./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:39:12,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:39:12,325 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:39:12,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:39:12,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:39:12,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:39:12,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:39:12,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:39:12,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:39:12,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:39:12,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:39:12,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:39:12,386 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:39:12,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:39:12,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:39:12,389 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:39:12,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:39:12,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:39:12,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:39:12,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:39:12,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:39:12,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:39:12,393 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:39:12,393 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:39:12,394 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:39:12,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:39:12,395 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:39:12,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:39:12,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:39:12,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:39:12,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:39:12,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:39:12,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:39:12,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:39:12,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:39:12,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:39:12,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:39:12,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:39:12,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:39:12,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:39:12,419 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:39:12,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2023-11-06 22:39:12,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:39:12,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:39:12,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:39:12,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:39:12,832 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:39:12,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-06 22:39:15,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:39:16,209 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:39:16,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-06 22:39:16,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/data/c97447da2/c427433b543f463cb8883c0010ac43db/FLAG2f65d1b0e [2023-11-06 22:39:16,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/data/c97447da2/c427433b543f463cb8883c0010ac43db [2023-11-06 22:39:16,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:39:16,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:39:16,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:39:16,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:39:16,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:39:16,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb4dbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16, skipping insertion in model container [2023-11-06 22:39:16,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:39:16,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:39:16,536 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:39:16,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:39:16,587 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:39:16,587 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:39:16,595 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:39:16,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16 WrapperNode [2023-11-06 22:39:16,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:39:16,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:39:16,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:39:16,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:39:16,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,664 INFO L138 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 19, calls inlined = 27, statements flattened = 433 [2023-11-06 22:39:16,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:39:16,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:39:16,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:39:16,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:39:16,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:39:16,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:39:16,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:39:16,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:39:16,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (1/1) ... [2023-11-06 22:39:16,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:39:16,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:16,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:16,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:39:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:39:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:39:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:39:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:39:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:39:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:39:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:39:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:39:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:39:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:39:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:39:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:39:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:39:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:39:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:39:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:39:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:39:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:39:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:39:16,854 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:39:17,019 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:39:17,022 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:39:17,776 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:39:18,402 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:39:18,402 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-06 22:39:18,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:18 BoogieIcfgContainer [2023-11-06 22:39:18,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:39:18,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:39:18,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:39:18,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:39:18,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:39:16" (1/3) ... [2023-11-06 22:39:18,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb3f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:18, skipping insertion in model container [2023-11-06 22:39:18,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:16" (2/3) ... [2023-11-06 22:39:18,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb3f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:18, skipping insertion in model container [2023-11-06 22:39:18,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:18" (3/3) ... [2023-11-06 22:39:18,415 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2023-11-06 22:39:18,425 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:39:18,436 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:39:18,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-06 22:39:18,437 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:39:18,681 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:39:18,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 385 places, 410 transitions, 841 flow [2023-11-06 22:39:18,973 INFO L124 PetriNetUnfolderBase]: 35/407 cut-off events. [2023-11-06 22:39:18,974 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:39:18,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 407 events. 35/407 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 920 event pairs, 0 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 325. Up to 2 conditions per place. [2023-11-06 22:39:18,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 410 transitions, 841 flow [2023-11-06 22:39:18,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 383 transitions, 781 flow [2023-11-06 22:39:18,996 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:39:19,007 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 383 transitions, 781 flow [2023-11-06 22:39:19,012 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 383 transitions, 781 flow [2023-11-06 22:39:19,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 383 transitions, 781 flow [2023-11-06 22:39:19,131 INFO L124 PetriNetUnfolderBase]: 34/383 cut-off events. [2023-11-06 22:39:19,131 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:39:19,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 383 events. 34/383 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 888 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 325. Up to 2 conditions per place. [2023-11-06 22:39:19,152 INFO L119 LiptonReduction]: Number of co-enabled transitions 19968 [2023-11-06 22:39:57,528 INFO L134 LiptonReduction]: Checked pairs total: 25744 [2023-11-06 22:39:57,528 INFO L136 LiptonReduction]: Total number of compositions: 464 [2023-11-06 22:39:57,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:39:57,550 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@29701990, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:39:57,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2023-11-06 22:39:57,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:39:57,554 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:39:57,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:39:57,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:39:57,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:39:57,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:39:57,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash 65281, now seen corresponding path program 1 times [2023-11-06 22:39:57,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238144952] [2023-11-06 22:39:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:57,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:39:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:39:57,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238144952] [2023-11-06 22:39:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238144952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:39:57,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:39:57,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:39:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024236645] [2023-11-06 22:39:57,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:39:57,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:39:57,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:39:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:39:57,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:39:58,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 874 [2023-11-06 22:39:58,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:39:58,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:39:58,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 874 [2023-11-06 22:39:58,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:02,031 INFO L124 PetriNetUnfolderBase]: 12484/16158 cut-off events. [2023-11-06 22:40:02,031 INFO L125 PetriNetUnfolderBase]: For 475/475 co-relation queries the response was YES. [2023-11-06 22:40:02,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32790 conditions, 16158 events. 12484/16158 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 85089 event pairs, 7801 based on Foata normal form. 0/6021 useless extension candidates. Maximal degree in co-relation 30665. Up to 16132 conditions per place. [2023-11-06 22:40:02,204 INFO L140 encePairwiseOnDemand]: 852/874 looper letters, 59 selfloop transitions, 10 changer transitions 0/72 dead transitions. [2023-11-06 22:40:02,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 72 transitions, 297 flow [2023-11-06 22:40:02,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1125 transitions. [2023-11-06 22:40:02,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290617848970252 [2023-11-06 22:40:02,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1125 transitions. [2023-11-06 22:40:02,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1125 transitions. [2023-11-06 22:40:02,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:02,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1125 transitions. [2023-11-06 22:40:02,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:02,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:02,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:02,277 INFO L175 Difference]: Start difference. First operand has 71 places, 70 transitions, 155 flow. Second operand 3 states and 1125 transitions. [2023-11-06 22:40:02,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 72 transitions, 297 flow [2023-11-06 22:40:02,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 288 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:40:02,290 INFO L231 Difference]: Finished difference. Result has 64 places, 72 transitions, 218 flow [2023-11-06 22:40:02,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2023-11-06 22:40:02,297 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, -7 predicate places. [2023-11-06 22:40:02,297 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 218 flow [2023-11-06 22:40:02,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:02,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:02,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:02,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:40:02,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:02,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:02,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2025628, now seen corresponding path program 1 times [2023-11-06 22:40:02,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:02,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653207533] [2023-11-06 22:40:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:02,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:02,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:02,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653207533] [2023-11-06 22:40:02,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653207533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:02,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:02,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:40:02,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373796329] [2023-11-06 22:40:02,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:02,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:02,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:02,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:02,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:02,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 874 [2023-11-06 22:40:02,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:02,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:02,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 874 [2023-11-06 22:40:02,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:06,037 INFO L124 PetriNetUnfolderBase]: 12484/16155 cut-off events. [2023-11-06 22:40:06,037 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-11-06 22:40:06,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32674 conditions, 16155 events. 12484/16155 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 85182 event pairs, 7801 based on Foata normal form. 0/6024 useless extension candidates. Maximal degree in co-relation 32597. Up to 16120 conditions per place. [2023-11-06 22:40:06,131 INFO L140 encePairwiseOnDemand]: 865/874 looper letters, 56 selfloop transitions, 10 changer transitions 0/69 dead transitions. [2023-11-06 22:40:06,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 69 transitions, 338 flow [2023-11-06 22:40:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1105 transitions. [2023-11-06 22:40:06,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42143401983218914 [2023-11-06 22:40:06,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1105 transitions. [2023-11-06 22:40:06,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1105 transitions. [2023-11-06 22:40:06,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:06,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1105 transitions. [2023-11-06 22:40:06,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:06,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:06,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:06,163 INFO L175 Difference]: Start difference. First operand has 64 places, 72 transitions, 218 flow. Second operand 3 states and 1105 transitions. [2023-11-06 22:40:06,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 69 transitions, 338 flow [2023-11-06 22:40:06,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:40:06,175 INFO L231 Difference]: Finished difference. Result has 61 places, 69 transitions, 206 flow [2023-11-06 22:40:06,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=69} [2023-11-06 22:40:06,176 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, -10 predicate places. [2023-11-06 22:40:06,176 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 69 transitions, 206 flow [2023-11-06 22:40:06,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:06,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:06,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:06,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:40:06,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:06,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2025626, now seen corresponding path program 1 times [2023-11-06 22:40:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:06,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427136841] [2023-11-06 22:40:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:06,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:06,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427136841] [2023-11-06 22:40:06,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427136841] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:06,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000115683] [2023-11-06 22:40:06,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:06,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:06,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:06,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:06,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:40:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:06,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:40:06,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:06,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:06,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000115683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:06,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:06,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-06 22:40:06,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741061070] [2023-11-06 22:40:06,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:06,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:40:06,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:06,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:40:06,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:40:06,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 874 [2023-11-06 22:40:06,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 69 transitions, 206 flow. Second operand has 7 states, 7 states have (on average 349.14285714285717) internal successors, (2444), 7 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:06,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:06,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 874 [2023-11-06 22:40:06,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:09,930 INFO L124 PetriNetUnfolderBase]: 12499/16179 cut-off events. [2023-11-06 22:40:09,930 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-11-06 22:40:09,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32758 conditions, 16179 events. 12499/16179 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 85163 event pairs, 7801 based on Foata normal form. 0/6041 useless extension candidates. Maximal degree in co-relation 32597. Up to 16141 conditions per place. [2023-11-06 22:40:10,046 INFO L140 encePairwiseOnDemand]: 861/874 looper letters, 56 selfloop transitions, 34 changer transitions 0/93 dead transitions. [2023-11-06 22:40:10,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 93 transitions, 506 flow [2023-11-06 22:40:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:40:10,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:40:10,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2187 transitions. [2023-11-06 22:40:10,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4170480549199085 [2023-11-06 22:40:10,057 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2187 transitions. [2023-11-06 22:40:10,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2187 transitions. [2023-11-06 22:40:10,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:10,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2187 transitions. [2023-11-06 22:40:10,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 364.5) internal successors, (2187), 6 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:10,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 874.0) internal successors, (6118), 7 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:10,088 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 874.0) internal successors, (6118), 7 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:10,088 INFO L175 Difference]: Start difference. First operand has 61 places, 69 transitions, 206 flow. Second operand 6 states and 2187 transitions. [2023-11-06 22:40:10,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 93 transitions, 506 flow [2023-11-06 22:40:10,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 93 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:40:10,096 INFO L231 Difference]: Finished difference. Result has 67 places, 93 transitions, 415 flow [2023-11-06 22:40:10,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=67, PETRI_TRANSITIONS=93} [2023-11-06 22:40:10,098 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, -4 predicate places. [2023-11-06 22:40:10,099 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 93 transitions, 415 flow [2023-11-06 22:40:10,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 349.14285714285717) internal successors, (2444), 7 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:10,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:10,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:40:10,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:10,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:10,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:10,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash 275537755, now seen corresponding path program 1 times [2023-11-06 22:40:10,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:10,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564306692] [2023-11-06 22:40:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:10,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:40:10,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564306692] [2023-11-06 22:40:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564306692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:10,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:40:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084825688] [2023-11-06 22:40:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:10,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:10,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:10,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:10,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:10,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 874 [2023-11-06 22:40:10,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 93 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:10,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:10,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 874 [2023-11-06 22:40:10,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:13,563 INFO L124 PetriNetUnfolderBase]: 12505/16192 cut-off events. [2023-11-06 22:40:13,564 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-11-06 22:40:13,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32871 conditions, 16192 events. 12505/16192 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 85241 event pairs, 7801 based on Foata normal form. 0/6054 useless extension candidates. Maximal degree in co-relation 32730. Up to 16158 conditions per place. [2023-11-06 22:40:13,664 INFO L140 encePairwiseOnDemand]: 869/874 looper letters, 92 selfloop transitions, 11 changer transitions 0/106 dead transitions. [2023-11-06 22:40:13,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 708 flow [2023-11-06 22:40:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1139 transitions. [2023-11-06 22:40:13,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43440122044241036 [2023-11-06 22:40:13,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1139 transitions. [2023-11-06 22:40:13,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1139 transitions. [2023-11-06 22:40:13,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:13,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1139 transitions. [2023-11-06 22:40:13,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:13,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:13,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:13,687 INFO L175 Difference]: Start difference. First operand has 67 places, 93 transitions, 415 flow. Second operand 3 states and 1139 transitions. [2023-11-06 22:40:13,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 708 flow [2023-11-06 22:40:13,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 638 flow, removed 27 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:13,702 INFO L231 Difference]: Finished difference. Result has 69 places, 99 transitions, 453 flow [2023-11-06 22:40:13,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=69, PETRI_TRANSITIONS=99} [2023-11-06 22:40:13,704 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, -2 predicate places. [2023-11-06 22:40:13,704 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 99 transitions, 453 flow [2023-11-06 22:40:13,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:13,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:13,706 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-06 22:40:13,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:40:13,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:13,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash 217845183, now seen corresponding path program 2 times [2023-11-06 22:40:13,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:13,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133844102] [2023-11-06 22:40:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:13,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:13,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133844102] [2023-11-06 22:40:13,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133844102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925737246] [2023-11-06 22:40:13,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:40:13,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:13,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:13,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:13,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:40:14,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:40:14,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:40:14,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:40:14,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:40:14,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:40:14,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925737246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:14,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:40:14,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-06 22:40:14,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816816066] [2023-11-06 22:40:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:14,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:14,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:40:14,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 874 [2023-11-06 22:40:14,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 99 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:14,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:14,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 874 [2023-11-06 22:40:14,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:16,913 INFO L124 PetriNetUnfolderBase]: 12505/16191 cut-off events. [2023-11-06 22:40:16,914 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-06 22:40:16,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32866 conditions, 16191 events. 12505/16191 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 85141 event pairs, 7801 based on Foata normal form. 1/6061 useless extension candidates. Maximal degree in co-relation 32732. Up to 16163 conditions per place. [2023-11-06 22:40:17,009 INFO L140 encePairwiseOnDemand]: 871/874 looper letters, 89 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2023-11-06 22:40:17,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 98 transitions, 633 flow [2023-11-06 22:40:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1120 transitions. [2023-11-06 22:40:17,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4271548436308162 [2023-11-06 22:40:17,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1120 transitions. [2023-11-06 22:40:17,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1120 transitions. [2023-11-06 22:40:17,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:17,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1120 transitions. [2023-11-06 22:40:17,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,031 INFO L175 Difference]: Start difference. First operand has 69 places, 99 transitions, 453 flow. Second operand 3 states and 1120 transitions. [2023-11-06 22:40:17,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 98 transitions, 633 flow [2023-11-06 22:40:17,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 98 transitions, 622 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:17,038 INFO L231 Difference]: Finished difference. Result has 69 places, 98 transitions, 444 flow [2023-11-06 22:40:17,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=69, PETRI_TRANSITIONS=98} [2023-11-06 22:40:17,043 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, -2 predicate places. [2023-11-06 22:40:17,043 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 98 transitions, 444 flow [2023-11-06 22:40:17,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:17,045 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:17,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:17,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:17,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:17,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:17,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1494730302, now seen corresponding path program 1 times [2023-11-06 22:40:17,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:17,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486910532] [2023-11-06 22:40:17,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:17,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:40:17,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:17,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486910532] [2023-11-06 22:40:17,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486910532] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:17,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033580032] [2023-11-06 22:40:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:17,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:17,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:17,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:17,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:40:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:17,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:40:17,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:17,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:17,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033580032] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:17,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:17,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 9 [2023-11-06 22:40:17,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509079908] [2023-11-06 22:40:17,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:17,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:40:17,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:17,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:40:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:40:18,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 874 [2023-11-06 22:40:18,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 98 transitions, 444 flow. Second operand has 9 states, 9 states have (on average 334.0) internal successors, (3006), 9 states have internal predecessors, (3006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:18,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 874 [2023-11-06 22:40:18,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:23,113 INFO L124 PetriNetUnfolderBase]: 15041/19855 cut-off events. [2023-11-06 22:40:23,113 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2023-11-06 22:40:23,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40588 conditions, 19855 events. 15041/19855 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 111110 event pairs, 9765 based on Foata normal form. 2/8189 useless extension candidates. Maximal degree in co-relation 40532. Up to 16131 conditions per place. [2023-11-06 22:40:23,261 INFO L140 encePairwiseOnDemand]: 855/874 looper letters, 115 selfloop transitions, 49 changer transitions 2/169 dead transitions. [2023-11-06 22:40:23,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 169 transitions, 1073 flow [2023-11-06 22:40:23,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:40:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-06 22:40:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 5119 transitions. [2023-11-06 22:40:23,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.390465293668955 [2023-11-06 22:40:23,286 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 5119 transitions. [2023-11-06 22:40:23,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 5119 transitions. [2023-11-06 22:40:23,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:23,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 5119 transitions. [2023-11-06 22:40:23,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 341.26666666666665) internal successors, (5119), 15 states have internal predecessors, (5119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:23,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 874.0) internal successors, (13984), 16 states have internal predecessors, (13984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:23,341 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 874.0) internal successors, (13984), 16 states have internal predecessors, (13984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:23,342 INFO L175 Difference]: Start difference. First operand has 69 places, 98 transitions, 444 flow. Second operand 15 states and 5119 transitions. [2023-11-06 22:40:23,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 169 transitions, 1073 flow [2023-11-06 22:40:23,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 169 transitions, 1061 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:40:23,355 INFO L231 Difference]: Finished difference. Result has 85 places, 123 transitions, 794 flow [2023-11-06 22:40:23,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=794, PETRI_PLACES=85, PETRI_TRANSITIONS=123} [2023-11-06 22:40:23,357 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 14 predicate places. [2023-11-06 22:40:23,357 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 123 transitions, 794 flow [2023-11-06 22:40:23,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 334.0) internal successors, (3006), 9 states have internal predecessors, (3006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:23,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:23,359 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2023-11-06 22:40:23,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:23,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:23,565 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:23,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:23,566 INFO L85 PathProgramCache]: Analyzing trace with hash -71267696, now seen corresponding path program 1 times [2023-11-06 22:40:23,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:23,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91759757] [2023-11-06 22:40:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:23,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-06 22:40:23,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:23,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91759757] [2023-11-06 22:40:23,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91759757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:23,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:23,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:40:23,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984229766] [2023-11-06 22:40:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:23,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:40:23,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:23,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:40:23,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:40:23,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 874 [2023-11-06 22:40:23,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 123 transitions, 794 flow. Second operand has 4 states, 4 states have (on average 341.25) internal successors, (1365), 4 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:23,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:23,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 874 [2023-11-06 22:40:23,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:27,135 INFO L124 PetriNetUnfolderBase]: 15041/19856 cut-off events. [2023-11-06 22:40:27,135 INFO L125 PetriNetUnfolderBase]: For 808/808 co-relation queries the response was YES. [2023-11-06 22:40:27,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45679 conditions, 19856 events. 15041/19856 cut-off events. For 808/808 co-relation queries the response was YES. Maximal size of possible extension queue 1318. Compared 111590 event pairs, 9765 based on Foata normal form. 1/8832 useless extension candidates. Maximal degree in co-relation 45477. Up to 19805 conditions per place. [2023-11-06 22:40:27,273 INFO L140 encePairwiseOnDemand]: 869/874 looper letters, 111 selfloop transitions, 10 changer transitions 0/124 dead transitions. [2023-11-06 22:40:27,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 124 transitions, 1045 flow [2023-11-06 22:40:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:40:27,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:40:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1423 transitions. [2023-11-06 22:40:27,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4070366132723112 [2023-11-06 22:40:27,280 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1423 transitions. [2023-11-06 22:40:27,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1423 transitions. [2023-11-06 22:40:27,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:27,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1423 transitions. [2023-11-06 22:40:27,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 355.75) internal successors, (1423), 4 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:27,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 874.0) internal successors, (4370), 5 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:27,297 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 874.0) internal successors, (4370), 5 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:27,297 INFO L175 Difference]: Start difference. First operand has 85 places, 123 transitions, 794 flow. Second operand 4 states and 1423 transitions. [2023-11-06 22:40:27,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 124 transitions, 1045 flow [2023-11-06 22:40:27,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 124 transitions, 1005 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:27,320 INFO L231 Difference]: Finished difference. Result has 87 places, 124 transitions, 783 flow [2023-11-06 22:40:27,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=783, PETRI_PLACES=87, PETRI_TRANSITIONS=124} [2023-11-06 22:40:27,321 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 16 predicate places. [2023-11-06 22:40:27,322 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 124 transitions, 783 flow [2023-11-06 22:40:27,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 341.25) internal successors, (1365), 4 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:27,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:27,323 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:40:27,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:40:27,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:27,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:27,324 INFO L85 PathProgramCache]: Analyzing trace with hash -48217144, now seen corresponding path program 1 times [2023-11-06 22:40:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:27,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168913359] [2023-11-06 22:40:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:27,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:27,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:27,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168913359] [2023-11-06 22:40:27,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168913359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:27,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:27,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:40:27,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744167893] [2023-11-06 22:40:27,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:27,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:27,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:27,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:27,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:27,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 874 [2023-11-06 22:40:27,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 124 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:27,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:27,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 874 [2023-11-06 22:40:27,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:30,485 INFO L124 PetriNetUnfolderBase]: 15031/19844 cut-off events. [2023-11-06 22:40:30,485 INFO L125 PetriNetUnfolderBase]: For 810/810 co-relation queries the response was YES. [2023-11-06 22:40:30,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45598 conditions, 19844 events. 15031/19844 cut-off events. For 810/810 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 111297 event pairs, 9765 based on Foata normal form. 12/8831 useless extension candidates. Maximal degree in co-relation 45462. Up to 19747 conditions per place. [2023-11-06 22:40:30,616 INFO L140 encePairwiseOnDemand]: 871/874 looper letters, 99 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2023-11-06 22:40:30,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 112 transitions, 887 flow [2023-11-06 22:40:30,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1131 transitions. [2023-11-06 22:40:30,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43135011441647597 [2023-11-06 22:40:30,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1131 transitions. [2023-11-06 22:40:30,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1131 transitions. [2023-11-06 22:40:30,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:30,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1131 transitions. [2023-11-06 22:40:30,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:30,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:30,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 874.0) internal successors, (3496), 4 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:30,631 INFO L175 Difference]: Start difference. First operand has 87 places, 124 transitions, 783 flow. Second operand 3 states and 1131 transitions. [2023-11-06 22:40:30,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 112 transitions, 887 flow [2023-11-06 22:40:30,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 112 transitions, 823 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-11-06 22:40:30,648 INFO L231 Difference]: Finished difference. Result has 84 places, 112 transitions, 625 flow [2023-11-06 22:40:30,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=625, PETRI_PLACES=84, PETRI_TRANSITIONS=112} [2023-11-06 22:40:30,649 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 13 predicate places. [2023-11-06 22:40:30,649 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 112 transitions, 625 flow [2023-11-06 22:40:30,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:30,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:30,650 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-11-06 22:40:30,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:40:30,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:30,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash 661350869, now seen corresponding path program 1 times [2023-11-06 22:40:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:30,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921395321] [2023-11-06 22:40:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-06 22:40:30,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:30,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921395321] [2023-11-06 22:40:30,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921395321] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:30,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200579605] [2023-11-06 22:40:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:30,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:30,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:30,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:30,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:40:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:31,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:40:31,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:40:31,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:31,250 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:40:31,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200579605] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:31,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:31,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 13 [2023-11-06 22:40:31,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334477958] [2023-11-06 22:40:31,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:31,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:40:31,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:31,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:40:31,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:40:31,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 874 [2023-11-06 22:40:31,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 112 transitions, 625 flow. Second operand has 14 states, 14 states have (on average 338.2857142857143) internal successors, (4736), 14 states have internal predecessors, (4736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:31,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:31,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 874 [2023-11-06 22:40:31,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:38,811 INFO L124 PetriNetUnfolderBase]: 27507/35982 cut-off events. [2023-11-06 22:40:38,811 INFO L125 PetriNetUnfolderBase]: For 1252/1252 co-relation queries the response was YES. [2023-11-06 22:40:38,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83200 conditions, 35982 events. 27507/35982 cut-off events. For 1252/1252 co-relation queries the response was YES. Maximal size of possible extension queue 2282. Compared 209454 event pairs, 17566 based on Foata normal form. 1/15640 useless extension candidates. Maximal degree in co-relation 83028. Up to 19779 conditions per place. [2023-11-06 22:40:39,036 INFO L140 encePairwiseOnDemand]: 863/874 looper letters, 122 selfloop transitions, 36 changer transitions 0/161 dead transitions. [2023-11-06 22:40:39,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 161 transitions, 1090 flow [2023-11-06 22:40:39,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:40:39,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:40:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3488 transitions. [2023-11-06 22:40:39,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39908466819221966 [2023-11-06 22:40:39,051 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3488 transitions. [2023-11-06 22:40:39,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3488 transitions. [2023-11-06 22:40:39,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:39,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3488 transitions. [2023-11-06 22:40:39,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 348.8) internal successors, (3488), 10 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:39,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 874.0) internal successors, (9614), 11 states have internal predecessors, (9614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:39,080 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 874.0) internal successors, (9614), 11 states have internal predecessors, (9614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:39,081 INFO L175 Difference]: Start difference. First operand has 84 places, 112 transitions, 625 flow. Second operand 10 states and 3488 transitions. [2023-11-06 22:40:39,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 161 transitions, 1090 flow [2023-11-06 22:40:39,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 161 transitions, 1064 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:40:39,124 INFO L231 Difference]: Finished difference. Result has 91 places, 116 transitions, 707 flow [2023-11-06 22:40:39,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=707, PETRI_PLACES=91, PETRI_TRANSITIONS=116} [2023-11-06 22:40:39,125 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 20 predicate places. [2023-11-06 22:40:39,125 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 116 transitions, 707 flow [2023-11-06 22:40:39,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 338.2857142857143) internal successors, (4736), 14 states have internal predecessors, (4736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:39,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:39,127 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2023-11-06 22:40:39,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:40:39,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 22:40:39,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:39,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1897689904, now seen corresponding path program 2 times [2023-11-06 22:40:39,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:39,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245394788] [2023-11-06 22:40:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:39,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:40:39,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245394788] [2023-11-06 22:40:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245394788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:39,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195762311] [2023-11-06 22:40:39,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:40:39,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:39,515 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:39,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:40:39,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:40:39,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:40:39,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:40:39,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:40:39,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:40:39,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195762311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:39,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:40:39,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-11-06 22:40:39,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174619090] [2023-11-06 22:40:39,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:39,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:40:39,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:39,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:40:39,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:40:39,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 874 [2023-11-06 22:40:39,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 116 transitions, 707 flow. Second operand has 4 states, 4 states have (on average 353.25) internal successors, (1413), 4 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:39,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:39,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 874 [2023-11-06 22:40:39,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:45,109 INFO L124 PetriNetUnfolderBase]: 24745/32487 cut-off events. [2023-11-06 22:40:45,110 INFO L125 PetriNetUnfolderBase]: For 1464/1464 co-relation queries the response was YES. [2023-11-06 22:40:45,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74799 conditions, 32487 events. 24745/32487 cut-off events. For 1464/1464 co-relation queries the response was YES. Maximal size of possible extension queue 2072. Compared 189656 event pairs, 15876 based on Foata normal form. 1/14470 useless extension candidates. Maximal degree in co-relation 74630. Up to 32401 conditions per place. [2023-11-06 22:40:45,321 INFO L140 encePairwiseOnDemand]: 870/874 looper letters, 102 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2023-11-06 22:40:45,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 114 transitions, 913 flow [2023-11-06 22:40:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:40:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:40:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1464 transitions. [2023-11-06 22:40:45,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41876430205949655 [2023-11-06 22:40:45,327 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1464 transitions. [2023-11-06 22:40:45,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1464 transitions. [2023-11-06 22:40:45,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:45,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1464 transitions. [2023-11-06 22:40:45,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:45,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 874.0) internal successors, (4370), 5 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:45,337 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 874.0) internal successors, (4370), 5 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:45,337 INFO L175 Difference]: Start difference. First operand has 91 places, 116 transitions, 707 flow. Second operand 4 states and 1464 transitions. [2023-11-06 22:40:45,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 114 transitions, 913 flow [2023-11-06 22:40:45,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 114 transitions, 882 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-06 22:40:45,385 INFO L231 Difference]: Finished difference. Result has 89 places, 114 transitions, 678 flow [2023-11-06 22:40:45,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=678, PETRI_PLACES=89, PETRI_TRANSITIONS=114} [2023-11-06 22:40:45,387 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 18 predicate places. [2023-11-06 22:40:45,387 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 114 transitions, 678 flow [2023-11-06 22:40:45,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 353.25) internal successors, (1413), 4 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:45,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:45,388 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-11-06 22:40:45,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 22:40:45,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:45,594 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:45,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash 863941174, now seen corresponding path program 1 times [2023-11-06 22:40:45,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:45,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933353370] [2023-11-06 22:40:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:45,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:45,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933353370] [2023-11-06 22:40:45,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933353370] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:45,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259535758] [2023-11-06 22:40:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:45,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:45,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:45,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:45,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:40:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:46,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:40:46,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:46,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:46,159 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:46,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259535758] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:46,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:46,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:40:46,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019326131] [2023-11-06 22:40:46,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:46,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:40:46,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:46,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:40:46,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:40:46,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 874 [2023-11-06 22:40:46,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 114 transitions, 678 flow. Second operand has 13 states, 13 states have (on average 349.3076923076923) internal successors, (4541), 13 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:46,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:46,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 874 [2023-11-06 22:40:46,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:51,589 INFO L124 PetriNetUnfolderBase]: 24781/32553 cut-off events. [2023-11-06 22:40:51,589 INFO L125 PetriNetUnfolderBase]: For 1688/1688 co-relation queries the response was YES. [2023-11-06 22:40:51,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75126 conditions, 32553 events. 24781/32553 cut-off events. For 1688/1688 co-relation queries the response was YES. Maximal size of possible extension queue 2045. Compared 189626 event pairs, 15876 based on Foata normal form. 18/14547 useless extension candidates. Maximal degree in co-relation 74856. Up to 32421 conditions per place. [2023-11-06 22:40:51,801 INFO L140 encePairwiseOnDemand]: 864/874 looper letters, 59 selfloop transitions, 106 changer transitions 0/168 dead transitions. [2023-11-06 22:40:51,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 168 transitions, 1470 flow [2023-11-06 22:40:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:40:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:40:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4306 transitions. [2023-11-06 22:40:51,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41056445461479785 [2023-11-06 22:40:51,815 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4306 transitions. [2023-11-06 22:40:51,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4306 transitions. [2023-11-06 22:40:51,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:51,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4306 transitions. [2023-11-06 22:40:51,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 358.8333333333333) internal successors, (4306), 12 states have internal predecessors, (4306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:51,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 874.0) internal successors, (11362), 13 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:51,851 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 874.0) internal successors, (11362), 13 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:51,851 INFO L175 Difference]: Start difference. First operand has 89 places, 114 transitions, 678 flow. Second operand 12 states and 4306 transitions. [2023-11-06 22:40:51,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 168 transitions, 1470 flow [2023-11-06 22:40:51,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 168 transitions, 1454 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:40:51,927 INFO L231 Difference]: Finished difference. Result has 104 places, 168 transitions, 1460 flow [2023-11-06 22:40:51,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1460, PETRI_PLACES=104, PETRI_TRANSITIONS=168} [2023-11-06 22:40:51,928 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 33 predicate places. [2023-11-06 22:40:51,929 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 168 transitions, 1460 flow [2023-11-06 22:40:51,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 349.3076923076923) internal successors, (4541), 13 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:51,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:51,931 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2023-11-06 22:40:51,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:52,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:52,144 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:52,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash 908047936, now seen corresponding path program 1 times [2023-11-06 22:40:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:52,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949713339] [2023-11-06 22:40:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:52,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:52,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:52,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949713339] [2023-11-06 22:40:52,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949713339] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:52,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993729041] [2023-11-06 22:40:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:52,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:52,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:52,270 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:52,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:40:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:52,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:40:52,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:52,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:52,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993729041] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:52,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:52,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-06 22:40:52,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56298453] [2023-11-06 22:40:52,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:52,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:40:52,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:40:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:40:52,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 874 [2023-11-06 22:40:52,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 168 transitions, 1460 flow. Second operand has 9 states, 9 states have (on average 360.1111111111111) internal successors, (3241), 9 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:52,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:52,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 874 [2023-11-06 22:40:52,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:58,336 INFO L124 PetriNetUnfolderBase]: 24833/32665 cut-off events. [2023-11-06 22:40:58,336 INFO L125 PetriNetUnfolderBase]: For 1862/1862 co-relation queries the response was YES. [2023-11-06 22:40:58,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76089 conditions, 32665 events. 24833/32665 cut-off events. For 1862/1862 co-relation queries the response was YES. Maximal size of possible extension queue 2027. Compared 191158 event pairs, 15876 based on Foata normal form. 0/14641 useless extension candidates. Maximal degree in co-relation 75741. Up to 32440 conditions per place. [2023-11-06 22:40:58,577 INFO L140 encePairwiseOnDemand]: 870/874 looper letters, 201 selfloop transitions, 92 changer transitions 0/296 dead transitions. [2023-11-06 22:40:58,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 296 transitions, 3408 flow [2023-11-06 22:40:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:40:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:40:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2952 transitions. [2023-11-06 22:40:58,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42219679633867274 [2023-11-06 22:40:58,587 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2952 transitions. [2023-11-06 22:40:58,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2952 transitions. [2023-11-06 22:40:58,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:58,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2952 transitions. [2023-11-06 22:40:58,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 369.0) internal successors, (2952), 8 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:58,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 874.0) internal successors, (7866), 9 states have internal predecessors, (7866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:58,604 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 874.0) internal successors, (7866), 9 states have internal predecessors, (7866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:58,605 INFO L175 Difference]: Start difference. First operand has 104 places, 168 transitions, 1460 flow. Second operand 8 states and 2952 transitions. [2023-11-06 22:40:58,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 296 transitions, 3408 flow [2023-11-06 22:40:58,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 296 transitions, 2724 flow, removed 234 selfloop flow, removed 5 redundant places. [2023-11-06 22:40:58,740 INFO L231 Difference]: Finished difference. Result has 110 places, 220 transitions, 2002 flow [2023-11-06 22:40:58,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2002, PETRI_PLACES=110, PETRI_TRANSITIONS=220} [2023-11-06 22:40:58,742 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 39 predicate places. [2023-11-06 22:40:58,742 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 220 transitions, 2002 flow [2023-11-06 22:40:58,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 360.1111111111111) internal successors, (3241), 9 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:58,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:58,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:58,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:58,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2a3428-8cb0-4ef4-9ff9-dec28a9d8760/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:58,950 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:40:58,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1477726709, now seen corresponding path program 1 times [2023-11-06 22:40:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776174340] [2023-11-06 22:40:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:59,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776174340] [2023-11-06 22:40:59,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776174340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:59,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:59,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:40:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015980186] [2023-11-06 22:40:59,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:59,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:40:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:40:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:40:59,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 874 [2023-11-06 22:40:59,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 220 transitions, 2002 flow. Second operand has 4 states, 4 states have (on average 355.25) internal successors, (1421), 4 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:59,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:59,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 874 [2023-11-06 22:40:59,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:41:05,949 INFO L124 PetriNetUnfolderBase]: 27786/36719 cut-off events. [2023-11-06 22:41:05,950 INFO L125 PetriNetUnfolderBase]: For 2619/2619 co-relation queries the response was YES. [2023-11-06 22:41:06,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85532 conditions, 36719 events. 27786/36719 cut-off events. For 2619/2619 co-relation queries the response was YES. Maximal size of possible extension queue 2078. Compared 218184 event pairs, 15938 based on Foata normal form. 552/17498 useless extension candidates. Maximal degree in co-relation 85232. Up to 31615 conditions per place. [2023-11-06 22:41:06,247 INFO L140 encePairwiseOnDemand]: 871/874 looper letters, 266 selfloop transitions, 2 changer transitions 0/271 dead transitions. [2023-11-06 22:41:06,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 271 transitions, 2670 flow [2023-11-06 22:41:06,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:41:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1518 transitions. [2023-11-06 22:41:06,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2023-11-06 22:41:06,251 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1518 transitions. [2023-11-06 22:41:06,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1518 transitions. [2023-11-06 22:41:06,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:41:06,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1518 transitions. [2023-11-06 22:41:06,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 379.5) internal successors, (1518), 4 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:06,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 874.0) internal successors, (4370), 5 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:06,260 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 874.0) internal successors, (4370), 5 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:06,260 INFO L175 Difference]: Start difference. First operand has 110 places, 220 transitions, 2002 flow. Second operand 4 states and 1518 transitions. [2023-11-06 22:41:06,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 271 transitions, 2670 flow [2023-11-06 22:41:06,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 271 transitions, 2430 flow, removed 93 selfloop flow, removed 3 redundant places. [2023-11-06 22:41:06,381 INFO L231 Difference]: Finished difference. Result has 112 places, 221 transitions, 1775 flow [2023-11-06 22:41:06,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=874, PETRI_DIFFERENCE_MINUEND_FLOW=1762, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1775, PETRI_PLACES=112, PETRI_TRANSITIONS=221} [2023-11-06 22:41:06,382 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 41 predicate places. [2023-11-06 22:41:06,383 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 221 transitions, 1775 flow [2023-11-06 22:41:06,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 355.25) internal successors, (1421), 4 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:06,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:41:06,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:06,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:41:06,384 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-06 22:41:06,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:06,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1496397602, now seen corresponding path program 1 times [2023-11-06 22:41:06,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:06,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193181647] [2023-11-06 22:41:06,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:06,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:41:06,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:06,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193181647] [2023-11-06 22:41:06,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193181647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:06,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:06,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:41:06,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574797772] [2023-11-06 22:41:06,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:06,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:06,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:06,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:06,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:06,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 874 [2023-11-06 22:41:06,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 221 transitions, 1775 flow. Second operand has 4 states, 4 states have (on average 345.5) internal successors, (1382), 4 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:06,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:41:06,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 874 [2023-11-06 22:41:06,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand