./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.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_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/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_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/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_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:13:11,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:13:11,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:13:11,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:13:11,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:13:11,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:13:11,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:13:11,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:13:11,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:13:11,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:13:11,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:13:11,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:13:11,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:13:11,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:13:11,615 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:13:11,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:13:11,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:13:11,617 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:13:11,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:11,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:11,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:11,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:13:11,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:13:11,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:13:11,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:13:11,620 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_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-28 03:13:12,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:13:12,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:13:12,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:13:12,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:13:12,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:13:12,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-28 03:13:15,157 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/data/d9cedf30d/c2a6463ea02b424195fddcb46040075b/FLAG87701d3e8 [2024-11-28 03:13:15,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:13:15,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-28 03:13:15,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/data/d9cedf30d/c2a6463ea02b424195fddcb46040075b/FLAG87701d3e8 [2024-11-28 03:13:15,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/data/d9cedf30d/c2a6463ea02b424195fddcb46040075b [2024-11-28 03:13:15,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:13:15,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:13:15,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:15,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:13:15,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:13:15,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:15" (1/1) ... [2024-11-28 03:13:15,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9bcc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:15, skipping insertion in model container [2024-11-28 03:13:15,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:15" (1/1) ... [2024-11-28 03:13:15,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:13:16,092 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,093 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,093 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,094 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:16,161 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:13:16,216 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,216 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,216 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,216 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-28 03:13:16,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:16,300 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:13:16,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16 WrapperNode [2024-11-28 03:13:16,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:16,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:16,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:13:16,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:13:16,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,365 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 408 [2024-11-28 03:13:16,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:16,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:13:16,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:13:16,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:13:16,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,405 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [94, 2, 5, 2, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [70, 2, 5, 0, 0]. The 15 writes are split as follows [13, 0, 0, 1, 1]. [2024-11-28 03:13:16,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,422 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:13:16,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:13:16,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:13:16,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:13:16,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (1/1) ... [2024-11-28 03:13:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:16,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:16,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:13:16,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:13:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:13:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:13:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:13:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:13:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:13:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:13:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-28 03:13:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-28 03:13:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:13:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:13:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:13:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-28 03:13:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:13:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:13:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:13:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:13:16,533 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 03:13:16,741 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:13:16,743 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:13:17,413 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:13:17,414 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:13:18,424 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:13:18,424 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-28 03:13:18,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:18 BoogieIcfgContainer [2024-11-28 03:13:18,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:13:18,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:13:18,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:13:18,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:13:18,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:15" (1/3) ... [2024-11-28 03:13:18,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d99878d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:18, skipping insertion in model container [2024-11-28 03:13:18,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:16" (2/3) ... [2024-11-28 03:13:18,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d99878d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:18, skipping insertion in model container [2024-11-28 03:13:18,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:18" (3/3) ... [2024-11-28 03:13:18,438 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-28 03:13:18,454 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:13:18,455 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 134 locations, 1 initial locations, 20 loop locations, and 30 error locations. [2024-11-28 03:13:18,456 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:13:18,580 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 03:13:18,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2024-11-28 03:13:18,768 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2024-11-28 03:13:18,772 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-28 03:13:18,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 49/279 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1387 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 156. Up to 8 conditions per place. [2024-11-28 03:13:18,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2024-11-28 03:13:18,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2024-11-28 03:13:18,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:18,824 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;@185eccde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:18,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-28 03:13:18,837 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:18,837 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-28 03:13:18,837 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:18,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:18,838 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 03:13:18,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:18,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash 33227518, now seen corresponding path program 1 times [2024-11-28 03:13:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:18,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899258818] [2024-11-28 03:13:18,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:13:19,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48346236] [2024-11-28 03:13:19,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:19,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:19,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:19,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:19,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:13:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:19,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:13:19,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:19,291 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 03:13:19,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:19,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:19,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899258818] [2024-11-28 03:13:19,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:13:19,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48346236] [2024-11-28 03:13:19,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48346236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:19,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:19,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:13:19,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480408526] [2024-11-28 03:13:19,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:19,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:19,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:19,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:19,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:19,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-11-28 03:13:19,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:19,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:19,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-11-28 03:13:19,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:22,458 INFO L124 PetriNetUnfolderBase]: 8567/18703 cut-off events. [2024-11-28 03:13:22,458 INFO L125 PetriNetUnfolderBase]: For 269/269 co-relation queries the response was YES. [2024-11-28 03:13:22,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31554 conditions, 18703 events. 8567/18703 cut-off events. For 269/269 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170793 event pairs, 7350 based on Foata normal form. 2268/17636 useless extension candidates. Maximal degree in co-relation 30140. Up to 12703 conditions per place. [2024-11-28 03:13:22,613 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 76 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2024-11-28 03:13:22,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 480 flow [2024-11-28 03:13:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-11-28 03:13:22,627 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6447105788423154 [2024-11-28 03:13:22,629 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 323 transitions. [2024-11-28 03:13:22,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 480 flow [2024-11-28 03:13:22,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:13:22,641 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2024-11-28 03:13:22,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-11-28 03:13:22,647 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2024-11-28 03:13:22,648 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2024-11-28 03:13:22,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:22,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 03:13:22,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:13:22,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:13:22,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:22,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash 33227532, now seen corresponding path program 1 times [2024-11-28 03:13:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503647661] [2024-11-28 03:13:22,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:22,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:23,149 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 03:13:23,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503647661] [2024-11-28 03:13:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503647661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:23,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:23,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322588806] [2024-11-28 03:13:23,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:23,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:23,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:23,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:23,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-11-28 03:13:23,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:23,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:23,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-11-28 03:13:23,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:25,611 INFO L124 PetriNetUnfolderBase]: 8567/18717 cut-off events. [2024-11-28 03:13:25,612 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-28 03:13:25,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31581 conditions, 18717 events. 8567/18717 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170912 event pairs, 7350 based on Foata normal form. 4/15386 useless extension candidates. Maximal degree in co-relation 31543. Up to 12708 conditions per place. [2024-11-28 03:13:25,728 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-11-28 03:13:25,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 486 flow [2024-11-28 03:13:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-28 03:13:25,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988023952095808 [2024-11-28 03:13:25,732 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 300 transitions. [2024-11-28 03:13:25,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 486 flow [2024-11-28 03:13:25,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:25,738 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2024-11-28 03:13:25,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2024-11-28 03:13:25,741 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-11-28 03:13:25,741 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2024-11-28 03:13:25,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:25,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:25,741 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 03:13:25,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:13:25,742 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:25,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1866909419, now seen corresponding path program 1 times [2024-11-28 03:13:25,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:25,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550761853] [2024-11-28 03:13:25,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:26,146 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 03:13:26,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550761853] [2024-11-28 03:13:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550761853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:26,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:26,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33379672] [2024-11-28 03:13:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:26,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:26,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:26,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:26,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:26,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-28 03:13:26,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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 03:13:26,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:26,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-28 03:13:26,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:28,273 INFO L124 PetriNetUnfolderBase]: 8567/18713 cut-off events. [2024-11-28 03:13:28,273 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2024-11-28 03:13:28,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31593 conditions, 18713 events. 8567/18713 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170944 event pairs, 7350 based on Foata normal form. 4/15386 useless extension candidates. Maximal degree in co-relation 31530. Up to 12712 conditions per place. [2024-11-28 03:13:28,393 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 75 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2024-11-28 03:13:28,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 502 flow [2024-11-28 03:13:28,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:13:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-11-28 03:13:28,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5494011976047904 [2024-11-28 03:13:28,396 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 367 transitions. [2024-11-28 03:13:28,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 502 flow [2024-11-28 03:13:28,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:28,401 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2024-11-28 03:13:28,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=149, PETRI_TRANSITIONS=150} [2024-11-28 03:13:28,402 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2024-11-28 03:13:28,402 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2024-11-28 03:13:28,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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 03:13:28,403 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:28,403 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:28,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:13:28,403 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:28,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1568180044, now seen corresponding path program 1 times [2024-11-28 03:13:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:28,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126498299] [2024-11-28 03:13:28,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:28,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:13:28,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126498299] [2024-11-28 03:13:28,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126498299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:28,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:28,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:28,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444689469] [2024-11-28 03:13:28,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:28,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:28,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:28,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:28,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:28,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-28 03:13:28,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 150 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 03:13:28,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:28,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-28 03:13:28,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:30,326 INFO L124 PetriNetUnfolderBase]: 8567/18711 cut-off events. [2024-11-28 03:13:30,326 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2024-11-28 03:13:30,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31605 conditions, 18711 events. 8567/18711 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170905 event pairs, 7350 based on Foata normal form. 2/15384 useless extension candidates. Maximal degree in co-relation 31531. Up to 12707 conditions per place. [2024-11-28 03:13:30,457 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 81 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-11-28 03:13:30,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 560 flow [2024-11-28 03:13:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:13:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-11-28 03:13:30,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5538922155688623 [2024-11-28 03:13:30,459 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 4 states and 370 transitions. [2024-11-28 03:13:30,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 560 flow [2024-11-28 03:13:30,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:30,631 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 376 flow [2024-11-28 03:13:30,634 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=376, PETRI_PLACES=152, PETRI_TRANSITIONS=151} [2024-11-28 03:13:30,635 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-11-28 03:13:30,635 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 376 flow [2024-11-28 03:13:30,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 03:13:30,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:30,636 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 03:13:30,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:13:30,636 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:30,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash -512476373, now seen corresponding path program 1 times [2024-11-28 03:13:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:30,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816835313] [2024-11-28 03:13:30,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:30,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:30,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:30,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816835313] [2024-11-28 03:13:30,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816835313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:30,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853575242] [2024-11-28 03:13:30,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:30,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:30,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:30,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:13:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:31,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:13:31,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:31,254 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:31,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853575242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:31,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:31,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 03:13:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123269800] [2024-11-28 03:13:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:31,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:13:31,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:31,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:13:31,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:13:31,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-28 03:13:31,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 151 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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 03:13:31,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:31,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-28 03:13:31,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:33,075 INFO L124 PetriNetUnfolderBase]: 8567/18709 cut-off events. [2024-11-28 03:13:33,075 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-28 03:13:33,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31607 conditions, 18709 events. 8567/18709 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170791 event pairs, 7350 based on Foata normal form. 2/15382 useless extension candidates. Maximal degree in co-relation 31555. Up to 12700 conditions per place. [2024-11-28 03:13:33,166 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-11-28 03:13:33,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 528 flow [2024-11-28 03:13:33,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:13:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:13:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-11-28 03:13:33,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079840319361277 [2024-11-28 03:13:33,169 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 376 flow. Second operand 6 states and 509 transitions. [2024-11-28 03:13:33,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 528 flow [2024-11-28 03:13:33,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 150 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:33,174 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 382 flow [2024-11-28 03:13:33,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=382, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2024-11-28 03:13:33,175 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2024-11-28 03:13:33,175 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 382 flow [2024-11-28 03:13:33,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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 03:13:33,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:33,176 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 03:13:33,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:13:33,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:33,377 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:33,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1293102827, now seen corresponding path program 1 times [2024-11-28 03:13:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:33,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709019461] [2024-11-28 03:13:33,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:33,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:13:33,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709019461] [2024-11-28 03:13:33,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709019461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:33,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:33,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:33,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025221628] [2024-11-28 03:13:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:33,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:33,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:33,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:33,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:33,578 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-28 03:13:33,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 03:13:33,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:33,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-28 03:13:33,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:35,117 INFO L124 PetriNetUnfolderBase]: 8567/18707 cut-off events. [2024-11-28 03:13:35,117 INFO L125 PetriNetUnfolderBase]: For 312/312 co-relation queries the response was YES. [2024-11-28 03:13:35,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31613 conditions, 18707 events. 8567/18707 cut-off events. For 312/312 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170899 event pairs, 7350 based on Foata normal form. 2/15380 useless extension candidates. Maximal degree in co-relation 31554. Up to 12704 conditions per place. [2024-11-28 03:13:35,191 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-28 03:13:35,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 534 flow [2024-11-28 03:13:35,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:13:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-11-28 03:13:35,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-11-28 03:13:35,194 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 382 flow. Second operand 4 states and 366 transitions. [2024-11-28 03:13:35,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 534 flow [2024-11-28 03:13:35,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 519 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-28 03:13:35,200 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 383 flow [2024-11-28 03:13:35,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2024-11-28 03:13:35,201 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-11-28 03:13:35,202 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 383 flow [2024-11-28 03:13:35,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 03:13:35,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:35,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:35,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:13:35,204 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:35,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash 513203998, now seen corresponding path program 1 times [2024-11-28 03:13:35,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:35,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068387102] [2024-11-28 03:13:35,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:35,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:35,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:35,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068387102] [2024-11-28 03:13:35,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068387102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:35,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580031777] [2024-11-28 03:13:35,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:35,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:35,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:35,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:35,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:13:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:35,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:13:35,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:35,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:35,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580031777] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:35,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:35,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:13:35,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466991275] [2024-11-28 03:13:35,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:35,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:13:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:35,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:13:35,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:13:35,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-28 03:13:35,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 150 transitions, 383 flow. Second operand has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 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 03:13:35,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:35,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-28 03:13:35,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:38,324 INFO L124 PetriNetUnfolderBase]: 8567/18721 cut-off events. [2024-11-28 03:13:38,329 INFO L125 PetriNetUnfolderBase]: For 344/344 co-relation queries the response was YES. [2024-11-28 03:13:38,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31661 conditions, 18721 events. 8567/18721 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170970 event pairs, 7350 based on Foata normal form. 4/15396 useless extension candidates. Maximal degree in co-relation 31584. Up to 12702 conditions per place. [2024-11-28 03:13:38,476 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 78 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-11-28 03:13:38,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 156 transitions, 588 flow [2024-11-28 03:13:38,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:13:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:13:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2024-11-28 03:13:38,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49786142001710865 [2024-11-28 03:13:38,479 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 383 flow. Second operand 7 states and 582 transitions. [2024-11-28 03:13:38,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 156 transitions, 588 flow [2024-11-28 03:13:38,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:38,485 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 423 flow [2024-11-28 03:13:38,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2024-11-28 03:13:38,486 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-11-28 03:13:38,486 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 423 flow [2024-11-28 03:13:38,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 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 03:13:38,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:38,487 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:38,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:38,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 03:13:38,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:38,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1424672994, now seen corresponding path program 2 times [2024-11-28 03:13:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:38,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553717506] [2024-11-28 03:13:38,689 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:13:38,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:38,758 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:13:38,759 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:13:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:13:38,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:38,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553717506] [2024-11-28 03:13:38,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553717506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:38,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:38,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:38,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750970940] [2024-11-28 03:13:38,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:38,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:38,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:38,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:38,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:38,972 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-28 03:13:38,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 03:13:38,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:38,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-28 03:13:38,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:40,765 INFO L124 PetriNetUnfolderBase]: 8329/17989 cut-off events. [2024-11-28 03:13:40,766 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-28 03:13:40,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30705 conditions, 17989 events. 8329/17989 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 164485 event pairs, 3381 based on Foata normal form. 22/14681 useless extension candidates. Maximal degree in co-relation 30620. Up to 12412 conditions per place. [2024-11-28 03:13:40,837 INFO L140 encePairwiseOnDemand]: 161/167 looper letters, 122 selfloop transitions, 3 changer transitions 0/198 dead transitions. [2024-11-28 03:13:40,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 198 transitions, 763 flow [2024-11-28 03:13:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:13:40,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2024-11-28 03:13:40,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6197604790419161 [2024-11-28 03:13:40,840 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 423 flow. Second operand 4 states and 414 transitions. [2024-11-28 03:13:40,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 198 transitions, 763 flow [2024-11-28 03:13:40,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 198 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:40,845 INFO L231 Difference]: Finished difference. Result has 159 places, 151 transitions, 425 flow [2024-11-28 03:13:40,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=159, PETRI_TRANSITIONS=151} [2024-11-28 03:13:40,846 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-11-28 03:13:40,849 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 151 transitions, 425 flow [2024-11-28 03:13:40,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 03:13:40,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:40,849 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2024-11-28 03:13:40,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:13:40,850 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:40,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash -311438707, now seen corresponding path program 1 times [2024-11-28 03:13:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688470488] [2024-11-28 03:13:40,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:40,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:13:41,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688470488] [2024-11-28 03:13:41,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688470488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155053942] [2024-11-28 03:13:41,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:41,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:41,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:41,250 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:41,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:13:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:41,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:13:41,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:13:41,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:13:41,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155053942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:41,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:41,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:13:41,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393566037] [2024-11-28 03:13:41,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:41,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:13:41,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:41,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:13:41,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:13:42,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-28 03:13:42,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 151 transitions, 425 flow. Second operand has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 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 03:13:42,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:42,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-28 03:13:42,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:45,103 INFO L124 PetriNetUnfolderBase]: 8493/18555 cut-off events. [2024-11-28 03:13:45,103 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-28 03:13:45,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31557 conditions, 18555 events. 8493/18555 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 170340 event pairs, 7308 based on Foata normal form. 8/15265 useless extension candidates. Maximal degree in co-relation 31400. Up to 12580 conditions per place. [2024-11-28 03:13:45,192 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 90 selfloop transitions, 15 changer transitions 0/174 dead transitions. [2024-11-28 03:13:45,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 174 transitions, 797 flow [2024-11-28 03:13:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:13:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 03:13:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1172 transitions. [2024-11-28 03:13:45,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4678642714570858 [2024-11-28 03:13:45,196 INFO L175 Difference]: Start difference. First operand has 159 places, 151 transitions, 425 flow. Second operand 15 states and 1172 transitions. [2024-11-28 03:13:45,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 174 transitions, 797 flow [2024-11-28 03:13:45,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 174 transitions, 791 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:13:45,201 INFO L231 Difference]: Finished difference. Result has 175 places, 160 transitions, 553 flow [2024-11-28 03:13:45,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=553, PETRI_PLACES=175, PETRI_TRANSITIONS=160} [2024-11-28 03:13:45,202 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 35 predicate places. [2024-11-28 03:13:45,202 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 160 transitions, 553 flow [2024-11-28 03:13:45,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 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 03:13:45,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:45,203 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-11-28 03:13:45,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:45,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:45,404 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:45,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash 702489229, now seen corresponding path program 2 times [2024-11-28 03:13:45,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:45,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733064764] [2024-11-28 03:13:45,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:13:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:45,562 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:13:45,562 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:13:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:13:46,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:46,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733064764] [2024-11-28 03:13:46,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733064764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:46,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569495464] [2024-11-28 03:13:46,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:13:46,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:46,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:46,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:46,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:13:47,000 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:13:47,000 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:13:47,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:13:47,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:13:47,127 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:13:47,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569495464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:47,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:47,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-28 03:13:47,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492609960] [2024-11-28 03:13:47,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:47,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:13:47,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:47,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:13:47,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:13:47,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-28 03:13:47,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 160 transitions, 553 flow. Second operand has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 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 03:13:47,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:47,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-28 03:13:47,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:51,820 INFO L124 PetriNetUnfolderBase]: 8493/18651 cut-off events. [2024-11-28 03:13:51,820 INFO L125 PetriNetUnfolderBase]: For 1417/1417 co-relation queries the response was YES. [2024-11-28 03:13:51,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32013 conditions, 18651 events. 8493/18651 cut-off events. For 1417/1417 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 170817 event pairs, 7308 based on Foata normal form. 16/15369 useless extension candidates. Maximal degree in co-relation 31646. Up to 12580 conditions per place. [2024-11-28 03:13:51,908 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 114 selfloop transitions, 31 changer transitions 0/214 dead transitions. [2024-11-28 03:13:51,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 214 transitions, 1307 flow [2024-11-28 03:13:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:13:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-28 03:13:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2352 transitions. [2024-11-28 03:13:51,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4543171721073981 [2024-11-28 03:13:51,915 INFO L175 Difference]: Start difference. First operand has 175 places, 160 transitions, 553 flow. Second operand 31 states and 2352 transitions. [2024-11-28 03:13:51,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 214 transitions, 1307 flow [2024-11-28 03:13:51,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 214 transitions, 1273 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-11-28 03:13:51,923 INFO L231 Difference]: Finished difference. Result has 210 places, 177 transitions, 825 flow [2024-11-28 03:13:51,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=825, PETRI_PLACES=210, PETRI_TRANSITIONS=177} [2024-11-28 03:13:51,924 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 70 predicate places. [2024-11-28 03:13:51,924 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 177 transitions, 825 flow [2024-11-28 03:13:51,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 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 03:13:51,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:51,926 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-11-28 03:13:51,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:52,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:13:52,130 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:13:52,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:52,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1805270387, now seen corresponding path program 3 times [2024-11-28 03:13:52,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:52,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206305760] [2024-11-28 03:13:52,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:13:52,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:04,972 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2024-11-28 03:14:04,973 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:07,632 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:14:07,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206305760] [2024-11-28 03:14:07,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206305760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744364155] [2024-11-28 03:14:07,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:14:07,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:07,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:07,638 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:07,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:14:08,244 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:14:08,244 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:08,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:14:08,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:08,608 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-28 03:14:08,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:14:08,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744364155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:08,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:08,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [34] total 41 [2024-11-28 03:14:08,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361380514] [2024-11-28 03:14:08,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:08,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:14:08,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:08,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:14:08,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1354, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:14:08,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-11-28 03:14:08,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 177 transitions, 825 flow. Second operand has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 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 03:14:08,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:08,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-11-28 03:14:08,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:11,565 INFO L124 PetriNetUnfolderBase]: 8493/18636 cut-off events. [2024-11-28 03:14:11,565 INFO L125 PetriNetUnfolderBase]: For 1597/1597 co-relation queries the response was YES. [2024-11-28 03:14:11,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32047 conditions, 18636 events. 8493/18636 cut-off events. For 1597/1597 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 170652 event pairs, 7308 based on Foata normal form. 15/15353 useless extension candidates. Maximal degree in co-relation 31631. Up to 12573 conditions per place. [2024-11-28 03:14:11,720 INFO L140 encePairwiseOnDemand]: 157/167 looper letters, 103 selfloop transitions, 41 changer transitions 0/211 dead transitions. [2024-11-28 03:14:11,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 211 transitions, 1532 flow [2024-11-28 03:14:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:14:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 03:14:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2024-11-28 03:14:11,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45944474686989656 [2024-11-28 03:14:11,723 INFO L175 Difference]: Start difference. First operand has 210 places, 177 transitions, 825 flow. Second operand 11 states and 844 transitions. [2024-11-28 03:14:11,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 211 transitions, 1532 flow [2024-11-28 03:14:11,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 211 transitions, 1480 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-28 03:14:11,738 INFO L231 Difference]: Finished difference. Result has 212 places, 210 transitions, 1414 flow [2024-11-28 03:14:11,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1414, PETRI_PLACES=212, PETRI_TRANSITIONS=210} [2024-11-28 03:14:11,739 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 72 predicate places. [2024-11-28 03:14:11,739 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 210 transitions, 1414 flow [2024-11-28 03:14:11,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 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 03:14:11,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:11,740 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:11,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:14:11,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:14:11,944 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-28 03:14:11,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1058982215, now seen corresponding path program 1 times [2024-11-28 03:14:11,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:11,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960429260] [2024-11-28 03:14:11,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:11,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-28 03:14:12,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:12,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960429260] [2024-11-28 03:14:12,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960429260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:12,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486531155] [2024-11-28 03:14:12,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:12,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:12,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:12,556 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:12,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7591ff-ac1e-4a84-80a7-e6aef2823b03/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:14:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:13,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 03:14:13,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:14,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:15,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486531155] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:15,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:15,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2024-11-28 03:14:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378627184] [2024-11-28 03:14:15,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:15,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-28 03:14:15,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:15,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-28 03:14:15,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2024-11-28 03:14:15,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-11-28 03:14:15,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 210 transitions, 1414 flow. Second operand has 64 states, 64 states have (on average 70.640625) internal successors, (4521), 64 states have internal predecessors, (4521), 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 03:14:15,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:15,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-11-28 03:14:15,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand