-11-08 16:57:32,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:57:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:57:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-11-08 16:57:32,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5546666666666666 [2024-11-08 16:57:32,669 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 235 flow. Second operand 3 states and 208 transitions. [2024-11-08 16:57:32,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 331 flow [2024-11-08 16:57:32,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 100 transitions, 317 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:57:32,675 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 223 flow [2024-11-08 16:57:32,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2024-11-08 16:57:32,676 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 0 predicate places. [2024-11-08 16:57:32,677 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 223 flow [2024-11-08 16:57:32,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:32,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:32,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:32,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:57:32,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:57:32,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:32,679 INFO L85 PathProgramCache]: Analyzing trace with hash -336304653, now seen corresponding path program 1 times [2024-11-08 16:57:32,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:32,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84738766] [2024-11-08 16:57:32,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:32,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:32,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84738766] [2024-11-08 16:57:32,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84738766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:32,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:32,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:57:32,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804006816] [2024-11-08 16:57:32,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:32,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:32,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:32,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 125 [2024-11-08 16:57:32,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 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) [2024-11-08 16:57:32,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:32,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 125 [2024-11-08 16:57:32,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:33,459 INFO L124 PetriNetUnfolderBase]: 1004/2890 cut-off events. [2024-11-08 16:57:33,460 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 16:57:33,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4815 conditions, 2890 events. 1004/2890 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 23049 event pairs, 270 based on Foata normal form. 38/2647 useless extension candidates. Maximal degree in co-relation 2427. Up to 1763 conditions per place. [2024-11-08 16:57:33,482 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 85 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2024-11-08 16:57:33,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 133 transitions, 465 flow [2024-11-08 16:57:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:57:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-08 16:57:33,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.574 [2024-11-08 16:57:33,484 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 223 flow. Second operand 4 states and 287 transitions. [2024-11-08 16:57:33,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 133 transitions, 465 flow [2024-11-08 16:57:33,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 133 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:57:33,491 INFO L231 Difference]: Finished difference. Result has 101 places, 98 transitions, 227 flow [2024-11-08 16:57:33,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2024-11-08 16:57:33,495 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, 0 predicate places. [2024-11-08 16:57:33,496 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 227 flow [2024-11-08 16:57:33,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 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) [2024-11-08 16:57:33,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:33,498 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:33,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:57:33,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:57:33,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:33,500 INFO L85 PathProgramCache]: Analyzing trace with hash -705744881, now seen corresponding path program 1 times [2024-11-08 16:57:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256625600] [2024-11-08 16:57:33,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:57:33,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:57:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:57:33,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:57:33,616 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:57:33,617 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-08 16:57:33,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-08 16:57:33,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-08 16:57:33,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-08 16:57:33,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-08 16:57:33,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-08 16:57:33,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-08 16:57:33,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-08 16:57:33,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-08 16:57:33,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-08 16:57:33,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-08 16:57:33,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-08 16:57:33,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-08 16:57:33,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-08 16:57:33,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-08 16:57:33,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-08 16:57:33,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-08 16:57:33,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-08 16:57:33,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-08 16:57:33,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-08 16:57:33,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-08 16:57:33,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:57:33,630 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 16:57:33,633 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:57:33,634 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:57:33,695 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:57:33,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 171 transitions, 358 flow [2024-11-08 16:57:33,747 INFO L124 PetriNetUnfolderBase]: 67/302 cut-off events. [2024-11-08 16:57:33,747 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 16:57:33,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 302 events. 67/302 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1278 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2024-11-08 16:57:33,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 171 transitions, 358 flow [2024-11-08 16:57:33,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 170 transitions, 356 flow [2024-11-08 16:57:33,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:57:33,762 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@361d5010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:57:33,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 16:57:33,765 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:57:33,765 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-08 16:57:33,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:57:33,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:33,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:57:33,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:57:33,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash 24187169, now seen corresponding path program 1 times [2024-11-08 16:57:33,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:33,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669863452] [2024-11-08 16:57:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:33,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:33,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:33,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669863452] [2024-11-08 16:57:33,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669863452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:33,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:33,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:57:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408680168] [2024-11-08 16:57:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:33,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:57:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:57:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:57:33,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 16:57:33,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 170 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:33,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:33,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 16:57:33,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:44,714 INFO L124 PetriNetUnfolderBase]: 30735/65387 cut-off events. [2024-11-08 16:57:44,715 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-08 16:57:44,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111036 conditions, 65387 events. 30735/65387 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 2020. Compared 735469 event pairs, 27200 based on Foata normal form. 15156/74640 useless extension candidates. Maximal degree in co-relation 24592. Up to 23422 conditions per place. [2024-11-08 16:57:45,337 INFO L140 encePairwiseOnDemand]: 135/171 looper letters, 126 selfloop transitions, 5 changer transitions 0/201 dead transitions. [2024-11-08 16:57:45,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 201 transitions, 694 flow [2024-11-08 16:57:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:57:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:57:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2024-11-08 16:57:45,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6900584795321637 [2024-11-08 16:57:45,346 INFO L175 Difference]: Start difference. First operand has 137 places, 170 transitions, 356 flow. Second operand 4 states and 472 transitions. [2024-11-08 16:57:45,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 201 transitions, 694 flow [2024-11-08 16:57:45,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 201 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:57:45,358 INFO L231 Difference]: Finished difference. Result has 140 places, 140 transitions, 313 flow [2024-11-08 16:57:45,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=313, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2024-11-08 16:57:45,362 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-08 16:57:45,364 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 313 flow [2024-11-08 16:57:45,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:45,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:45,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:57:45,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:57:45,367 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:57:45,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 24187245, now seen corresponding path program 1 times [2024-11-08 16:57:45,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:45,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367898151] [2024-11-08 16:57:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:45,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:45,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:45,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367898151] [2024-11-08 16:57:45,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367898151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:45,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:45,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:57:45,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487856021] [2024-11-08 16:57:45,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:45,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:57:45,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:45,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:57:45,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:57:45,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 16:57:45,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:45,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:45,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 16:57:45,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:57:52,927 INFO L124 PetriNetUnfolderBase]: 30750/65720 cut-off events. [2024-11-08 16:57:52,928 INFO L125 PetriNetUnfolderBase]: For 824/824 co-relation queries the response was YES. [2024-11-08 16:57:53,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112460 conditions, 65720 events. 30750/65720 cut-off events. For 824/824 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 741670 event pairs, 27846 based on Foata normal form. 1/59716 useless extension candidates. Maximal degree in co-relation 55200. Up to 45456 conditions per place. [2024-11-08 16:57:53,400 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 68 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-08 16:57:53,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 451 flow [2024-11-08 16:57:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:57:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:57:53,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2024-11-08 16:57:53,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5458089668615984 [2024-11-08 16:57:53,407 INFO L175 Difference]: Start difference. First operand has 140 places, 140 transitions, 313 flow. Second operand 3 states and 280 transitions. [2024-11-08 16:57:53,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 451 flow [2024-11-08 16:57:53,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:57:53,418 INFO L231 Difference]: Finished difference. Result has 139 places, 139 transitions, 310 flow [2024-11-08 16:57:53,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=139, PETRI_TRANSITIONS=139} [2024-11-08 16:57:53,420 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2024-11-08 16:57:53,421 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 139 transitions, 310 flow [2024-11-08 16:57:53,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:53,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:57:53,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 16:57:53,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:57:53,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:57:53,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:53,425 INFO L85 PathProgramCache]: Analyzing trace with hash 749803054, now seen corresponding path program 1 times [2024-11-08 16:57:53,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:53,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763434360] [2024-11-08 16:57:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:53,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:53,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:53,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763434360] [2024-11-08 16:57:53,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763434360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:53,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:53,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:57:53,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090170857] [2024-11-08 16:57:53,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:53,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:57:53,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:53,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:57:53,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:57:53,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 16:57:53,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:57:53,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:57:53,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 16:57:53,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:00,812 INFO L124 PetriNetUnfolderBase]: 30735/65385 cut-off events. [2024-11-08 16:58:00,813 INFO L125 PetriNetUnfolderBase]: For 824/824 co-relation queries the response was YES. [2024-11-08 16:58:00,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111763 conditions, 65385 events. 30735/65385 cut-off events. For 824/824 co-relation queries the response was YES. Maximal size of possible extension queue 2025. Compared 735411 event pairs, 27200 based on Foata normal form. 1/59435 useless extension candidates. Maximal degree in co-relation 56548. Up to 44063 conditions per place. [2024-11-08 16:58:01,285 INFO L140 encePairwiseOnDemand]: 164/171 looper letters, 96 selfloop transitions, 7 changer transitions 0/172 dead transitions. [2024-11-08 16:58:01,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 172 transitions, 582 flow [2024-11-08 16:58:01,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:58:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:58:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2024-11-08 16:58:01,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5298245614035088 [2024-11-08 16:58:01,288 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 310 flow. Second operand 5 states and 453 transitions. [2024-11-08 16:58:01,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 172 transitions, 582 flow [2024-11-08 16:58:01,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 172 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:58:01,296 INFO L231 Difference]: Finished difference. Result has 140 places, 138 transitions, 318 flow [2024-11-08 16:58:01,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=140, PETRI_TRANSITIONS=138} [2024-11-08 16:58:01,297 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-08 16:58:01,298 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 138 transitions, 318 flow [2024-11-08 16:58:01,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:01,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:01,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 16:58:01,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:58:01,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:58:01,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 749805371, now seen corresponding path program 1 times [2024-11-08 16:58:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421626293] [2024-11-08 16:58:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:01,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:01,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421626293] [2024-11-08 16:58:01,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421626293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:01,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:01,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:58:01,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393630038] [2024-11-08 16:58:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:01,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:58:01,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:01,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:58:01,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:58:01,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 171 [2024-11-08 16:58:01,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 138 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:01,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:01,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 171 [2024-11-08 16:58:01,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:09,398 INFO L124 PetriNetUnfolderBase]: 30750/65718 cut-off events. [2024-11-08 16:58:09,398 INFO L125 PetriNetUnfolderBase]: For 2136/2136 co-relation queries the response was YES. [2024-11-08 16:58:09,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112821 conditions, 65718 events. 30750/65718 cut-off events. For 2136/2136 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 741453 event pairs, 27846 based on Foata normal form. 1/59714 useless extension candidates. Maximal degree in co-relation 54117. Up to 45456 conditions per place. [2024-11-08 16:58:09,819 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 67 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-08 16:58:09,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 454 flow [2024-11-08 16:58:09,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:58:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:58:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-08 16:58:09,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-08 16:58:09,821 INFO L175 Difference]: Start difference. First operand has 140 places, 138 transitions, 318 flow. Second operand 3 states and 279 transitions. [2024-11-08 16:58:09,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 454 flow [2024-11-08 16:58:09,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:58:09,850 INFO L231 Difference]: Finished difference. Result has 137 places, 137 transitions, 306 flow [2024-11-08 16:58:09,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2024-11-08 16:58:09,851 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 0 predicate places. [2024-11-08 16:58:09,851 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 306 flow [2024-11-08 16:58:09,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:09,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:09,852 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:09,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:58:09,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:58:09,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:09,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1234165347, now seen corresponding path program 1 times [2024-11-08 16:58:09,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:09,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906933225] [2024-11-08 16:58:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:09,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:09,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:09,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906933225] [2024-11-08 16:58:09,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906933225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:09,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:09,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:58:09,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907937155] [2024-11-08 16:58:09,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:09,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:09,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:09,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171 [2024-11-08 16:58:09,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 137 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:09,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:09,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171 [2024-11-08 16:58:09,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:18,218 INFO L124 PetriNetUnfolderBase]: 37414/76595 cut-off events. [2024-11-08 16:58:18,218 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2024-11-08 16:58:18,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132334 conditions, 76595 events. 37414/76595 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 2087. Compared 843108 event pairs, 16371 based on Foata normal form. 38/68947 useless extension candidates. Maximal degree in co-relation 66882. Up to 54708 conditions per place. [2024-11-08 16:58:18,670 INFO L140 encePairwiseOnDemand]: 164/171 looper letters, 109 selfloop transitions, 3 changer transitions 0/174 dead transitions. [2024-11-08 16:58:18,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 174 transitions, 604 flow [2024-11-08 16:58:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:58:18,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:58:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2024-11-08 16:58:18,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.554093567251462 [2024-11-08 16:58:18,673 INFO L175 Difference]: Start difference. First operand has 137 places, 137 transitions, 306 flow. Second operand 4 states and 379 transitions. [2024-11-08 16:58:18,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 174 transitions, 604 flow [2024-11-08 16:58:18,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 174 transitions, 600 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:58:18,678 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 328 flow [2024-11-08 16:58:18,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=328, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2024-11-08 16:58:18,679 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-08 16:58:18,679 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 328 flow [2024-11-08 16:58:18,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:18,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:18,680 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:18,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:58:18,680 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:58:18,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:18,681 INFO L85 PathProgramCache]: Analyzing trace with hash -996825363, now seen corresponding path program 1 times [2024-11-08 16:58:18,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:18,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400478178] [2024-11-08 16:58:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:18,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:18,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:18,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400478178] [2024-11-08 16:58:18,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400478178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:18,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400372580] [2024-11-08 16:58:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:18,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:18,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:18,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:18,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:58:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:18,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:58:18,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:58:19,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:19,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400372580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:19,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:19,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 16:58:19,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331007615] [2024-11-08 16:58:19,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:19,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:19,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:19,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:19,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:58:19,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171 [2024-11-08 16:58:19,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:19,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:19,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171 [2024-11-08 16:58:19,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:58:26,911 INFO L124 PetriNetUnfolderBase]: 35553/69348 cut-off events. [2024-11-08 16:58:26,911 INFO L125 PetriNetUnfolderBase]: For 3424/3424 co-relation queries the response was YES. [2024-11-08 16:58:27,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125962 conditions, 69348 events. 35553/69348 cut-off events. For 3424/3424 co-relation queries the response was YES. Maximal size of possible extension queue 1979. Compared 738179 event pairs, 1764 based on Foata normal form. 648/64016 useless extension candidates. Maximal degree in co-relation 61239. Up to 40611 conditions per place. [2024-11-08 16:58:27,396 INFO L140 encePairwiseOnDemand]: 166/171 looper letters, 173 selfloop transitions, 6 changer transitions 0/241 dead transitions. [2024-11-08 16:58:27,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 241 transitions, 888 flow [2024-11-08 16:58:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:58:27,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2024-11-08 16:58:27,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5604288499025342 [2024-11-08 16:58:27,400 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 328 flow. Second operand 6 states and 575 transitions. [2024-11-08 16:58:27,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 241 transitions, 888 flow [2024-11-08 16:58:27,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 241 transitions, 886 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:58:27,412 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 334 flow [2024-11-08 16:58:27,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-08 16:58:27,413 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 6 predicate places. [2024-11-08 16:58:27,414 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 334 flow [2024-11-08 16:58:27,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:27,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:58:27,415 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:27,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:27,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbdd402-1ee8-43b3-a9f2-d2347c9e5823/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:27,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 16:58:27,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:27,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1983552022, now seen corresponding path program 1 times [2024-11-08 16:58:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:27,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670548329] [2024-11-08 16:58:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:27,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:58:27,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:27,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670548329] [2024-11-08 16:58:27,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670548329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:27,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:27,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:58:27,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294497446] [2024-11-08 16:58:27,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:27,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:58:27,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:58:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:58:27,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 171 [2024-11-08 16:58:27,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 334 flow. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:58:27,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:58:27,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 171 [2024-11-08 16:58:27,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand