./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB --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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:46:21,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:46:21,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:46:21,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:46:21,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:46:21,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:46:21,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:46:21,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:46:21,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:46:21,398 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:46:21,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:46:21,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:46:21,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:46:21,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:46:21,399 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:46:21,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:46:21,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:46:21,400 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:46:21,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:46:21,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:46:21,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:46:21,401 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:46:21,402 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:46:21,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:21,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:21,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:21,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:21,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:46:21,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:21,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:21,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:21,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:21,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:46:21,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:46:21,403 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:46:21,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:46:21,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:46:21,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:46:21,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:46:21,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:46:21,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:46:21,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:46:21,406 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-28 04:46:21,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:46:21,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:46:21,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:46:21,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:46:21,801 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:46:21,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-28 04:46:25,556 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/data/eb422c346/bff72ddbb13846b58ede9910969953e4/FLAGf7f3db288 [2024-11-28 04:46:25,923 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:46:25,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-28 04:46:25,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/data/eb422c346/bff72ddbb13846b58ede9910969953e4/FLAGf7f3db288 [2024-11-28 04:46:25,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/data/eb422c346/bff72ddbb13846b58ede9910969953e4 [2024-11-28 04:46:25,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:46:25,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:46:25,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:25,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:46:25,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:46:25,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:25" (1/1) ... [2024-11-28 04:46:25,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef6f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:25, skipping insertion in model container [2024-11-28 04:46:25,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:25" (1/1) ... [2024-11-28 04:46:26,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:26,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:26,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:46:26,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:26,729 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:46:26,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26 WrapperNode [2024-11-28 04:46:26,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:26,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:26,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:46:26,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:46:26,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,802 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 126 [2024-11-28 04:46:26,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:26,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:46:26,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:46:26,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:46:26,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,836 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-28 04:46:26,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,845 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:46:26,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:46:26,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:46:26,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:46:26,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (1/1) ... [2024-11-28 04:46:26,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:26,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:26,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:46:26,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:46:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:46:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-28 04:46:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:46:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:46:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:46:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:46:26,947 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:46:27,138 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:46:27,139 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:46:27,477 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:46:27,478 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:46:27,737 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:46:27,737 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:46:27,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:27 BoogieIcfgContainer [2024-11-28 04:46:27,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:46:27,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:46:27,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:46:27,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:46:27,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:46:25" (1/3) ... [2024-11-28 04:46:27,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77570a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:27, skipping insertion in model container [2024-11-28 04:46:27,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:26" (2/3) ... [2024-11-28 04:46:27,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77570a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:27, skipping insertion in model container [2024-11-28 04:46:27,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:27" (3/3) ... [2024-11-28 04:46:27,749 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-28 04:46:27,767 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:46:27,769 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i that has 2 procedures, 36 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-28 04:46:27,769 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:46:27,847 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:46:27,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 41 transitions, 86 flow [2024-11-28 04:46:27,962 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-11-28 04:46:27,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:46:27,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 6/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-28 04:46:27,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 41 transitions, 86 flow [2024-11-28 04:46:27,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 40 transitions, 83 flow [2024-11-28 04:46:27,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:46:28,024 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;@71514df4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:46:28,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 04:46:28,049 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:46:28,049 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2024-11-28 04:46:28,050 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:46:28,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:28,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:28,051 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:28,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1348055269, now seen corresponding path program 1 times [2024-11-28 04:46:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:28,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108138770] [2024-11-28 04:46:28,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:28,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:28,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108138770] [2024-11-28 04:46:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108138770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:28,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:28,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:28,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310882948] [2024-11-28 04:46:28,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:28,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:28,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:28,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:28,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:28,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-28 04:46:28,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-11-28 04:46:28,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:28,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-28 04:46:28,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:29,372 INFO L124 PetriNetUnfolderBase]: 363/738 cut-off events. [2024-11-28 04:46:29,373 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:46:29,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 738 events. 363/738 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3602 event pairs, 35 based on Foata normal form. 64/658 useless extension candidates. Maximal degree in co-relation 1367. Up to 352 conditions per place. [2024-11-28 04:46:29,390 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 72 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2024-11-28 04:46:29,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 93 transitions, 351 flow [2024-11-28 04:46:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:46:29,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:46:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-28 04:46:29,409 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7032520325203252 [2024-11-28 04:46:29,411 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 83 flow. Second operand 6 states and 173 transitions. [2024-11-28 04:46:29,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 93 transitions, 351 flow [2024-11-28 04:46:29,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 93 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:46:29,422 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 148 flow [2024-11-28 04:46:29,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-11-28 04:46:29,430 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2024-11-28 04:46:29,431 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 148 flow [2024-11-28 04:46:29,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-11-28 04:46:29,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:29,431 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:29,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:46:29,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:29,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:29,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1598996808, now seen corresponding path program 1 times [2024-11-28 04:46:29,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:29,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964899420] [2024-11-28 04:46:29,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:29,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:29,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:29,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964899420] [2024-11-28 04:46:29,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964899420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:29,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:29,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:29,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133715864] [2024-11-28 04:46:29,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:29,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:29,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:29,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:29,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:29,742 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-28 04:46:29,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-28 04:46:29,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:29,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-28 04:46:29,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:30,192 INFO L124 PetriNetUnfolderBase]: 298/648 cut-off events. [2024-11-28 04:46:30,192 INFO L125 PetriNetUnfolderBase]: For 135/139 co-relation queries the response was YES. [2024-11-28 04:46:30,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 648 events. 298/648 cut-off events. For 135/139 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3156 event pairs, 26 based on Foata normal form. 22/593 useless extension candidates. Maximal degree in co-relation 1386. Up to 378 conditions per place. [2024-11-28 04:46:30,206 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 66 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-28 04:46:30,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 90 transitions, 389 flow [2024-11-28 04:46:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:46:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:46:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-28 04:46:30,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6707317073170732 [2024-11-28 04:46:30,209 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 148 flow. Second operand 6 states and 165 transitions. [2024-11-28 04:46:30,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 90 transitions, 389 flow [2024-11-28 04:46:30,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 90 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:30,217 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 192 flow [2024-11-28 04:46:30,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-11-28 04:46:30,219 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-28 04:46:30,219 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 192 flow [2024-11-28 04:46:30,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-28 04:46:30,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:30,220 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:30,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:46:30,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:30,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:30,221 INFO L85 PathProgramCache]: Analyzing trace with hash 876476428, now seen corresponding path program 1 times [2024-11-28 04:46:30,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:30,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359155907] [2024-11-28 04:46:30,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:30,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:30,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:30,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359155907] [2024-11-28 04:46:30,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359155907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:30,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:30,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:30,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748346815] [2024-11-28 04:46:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:30,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:30,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:30,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:30,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:30,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-28 04:46:30,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-28 04:46:30,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:30,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-28 04:46:30,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:30,958 INFO L124 PetriNetUnfolderBase]: 467/992 cut-off events. [2024-11-28 04:46:30,958 INFO L125 PetriNetUnfolderBase]: For 570/585 co-relation queries the response was YES. [2024-11-28 04:46:30,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 992 events. 467/992 cut-off events. For 570/585 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5319 event pairs, 95 based on Foata normal form. 32/945 useless extension candidates. Maximal degree in co-relation 2372. Up to 491 conditions per place. [2024-11-28 04:46:30,967 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 93 selfloop transitions, 20 changer transitions 0/124 dead transitions. [2024-11-28 04:46:30,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 124 transitions, 745 flow [2024-11-28 04:46:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:46:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:46:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-28 04:46:30,970 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6300813008130082 [2024-11-28 04:46:30,973 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 192 flow. Second operand 6 states and 155 transitions. [2024-11-28 04:46:30,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 124 transitions, 745 flow [2024-11-28 04:46:30,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 124 transitions, 719 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-28 04:46:30,984 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 351 flow [2024-11-28 04:46:30,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-11-28 04:46:30,985 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-28 04:46:30,985 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 351 flow [2024-11-28 04:46:30,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-28 04:46:30,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:30,986 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:30,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:46:30,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:30,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1400965925, now seen corresponding path program 1 times [2024-11-28 04:46:30,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:30,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117415692] [2024-11-28 04:46:30,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:30,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:31,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:31,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117415692] [2024-11-28 04:46:31,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117415692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:31,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213249798] [2024-11-28 04:46:31,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:31,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:46:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:31,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:46:31,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:46:31,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-28 04:46:31,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:31,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:31,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-28 04:46:31,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:31,467 INFO L124 PetriNetUnfolderBase]: 335/756 cut-off events. [2024-11-28 04:46:31,467 INFO L125 PetriNetUnfolderBase]: For 760/799 co-relation queries the response was YES. [2024-11-28 04:46:31,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 756 events. 335/756 cut-off events. For 760/799 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3731 event pairs, 111 based on Foata normal form. 35/765 useless extension candidates. Maximal degree in co-relation 2099. Up to 454 conditions per place. [2024-11-28 04:46:31,475 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 57 selfloop transitions, 11 changer transitions 3/86 dead transitions. [2024-11-28 04:46:31,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 555 flow [2024-11-28 04:46:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:46:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-28 04:46:31,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-28 04:46:31,477 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 351 flow. Second operand 5 states and 130 transitions. [2024-11-28 04:46:31,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 555 flow [2024-11-28 04:46:31,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 533 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-28 04:46:31,487 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 365 flow [2024-11-28 04:46:31,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-28 04:46:31,488 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2024-11-28 04:46:31,488 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 365 flow [2024-11-28 04:46:31,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:31,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:31,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:31,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:46:31,489 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:31,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:31,490 INFO L85 PathProgramCache]: Analyzing trace with hash 962360062, now seen corresponding path program 1 times [2024-11-28 04:46:31,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:31,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652974448] [2024-11-28 04:46:31,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:31,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:31,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:31,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652974448] [2024-11-28 04:46:31,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652974448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:31,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:31,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:31,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610012189] [2024-11-28 04:46:31,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:31,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:46:31,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:31,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:46:31,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:46:31,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-28 04:46:31,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-28 04:46:31,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:31,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-28 04:46:31,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:31,916 INFO L124 PetriNetUnfolderBase]: 398/863 cut-off events. [2024-11-28 04:46:31,917 INFO L125 PetriNetUnfolderBase]: For 1326/1408 co-relation queries the response was YES. [2024-11-28 04:46:31,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 863 events. 398/863 cut-off events. For 1326/1408 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4472 event pairs, 35 based on Foata normal form. 80/911 useless extension candidates. Maximal degree in co-relation 2527. Up to 559 conditions per place. [2024-11-28 04:46:31,925 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 84 selfloop transitions, 3 changer transitions 1/101 dead transitions. [2024-11-28 04:46:31,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 717 flow [2024-11-28 04:46:31,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:46:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:46:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-28 04:46:31,927 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676829268292683 [2024-11-28 04:46:31,927 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 365 flow. Second operand 4 states and 111 transitions. [2024-11-28 04:46:31,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 717 flow [2024-11-28 04:46:31,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 715 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:31,936 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 383 flow [2024-11-28 04:46:31,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2024-11-28 04:46:31,939 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-28 04:46:31,941 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 383 flow [2024-11-28 04:46:31,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-28 04:46:31,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:31,942 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:31,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:46:31,942 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:31,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:31,943 INFO L85 PathProgramCache]: Analyzing trace with hash 550543689, now seen corresponding path program 1 times [2024-11-28 04:46:31,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:31,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68549589] [2024-11-28 04:46:31,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:31,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:32,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:32,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68549589] [2024-11-28 04:46:32,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68549589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:32,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:32,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:32,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320787393] [2024-11-28 04:46:32,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:32,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:32,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:32,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:32,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:32,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-28 04:46:32,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-28 04:46:32,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:32,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-28 04:46:32,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:32,714 INFO L124 PetriNetUnfolderBase]: 367/867 cut-off events. [2024-11-28 04:46:32,714 INFO L125 PetriNetUnfolderBase]: For 1184/1202 co-relation queries the response was YES. [2024-11-28 04:46:32,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 867 events. 367/867 cut-off events. For 1184/1202 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4663 event pairs, 177 based on Foata normal form. 7/869 useless extension candidates. Maximal degree in co-relation 2569. Up to 609 conditions per place. [2024-11-28 04:46:32,725 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 57 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-11-28 04:46:32,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 572 flow [2024-11-28 04:46:32,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:46:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-11-28 04:46:32,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2024-11-28 04:46:32,727 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 383 flow. Second operand 5 states and 117 transitions. [2024-11-28 04:46:32,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 572 flow [2024-11-28 04:46:32,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 559 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 04:46:32,738 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 400 flow [2024-11-28 04:46:32,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2024-11-28 04:46:32,739 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 35 predicate places. [2024-11-28 04:46:32,739 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 400 flow [2024-11-28 04:46:32,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-28 04:46:32,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:32,739 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:32,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:46:32,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:32,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:32,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1807706259, now seen corresponding path program 2 times [2024-11-28 04:46:32,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:32,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343676377] [2024-11-28 04:46:32,741 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:46:32,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:32,776 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:46:32,776 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:46:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:33,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:33,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343676377] [2024-11-28 04:46:33,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343676377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:33,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:33,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:46:33,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263954409] [2024-11-28 04:46:33,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:33,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:46:33,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:33,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:46:33,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:46:33,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-28 04:46:33,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 400 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-11-28 04:46:33,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:33,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-28 04:46:33,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:33,829 INFO L124 PetriNetUnfolderBase]: 400/942 cut-off events. [2024-11-28 04:46:33,829 INFO L125 PetriNetUnfolderBase]: For 1607/1625 co-relation queries the response was YES. [2024-11-28 04:46:33,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2974 conditions, 942 events. 400/942 cut-off events. For 1607/1625 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5175 event pairs, 182 based on Foata normal form. 13/951 useless extension candidates. Maximal degree in co-relation 2943. Up to 630 conditions per place. [2024-11-28 04:46:33,838 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 68 selfloop transitions, 20 changer transitions 1/103 dead transitions. [2024-11-28 04:46:33,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 819 flow [2024-11-28 04:46:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:46:33,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:46:33,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-28 04:46:33,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5073170731707317 [2024-11-28 04:46:33,841 INFO L175 Difference]: Start difference. First operand has 73 places, 66 transitions, 400 flow. Second operand 10 states and 208 transitions. [2024-11-28 04:46:33,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 819 flow [2024-11-28 04:46:33,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 787 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-28 04:46:33,858 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 578 flow [2024-11-28 04:46:33,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=578, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-11-28 04:46:33,859 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 46 predicate places. [2024-11-28 04:46:33,859 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 578 flow [2024-11-28 04:46:33,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-11-28 04:46:33,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:33,860 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:33,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:46:33,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:33,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:33,861 INFO L85 PathProgramCache]: Analyzing trace with hash 903761845, now seen corresponding path program 3 times [2024-11-28 04:46:33,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:33,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407703789] [2024-11-28 04:46:33,861 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:46:33,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:33,893 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:46:33,893 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:46:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:34,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:34,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407703789] [2024-11-28 04:46:34,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407703789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:34,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:34,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:46:34,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585153232] [2024-11-28 04:46:34,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:34,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:46:34,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:34,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:46:34,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:46:34,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-28 04:46:34,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 578 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-11-28 04:46:34,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:34,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-28 04:46:34,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:34,827 INFO L124 PetriNetUnfolderBase]: 393/935 cut-off events. [2024-11-28 04:46:34,828 INFO L125 PetriNetUnfolderBase]: For 2076/2093 co-relation queries the response was YES. [2024-11-28 04:46:34,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3139 conditions, 935 events. 393/935 cut-off events. For 2076/2093 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4825 event pairs, 154 based on Foata normal form. 12/944 useless extension candidates. Maximal degree in co-relation 3103. Up to 605 conditions per place. [2024-11-28 04:46:34,837 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 71 selfloop transitions, 23 changer transitions 1/109 dead transitions. [2024-11-28 04:46:34,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 959 flow [2024-11-28 04:46:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:46:34,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:46:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-11-28 04:46:34,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-11-28 04:46:34,842 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 578 flow. Second operand 8 states and 176 transitions. [2024-11-28 04:46:34,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 959 flow [2024-11-28 04:46:34,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 913 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 04:46:34,857 INFO L231 Difference]: Finished difference. Result has 91 places, 85 transitions, 697 flow [2024-11-28 04:46:34,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=91, PETRI_TRANSITIONS=85} [2024-11-28 04:46:34,858 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2024-11-28 04:46:34,862 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 85 transitions, 697 flow [2024-11-28 04:46:34,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-11-28 04:46:34,863 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:34,863 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:34,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:46:34,863 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:34,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:34,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2018134911, now seen corresponding path program 1 times [2024-11-28 04:46:34,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:34,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713837917] [2024-11-28 04:46:34,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:34,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:35,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:35,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713837917] [2024-11-28 04:46:35,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713837917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:35,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195839578] [2024-11-28 04:46:35,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:35,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:35,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:35,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:35,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:46:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:35,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:46:35,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:35,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:46:35,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-28 04:46:35,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-28 04:46:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:35,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:36,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:36,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195839578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:36,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:36,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2024-11-28 04:46:36,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082681022] [2024-11-28 04:46:36,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:36,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:46:36,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:36,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:46:36,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:46:36,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-28 04:46:36,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 85 transitions, 697 flow. Second operand has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 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) [2024-11-28 04:46:36,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:36,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-28 04:46:36,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:38,817 INFO L124 PetriNetUnfolderBase]: 1416/2974 cut-off events. [2024-11-28 04:46:38,818 INFO L125 PetriNetUnfolderBase]: For 5999/6214 co-relation queries the response was YES. [2024-11-28 04:46:38,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 2974 events. 1416/2974 cut-off events. For 5999/6214 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17636 event pairs, 108 based on Foata normal form. 198/3154 useless extension candidates. Maximal degree in co-relation 9733. Up to 576 conditions per place. [2024-11-28 04:46:38,848 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 348 selfloop transitions, 102 changer transitions 0/465 dead transitions. [2024-11-28 04:46:38,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 465 transitions, 3915 flow [2024-11-28 04:46:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:46:38,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 04:46:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 543 transitions. [2024-11-28 04:46:38,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6019955654101996 [2024-11-28 04:46:38,852 INFO L175 Difference]: Start difference. First operand has 91 places, 85 transitions, 697 flow. Second operand 22 states and 543 transitions. [2024-11-28 04:46:38,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 465 transitions, 3915 flow [2024-11-28 04:46:38,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 465 transitions, 3776 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-28 04:46:38,887 INFO L231 Difference]: Finished difference. Result has 117 places, 179 transitions, 1724 flow [2024-11-28 04:46:38,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1724, PETRI_PLACES=117, PETRI_TRANSITIONS=179} [2024-11-28 04:46:38,889 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 79 predicate places. [2024-11-28 04:46:38,890 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 179 transitions, 1724 flow [2024-11-28 04:46:38,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 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) [2024-11-28 04:46:38,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:38,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:38,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:46:39,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:39,092 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:39,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1084870916, now seen corresponding path program 1 times [2024-11-28 04:46:39,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:39,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375772238] [2024-11-28 04:46:39,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:39,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:39,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375772238] [2024-11-28 04:46:39,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375772238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:39,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:39,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:39,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39655202] [2024-11-28 04:46:39,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:39,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:46:39,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:39,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:46:39,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:46:39,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-28 04:46:39,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 179 transitions, 1724 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-28 04:46:39,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:39,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-28 04:46:39,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:41,192 INFO L124 PetriNetUnfolderBase]: 2827/5962 cut-off events. [2024-11-28 04:46:41,193 INFO L125 PetriNetUnfolderBase]: For 16528/16844 co-relation queries the response was YES. [2024-11-28 04:46:41,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21810 conditions, 5962 events. 2827/5962 cut-off events. For 16528/16844 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 41327 event pairs, 400 based on Foata normal form. 316/6261 useless extension candidates. Maximal degree in co-relation 21761. Up to 1255 conditions per place. [2024-11-28 04:46:41,268 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 322 selfloop transitions, 208 changer transitions 0/548 dead transitions. [2024-11-28 04:46:41,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 548 transitions, 5906 flow [2024-11-28 04:46:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:46:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:46:41,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-28 04:46:41,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-11-28 04:46:41,271 INFO L175 Difference]: Start difference. First operand has 117 places, 179 transitions, 1724 flow. Second operand 10 states and 256 transitions. [2024-11-28 04:46:41,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 548 transitions, 5906 flow [2024-11-28 04:46:41,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 548 transitions, 5221 flow, removed 307 selfloop flow, removed 6 redundant places. [2024-11-28 04:46:41,399 INFO L231 Difference]: Finished difference. Result has 127 places, 367 transitions, 3991 flow [2024-11-28 04:46:41,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3991, PETRI_PLACES=127, PETRI_TRANSITIONS=367} [2024-11-28 04:46:41,400 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2024-11-28 04:46:41,400 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 367 transitions, 3991 flow [2024-11-28 04:46:41,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-28 04:46:41,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:41,401 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:41,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:46:41,401 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:41,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:41,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1838437790, now seen corresponding path program 2 times [2024-11-28 04:46:41,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:41,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080483460] [2024-11-28 04:46:41,402 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:46:41,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:41,419 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:46:41,419 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:46:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:41,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:41,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080483460] [2024-11-28 04:46:41,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080483460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:41,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:41,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:46:41,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249794948] [2024-11-28 04:46:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:41,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:46:41,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:41,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:46:41,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:46:41,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-28 04:46:41,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 367 transitions, 3991 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:41,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:41,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-28 04:46:41,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:44,757 INFO L124 PetriNetUnfolderBase]: 4098/8388 cut-off events. [2024-11-28 04:46:44,757 INFO L125 PetriNetUnfolderBase]: For 36157/36531 co-relation queries the response was YES. [2024-11-28 04:46:44,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34707 conditions, 8388 events. 4098/8388 cut-off events. For 36157/36531 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 60626 event pairs, 929 based on Foata normal form. 353/8695 useless extension candidates. Maximal degree in co-relation 34654. Up to 4475 conditions per place. [2024-11-28 04:46:44,847 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 480 selfloop transitions, 205 changer transitions 1/700 dead transitions. [2024-11-28 04:46:44,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 700 transitions, 8359 flow [2024-11-28 04:46:44,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:46:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:46:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 360 transitions. [2024-11-28 04:46:44,850 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-28 04:46:44,851 INFO L175 Difference]: Start difference. First operand has 127 places, 367 transitions, 3991 flow. Second operand 18 states and 360 transitions. [2024-11-28 04:46:44,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 700 transitions, 8359 flow [2024-11-28 04:46:45,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 700 transitions, 8333 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:45,124 INFO L231 Difference]: Finished difference. Result has 158 places, 527 transitions, 6771 flow [2024-11-28 04:46:45,124 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3969, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6771, PETRI_PLACES=158, PETRI_TRANSITIONS=527} [2024-11-28 04:46:45,125 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 120 predicate places. [2024-11-28 04:46:45,125 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 527 transitions, 6771 flow [2024-11-28 04:46:45,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:45,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:45,126 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:45,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:46:45,126 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:45,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1334890082, now seen corresponding path program 3 times [2024-11-28 04:46:45,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:45,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993663184] [2024-11-28 04:46:45,127 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:46:45,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:45,147 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:46:45,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:46:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993663184] [2024-11-28 04:46:45,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993663184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:45,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:45,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:46:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996150919] [2024-11-28 04:46:45,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:45,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:46:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:45,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:46:45,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:46:45,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-28 04:46:45,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 527 transitions, 6771 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:45,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:45,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-28 04:46:45,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:49,274 INFO L124 PetriNetUnfolderBase]: 5010/10336 cut-off events. [2024-11-28 04:46:49,274 INFO L125 PetriNetUnfolderBase]: For 73379/73874 co-relation queries the response was YES. [2024-11-28 04:46:49,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48088 conditions, 10336 events. 5010/10336 cut-off events. For 73379/73874 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 78949 event pairs, 1256 based on Foata normal form. 547/10844 useless extension candidates. Maximal degree in co-relation 48019. Up to 5491 conditions per place. [2024-11-28 04:46:49,358 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 603 selfloop transitions, 248 changer transitions 2/867 dead transitions. [2024-11-28 04:46:49,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 867 transitions, 12110 flow [2024-11-28 04:46:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:46:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 04:46:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 320 transitions. [2024-11-28 04:46:49,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-28 04:46:49,361 INFO L175 Difference]: Start difference. First operand has 158 places, 527 transitions, 6771 flow. Second operand 16 states and 320 transitions. [2024-11-28 04:46:49,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 867 transitions, 12110 flow [2024-11-28 04:46:49,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 867 transitions, 11992 flow, removed 56 selfloop flow, removed 1 redundant places. [2024-11-28 04:46:49,817 INFO L231 Difference]: Finished difference. Result has 180 places, 666 transitions, 9760 flow [2024-11-28 04:46:49,817 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6675, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9760, PETRI_PLACES=180, PETRI_TRANSITIONS=666} [2024-11-28 04:46:49,818 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 142 predicate places. [2024-11-28 04:46:49,818 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 666 transitions, 9760 flow [2024-11-28 04:46:49,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:49,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:49,818 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:49,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:46:49,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:49,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:49,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1862326791, now seen corresponding path program 1 times [2024-11-28 04:46:49,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:49,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305831928] [2024-11-28 04:46:49,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:49,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:46:49,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:49,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305831928] [2024-11-28 04:46:49,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305831928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:49,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:49,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127112827] [2024-11-28 04:46:49,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:49,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:46:49,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:49,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:46:49,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:46:49,903 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-28 04:46:49,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 666 transitions, 9760 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-28 04:46:49,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:49,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-28 04:46:49,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:52,782 INFO L124 PetriNetUnfolderBase]: 4598/9784 cut-off events. [2024-11-28 04:46:52,782 INFO L125 PetriNetUnfolderBase]: For 82766/83304 co-relation queries the response was YES. [2024-11-28 04:46:52,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47681 conditions, 9784 events. 4598/9784 cut-off events. For 82766/83304 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 76103 event pairs, 1034 based on Foata normal form. 705/10383 useless extension candidates. Maximal degree in co-relation 47603. Up to 4740 conditions per place. [2024-11-28 04:46:53,047 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 689 selfloop transitions, 126 changer transitions 0/839 dead transitions. [2024-11-28 04:46:53,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 839 transitions, 13855 flow [2024-11-28 04:46:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:46:53,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:46:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-28 04:46:53,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-11-28 04:46:53,048 INFO L175 Difference]: Start difference. First operand has 180 places, 666 transitions, 9760 flow. Second operand 4 states and 107 transitions. [2024-11-28 04:46:53,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 839 transitions, 13855 flow [2024-11-28 04:46:53,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 839 transitions, 13534 flow, removed 128 selfloop flow, removed 7 redundant places. [2024-11-28 04:46:53,464 INFO L231 Difference]: Finished difference. Result has 178 places, 673 transitions, 10140 flow [2024-11-28 04:46:53,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=9117, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=10140, PETRI_PLACES=178, PETRI_TRANSITIONS=673} [2024-11-28 04:46:53,466 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 140 predicate places. [2024-11-28 04:46:53,466 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 673 transitions, 10140 flow [2024-11-28 04:46:53,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-28 04:46:53,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:53,466 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:53,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:46:53,467 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:53,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1897555246, now seen corresponding path program 1 times [2024-11-28 04:46:53,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:53,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497635287] [2024-11-28 04:46:53,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:53,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:53,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:53,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497635287] [2024-11-28 04:46:53,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497635287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:53,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908863094] [2024-11-28 04:46:53,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:53,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:53,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:53,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:53,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:46:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:53,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:46:53,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:53,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:53,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908863094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:53,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:46:53,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 04:46:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593079899] [2024-11-28 04:46:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:53,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:46:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:53,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:46:53,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:46:53,784 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-28 04:46:53,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 673 transitions, 10140 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-11-28 04:46:53,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:53,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-28 04:46:53,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:56,729 INFO L124 PetriNetUnfolderBase]: 4689/9799 cut-off events. [2024-11-28 04:46:56,729 INFO L125 PetriNetUnfolderBase]: For 89081/89609 co-relation queries the response was YES. [2024-11-28 04:46:56,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50746 conditions, 9799 events. 4689/9799 cut-off events. For 89081/89609 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 74963 event pairs, 1267 based on Foata normal form. 611/10141 useless extension candidates. Maximal degree in co-relation 50668. Up to 5911 conditions per place. [2024-11-28 04:46:56,959 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 752 selfloop transitions, 89 changer transitions 28/894 dead transitions. [2024-11-28 04:46:56,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 894 transitions, 14889 flow [2024-11-28 04:46:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:46:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:46:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-28 04:46:56,962 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-28 04:46:56,962 INFO L175 Difference]: Start difference. First operand has 178 places, 673 transitions, 10140 flow. Second operand 6 states and 156 transitions. [2024-11-28 04:46:56,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 894 transitions, 14889 flow [2024-11-28 04:46:57,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 894 transitions, 14867 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:57,361 INFO L231 Difference]: Finished difference. Result has 182 places, 672 transitions, 10292 flow [2024-11-28 04:46:57,362 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=10114, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10292, PETRI_PLACES=182, PETRI_TRANSITIONS=672} [2024-11-28 04:46:57,362 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 144 predicate places. [2024-11-28 04:46:57,363 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 672 transitions, 10292 flow [2024-11-28 04:46:57,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-11-28 04:46:57,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:57,363 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:57,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:46:57,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:46:57,564 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:46:57,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:57,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1305329909, now seen corresponding path program 1 times [2024-11-28 04:46:57,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:57,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953612012] [2024-11-28 04:46:57,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:57,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:57,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:57,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953612012] [2024-11-28 04:46:57,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953612012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:57,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041697168] [2024-11-28 04:46:57,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:57,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:57,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:57,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:57,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:46:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:57,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:46:57,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:57,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:57,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041697168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:57,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:57,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 04:46:57,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53648265] [2024-11-28 04:46:57,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:57,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:46:57,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:57,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:46:57,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:46:57,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-28 04:46:57,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 672 transitions, 10292 flow. Second operand has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 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) [2024-11-28 04:46:57,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:57,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-28 04:46:57,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:47:07,306 INFO L124 PetriNetUnfolderBase]: 14575/29769 cut-off events. [2024-11-28 04:47:07,306 INFO L125 PetriNetUnfolderBase]: For 273950/275590 co-relation queries the response was YES. [2024-11-28 04:47:07,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156232 conditions, 29769 events. 14575/29769 cut-off events. For 273950/275590 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 261393 event pairs, 2989 based on Foata normal form. 1767/31371 useless extension candidates. Maximal degree in co-relation 156153. Up to 8358 conditions per place. [2024-11-28 04:47:07,608 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 2028 selfloop transitions, 216 changer transitions 0/2269 dead transitions. [2024-11-28 04:47:07,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 2269 transitions, 38441 flow [2024-11-28 04:47:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:47:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:47:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions. [2024-11-28 04:47:07,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6926829268292682 [2024-11-28 04:47:07,610 INFO L175 Difference]: Start difference. First operand has 182 places, 672 transitions, 10292 flow. Second operand 10 states and 284 transitions. [2024-11-28 04:47:07,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 2269 transitions, 38441 flow [2024-11-28 04:47:09,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 2269 transitions, 38374 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-28 04:47:09,262 INFO L231 Difference]: Finished difference. Result has 190 places, 869 transitions, 13749 flow [2024-11-28 04:47:09,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=10234, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13749, PETRI_PLACES=190, PETRI_TRANSITIONS=869} [2024-11-28 04:47:09,264 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 152 predicate places. [2024-11-28 04:47:09,264 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 869 transitions, 13749 flow [2024-11-28 04:47:09,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 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) [2024-11-28 04:47:09,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:47:09,264 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:09,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:47:09,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa68a61e-96db-4768-91af-913a246d2cd9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:47:09,465 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:47:09,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1495972510, now seen corresponding path program 1 times [2024-11-28 04:47:09,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:09,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159829156] [2024-11-28 04:47:09,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:09,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:10,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159829156] [2024-11-28 04:47:10,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159829156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:10,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:10,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:47:10,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69318365] [2024-11-28 04:47:10,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:10,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:47:10,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:10,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:47:10,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:47:10,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-28 04:47:10,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 869 transitions, 13749 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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) [2024-11-28 04:47:10,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:47:10,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-28 04:47:10,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:47:26,593 INFO L124 PetriNetUnfolderBase]: 22479/45422 cut-off events. [2024-11-28 04:47:26,593 INFO L125 PetriNetUnfolderBase]: For 497740/499062 co-relation queries the response was YES. [2024-11-28 04:47:26,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246147 conditions, 45422 events. 22479/45422 cut-off events. For 497740/499062 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 423762 event pairs, 6526 based on Foata normal form. 1791/47002 useless extension candidates. Maximal degree in co-relation 246066. Up to 28188 conditions per place. [2024-11-28 04:47:27,168 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 1050 selfloop transitions, 395 changer transitions 1/1459 dead transitions. [2024-11-28 04:47:27,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 1459 transitions, 24795 flow [2024-11-28 04:47:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:47:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-28 04:47:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 495 transitions. [2024-11-28 04:47:27,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4643527204502814 [2024-11-28 04:47:27,171 INFO L175 Difference]: Start difference. First operand has 190 places, 869 transitions, 13749 flow. Second operand 26 states and 495 transitions. [2024-11-28 04:47:27,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 1459 transitions, 24795 flow [2024-11-28 04:47:31,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 1459 transitions, 24713 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-28 04:47:31,738 INFO L231 Difference]: Finished difference. Result has 225 places, 1207 transitions, 21086 flow [2024-11-28 04:47:31,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=13658, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=21086, PETRI_PLACES=225, PETRI_TRANSITIONS=1207} [2024-11-28 04:47:31,739 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 187 predicate places. [2024-11-28 04:47:31,739 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 1207 transitions, 21086 flow [2024-11-28 04:47:31,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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) [2024-11-28 04:47:31,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:47:31,740 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:31,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:47:31,740 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:47:31,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1032682458, now seen corresponding path program 2 times [2024-11-28 04:47:31,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:31,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132611688] [2024-11-28 04:47:31,741 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:31,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:31,755 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:47:31,755 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:32,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:32,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132611688] [2024-11-28 04:47:32,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132611688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:32,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:32,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:47:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439236240] [2024-11-28 04:47:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:32,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:47:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:32,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:47:32,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:47:32,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-28 04:47:32,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 1207 transitions, 21086 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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) [2024-11-28 04:47:32,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:47:32,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-28 04:47:32,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand