./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-2.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_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/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_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/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_997bee3e-766e-4a3e-b424-f43d4d0ec499/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 792abe541332f7dc398bc25a6deb152789a85df6c33026f5ef70dc244a881f99 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:12,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:12,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:32:12,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:12,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:12,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:12,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:12,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:12,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:12,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:12,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:12,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:12,675 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:12,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:12,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:12,678 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:12,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:12,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:12,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:12,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:12,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:12,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:12,681 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:32:12,682 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:32:12,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:12,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:12,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:12,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:12,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:12,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:12,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:12,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:12,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:12,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:12,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:12,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:12,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:12,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:12,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:12,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:12,688 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:12,689 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_997bee3e-766e-4a3e-b424-f43d4d0ec499/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792abe541332f7dc398bc25a6deb152789a85df6c33026f5ef70dc244a881f99 [2023-11-06 22:32:13,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:13,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:13,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:13,064 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:13,065 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:13,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2023-11-06 22:32:16,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:16,383 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:16,383 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2023-11-06 22:32:16,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/data/7a81d2ed0/5abeb3ea4f684051bf9b5a4a4d3f886d/FLAG0ecd6bcc2 [2023-11-06 22:32:16,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/data/7a81d2ed0/5abeb3ea4f684051bf9b5a4a4d3f886d [2023-11-06 22:32:16,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:16,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:16,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:16,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:16,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:16,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c00a56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16, skipping insertion in model container [2023-11-06 22:32:16,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:16,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:16,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:16,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:16,697 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:16,697 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:16,706 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:16,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16 WrapperNode [2023-11-06 22:32:16,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:16,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:16,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:16,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:16,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,765 INFO L138 Inliner]: procedures = 21, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 164 [2023-11-06 22:32:16,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:16,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:16,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:16,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:16,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:16,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:16,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:16,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:16,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (1/1) ... [2023-11-06 22:32:16,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:16,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:16,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:16,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:16,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:16,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:32:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:32:16,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:32:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:32:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:32:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:32:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:32:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:32:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:32:16,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:32:16,913 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 22:32:17,083 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:17,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:17,524 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:17,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:17,629 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:17,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:17 BoogieIcfgContainer [2023-11-06 22:32:17,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:17,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:17,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:17,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:17,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:16" (1/3) ... [2023-11-06 22:32:17,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143e8698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:17, skipping insertion in model container [2023-11-06 22:32:17,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:16" (2/3) ... [2023-11-06 22:32:17,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143e8698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:17, skipping insertion in model container [2023-11-06 22:32:17,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:17" (3/3) ... [2023-11-06 22:32:17,643 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2023-11-06 22:32:17,652 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:32:17,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:17,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:32:17,662 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:32:17,750 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:32:17,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 121 transitions, 256 flow [2023-11-06 22:32:17,914 INFO L124 PetriNetUnfolderBase]: 2/119 cut-off events. [2023-11-06 22:32:17,914 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:32:17,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 119 events. 2/119 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-11-06 22:32:17,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 121 transitions, 256 flow [2023-11-06 22:32:17,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 97 transitions, 203 flow [2023-11-06 22:32:17,930 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:32:17,944 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 97 transitions, 203 flow [2023-11-06 22:32:17,947 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 97 transitions, 203 flow [2023-11-06 22:32:17,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 97 transitions, 203 flow [2023-11-06 22:32:17,990 INFO L124 PetriNetUnfolderBase]: 1/97 cut-off events. [2023-11-06 22:32:17,990 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:32:17,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 97 events. 1/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-11-06 22:32:17,995 INFO L119 LiptonReduction]: Number of co-enabled transitions 900 [2023-11-06 22:32:21,540 INFO L134 LiptonReduction]: Checked pairs total: 7270 [2023-11-06 22:32:21,540 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-11-06 22:32:21,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:21,581 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;@1adf5f23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:21,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-06 22:32:21,585 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:32:21,586 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-06 22:32:21,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:21,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:21,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:32:21,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:21,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:21,593 INFO L85 PathProgramCache]: Analyzing trace with hash 15005771, now seen corresponding path program 1 times [2023-11-06 22:32:21,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:21,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283248954] [2023-11-06 22:32:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:21,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:22,047 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 22:32:22,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:22,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283248954] [2023-11-06 22:32:22,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283248954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:22,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:22,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:32:22,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264171725] [2023-11-06 22:32:22,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:22,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:32:22,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:22,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:32:22,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:32:22,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 195 [2023-11-06 22:32:22,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 22:32:22,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:22,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 195 [2023-11-06 22:32:22,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:22,365 INFO L124 PetriNetUnfolderBase]: 269/534 cut-off events. [2023-11-06 22:32:22,366 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 22:32:22,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 534 events. 269/534 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2731 event pairs, 150 based on Foata normal form. 4/461 useless extension candidates. Maximal degree in co-relation 966. Up to 486 conditions per place. [2023-11-06 22:32:22,377 INFO L140 encePairwiseOnDemand]: 188/195 looper letters, 27 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2023-11-06 22:32:22,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 148 flow [2023-11-06 22:32:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:32:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:32:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2023-11-06 22:32:22,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606837606837607 [2023-11-06 22:32:22,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2023-11-06 22:32:22,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2023-11-06 22:32:22,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:22,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2023-11-06 22:32:22,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 22:32:22,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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 22:32:22,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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 22:32:22,432 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 75 flow. Second operand 3 states and 328 transitions. [2023-11-06 22:32:22,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 148 flow [2023-11-06 22:32:22,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:32:22,439 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 95 flow [2023-11-06 22:32:22,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2023-11-06 22:32:22,445 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-11-06 22:32:22,445 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 95 flow [2023-11-06 22:32:22,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 22:32:22,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:22,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:22,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:32:22,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:22,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:22,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1666367319, now seen corresponding path program 1 times [2023-11-06 22:32:22,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368920603] [2023-11-06 22:32:22,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:22,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:22,749 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 22:32:22,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:22,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368920603] [2023-11-06 22:32:22,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368920603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:22,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:22,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:22,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068660987] [2023-11-06 22:32:22,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:22,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:22,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:22,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 195 [2023-11-06 22:32:22,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 22:32:22,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:22,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 195 [2023-11-06 22:32:22,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:22,965 INFO L124 PetriNetUnfolderBase]: 289/576 cut-off events. [2023-11-06 22:32:22,965 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-11-06 22:32:22,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 576 events. 289/576 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2852 event pairs, 57 based on Foata normal form. 3/515 useless extension candidates. Maximal degree in co-relation 1101. Up to 443 conditions per place. [2023-11-06 22:32:22,976 INFO L140 encePairwiseOnDemand]: 188/195 looper letters, 34 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-11-06 22:32:22,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 212 flow [2023-11-06 22:32:22,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2023-11-06 22:32:22,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5435897435897435 [2023-11-06 22:32:22,981 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 424 transitions. [2023-11-06 22:32:22,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 424 transitions. [2023-11-06 22:32:22,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:22,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 424 transitions. [2023-11-06 22:32:22,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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 22:32:22,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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 22:32:22,990 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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 22:32:22,991 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 95 flow. Second operand 4 states and 424 transitions. [2023-11-06 22:32:22,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 212 flow [2023-11-06 22:32:22,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:32:22,995 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 127 flow [2023-11-06 22:32:22,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-11-06 22:32:22,996 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2023-11-06 22:32:22,996 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 127 flow [2023-11-06 22:32:22,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 22:32:22,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:22,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:22,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:32:22,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:22,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1666367320, now seen corresponding path program 1 times [2023-11-06 22:32:22,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:22,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607474403] [2023-11-06 22:32:23,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:23,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:23,186 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 22:32:23,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:23,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607474403] [2023-11-06 22:32:23,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607474403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:23,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:23,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:23,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261048486] [2023-11-06 22:32:23,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:23,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:23,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 195 [2023-11-06 22:32:23,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 22:32:23,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:23,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 195 [2023-11-06 22:32:23,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:23,387 INFO L124 PetriNetUnfolderBase]: 272/543 cut-off events. [2023-11-06 22:32:23,387 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2023-11-06 22:32:23,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 543 events. 272/543 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2634 event pairs, 57 based on Foata normal form. 12/493 useless extension candidates. Maximal degree in co-relation 1113. Up to 410 conditions per place. [2023-11-06 22:32:23,393 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 34 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-11-06 22:32:23,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 48 transitions, 227 flow [2023-11-06 22:32:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:23,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2023-11-06 22:32:23,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5397435897435897 [2023-11-06 22:32:23,396 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 421 transitions. [2023-11-06 22:32:23,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 421 transitions. [2023-11-06 22:32:23,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:23,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 421 transitions. [2023-11-06 22:32:23,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 22:32:23,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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 22:32:23,406 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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 22:32:23,407 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 127 flow. Second operand 4 states and 421 transitions. [2023-11-06 22:32:23,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 48 transitions, 227 flow [2023-11-06 22:32:23,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 225 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-06 22:32:23,412 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 132 flow [2023-11-06 22:32:23,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2023-11-06 22:32:23,414 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2023-11-06 22:32:23,414 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 132 flow [2023-11-06 22:32:23,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 22:32:23,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:23,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:23,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:32:23,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:23,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1666861141, now seen corresponding path program 1 times [2023-11-06 22:32:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:23,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794323512] [2023-11-06 22:32:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:23,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:23,607 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 22:32:23,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:23,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794323512] [2023-11-06 22:32:23,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794323512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:23,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:23,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:23,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790774477] [2023-11-06 22:32:23,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:23,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:23,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:23,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:23,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:23,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 195 [2023-11-06 22:32:23,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 22:32:23,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:23,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 195 [2023-11-06 22:32:23,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:23,772 INFO L124 PetriNetUnfolderBase]: 258/520 cut-off events. [2023-11-06 22:32:23,772 INFO L125 PetriNetUnfolderBase]: For 230/240 co-relation queries the response was YES. [2023-11-06 22:32:23,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 520 events. 258/520 cut-off events. For 230/240 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2383 event pairs, 103 based on Foata normal form. 24/497 useless extension candidates. Maximal degree in co-relation 911. Up to 412 conditions per place. [2023-11-06 22:32:23,777 INFO L140 encePairwiseOnDemand]: 188/195 looper letters, 33 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-11-06 22:32:23,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 236 flow [2023-11-06 22:32:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 420 transitions. [2023-11-06 22:32:23,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2023-11-06 22:32:23,780 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 420 transitions. [2023-11-06 22:32:23,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 420 transitions. [2023-11-06 22:32:23,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:23,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 420 transitions. [2023-11-06 22:32:23,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 22:32:23,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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 22:32:23,786 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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 22:32:23,787 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 132 flow. Second operand 4 states and 420 transitions. [2023-11-06 22:32:23,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 236 flow [2023-11-06 22:32:23,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:32:23,793 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 146 flow [2023-11-06 22:32:23,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2023-11-06 22:32:23,795 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-11-06 22:32:23,795 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 146 flow [2023-11-06 22:32:23,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 22:32:23,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:23,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:23,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:32:23,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:23,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:23,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1439222128, now seen corresponding path program 1 times [2023-11-06 22:32:23,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:23,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823203082] [2023-11-06 22:32:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:23,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:23,849 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 22:32:23,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:23,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823203082] [2023-11-06 22:32:23,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823203082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:23,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:23,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:32:23,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315981196] [2023-11-06 22:32:23,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:32:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:32:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:32:23,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 195 [2023-11-06 22:32:23,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:32:23,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:23,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 195 [2023-11-06 22:32:23,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:23,957 INFO L124 PetriNetUnfolderBase]: 161/339 cut-off events. [2023-11-06 22:32:23,957 INFO L125 PetriNetUnfolderBase]: For 212/220 co-relation queries the response was YES. [2023-11-06 22:32:23,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 339 events. 161/339 cut-off events. For 212/220 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1411 event pairs, 63 based on Foata normal form. 30/343 useless extension candidates. Maximal degree in co-relation 646. Up to 191 conditions per place. [2023-11-06 22:32:23,960 INFO L140 encePairwiseOnDemand]: 188/195 looper letters, 37 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2023-11-06 22:32:23,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 274 flow [2023-11-06 22:32:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:32:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:32:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-11-06 22:32:23,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2023-11-06 22:32:23,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-11-06 22:32:23,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-11-06 22:32:23,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:23,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-11-06 22:32:23,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 22:32:23,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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 22:32:23,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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 22:32:23,967 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 146 flow. Second operand 3 states and 330 transitions. [2023-11-06 22:32:23,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 274 flow [2023-11-06 22:32:23,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 270 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-11-06 22:32:23,971 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 161 flow [2023-11-06 22:32:23,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-11-06 22:32:23,972 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2023-11-06 22:32:23,972 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 161 flow [2023-11-06 22:32:23,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:32:23,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:23,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:23,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:32:23,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:23,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:23,974 INFO L85 PathProgramCache]: Analyzing trace with hash 336138597, now seen corresponding path program 1 times [2023-11-06 22:32:23,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:23,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938871944] [2023-11-06 22:32:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:23,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:24,065 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 22:32:24,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:24,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938871944] [2023-11-06 22:32:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938871944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:24,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:24,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:32:24,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067020125] [2023-11-06 22:32:24,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:24,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:32:24,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:32:24,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:32:24,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 195 [2023-11-06 22:32:24,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:24,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 195 [2023-11-06 22:32:24,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:24,248 INFO L124 PetriNetUnfolderBase]: 160/334 cut-off events. [2023-11-06 22:32:24,248 INFO L125 PetriNetUnfolderBase]: For 211/221 co-relation queries the response was YES. [2023-11-06 22:32:24,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 334 events. 160/334 cut-off events. For 211/221 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1448 event pairs, 51 based on Foata normal form. 10/324 useless extension candidates. Maximal degree in co-relation 670. Up to 110 conditions per place. [2023-11-06 22:32:24,251 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 45 selfloop transitions, 5 changer transitions 4/63 dead transitions. [2023-11-06 22:32:24,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 63 transitions, 347 flow [2023-11-06 22:32:24,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:32:24,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:32:24,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 702 transitions. [2023-11-06 22:32:24,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2023-11-06 22:32:24,255 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 702 transitions. [2023-11-06 22:32:24,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 702 transitions. [2023-11-06 22:32:24,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:24,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 702 transitions. [2023-11-06 22:32:24,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 100.28571428571429) internal successors, (702), 7 states have internal predecessors, (702), 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 22:32:24,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 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 22:32:24,263 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 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 22:32:24,263 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 161 flow. Second operand 7 states and 702 transitions. [2023-11-06 22:32:24,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 63 transitions, 347 flow [2023-11-06 22:32:24,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 343 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:32:24,266 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 164 flow [2023-11-06 22:32:24,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=164, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2023-11-06 22:32:24,267 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2023-11-06 22:32:24,268 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 164 flow [2023-11-06 22:32:24,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:24,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:24,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:32:24,269 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:24,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash 336138596, now seen corresponding path program 1 times [2023-11-06 22:32:24,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370911676] [2023-11-06 22:32:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:24,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:24,358 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 22:32:24,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:24,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370911676] [2023-11-06 22:32:24,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370911676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:24,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:24,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:32:24,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840364422] [2023-11-06 22:32:24,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:24,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:32:24,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:24,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:32:24,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:32:24,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 195 [2023-11-06 22:32:24,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:24,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 195 [2023-11-06 22:32:24,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:24,502 INFO L124 PetriNetUnfolderBase]: 148/308 cut-off events. [2023-11-06 22:32:24,502 INFO L125 PetriNetUnfolderBase]: For 236/248 co-relation queries the response was YES. [2023-11-06 22:32:24,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 308 events. 148/308 cut-off events. For 236/248 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1320 event pairs, 45 based on Foata normal form. 18/310 useless extension candidates. Maximal degree in co-relation 614. Up to 110 conditions per place. [2023-11-06 22:32:24,505 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 25 selfloop transitions, 3 changer transitions 21/58 dead transitions. [2023-11-06 22:32:24,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 58 transitions, 327 flow [2023-11-06 22:32:24,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:32:24,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:32:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 603 transitions. [2023-11-06 22:32:24,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5153846153846153 [2023-11-06 22:32:24,508 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 603 transitions. [2023-11-06 22:32:24,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 603 transitions. [2023-11-06 22:32:24,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:24,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 603 transitions. [2023-11-06 22:32:24,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 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 22:32:24,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 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 22:32:24,515 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 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 22:32:24,515 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 164 flow. Second operand 6 states and 603 transitions. [2023-11-06 22:32:24,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 58 transitions, 327 flow [2023-11-06 22:32:24,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:32:24,518 INFO L231 Difference]: Finished difference. Result has 51 places, 30 transitions, 134 flow [2023-11-06 22:32:24,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=51, PETRI_TRANSITIONS=30} [2023-11-06 22:32:24,519 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2023-11-06 22:32:24,519 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 30 transitions, 134 flow [2023-11-06 22:32:24,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:24,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:24,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:32:24,521 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:24,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:24,521 INFO L85 PathProgramCache]: Analyzing trace with hash 336153448, now seen corresponding path program 1 times [2023-11-06 22:32:24,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:24,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719736504] [2023-11-06 22:32:24,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:24,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:24,607 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 22:32:24,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:24,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719736504] [2023-11-06 22:32:24,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719736504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:24,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:24,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:32:24,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258930552] [2023-11-06 22:32:24,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:24,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:32:24,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:24,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:32:24,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:32:24,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 195 [2023-11-06 22:32:24,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 30 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:24,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 195 [2023-11-06 22:32:24,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:24,721 INFO L124 PetriNetUnfolderBase]: 102/210 cut-off events. [2023-11-06 22:32:24,721 INFO L125 PetriNetUnfolderBase]: For 176/184 co-relation queries the response was YES. [2023-11-06 22:32:24,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 210 events. 102/210 cut-off events. For 176/184 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 799 event pairs, 43 based on Foata normal form. 12/207 useless extension candidates. Maximal degree in co-relation 482. Up to 110 conditions per place. [2023-11-06 22:32:24,724 INFO L140 encePairwiseOnDemand]: 191/195 looper letters, 28 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2023-11-06 22:32:24,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 224 flow [2023-11-06 22:32:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:32:24,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:32:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2023-11-06 22:32:24,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-11-06 22:32:24,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 494 transitions. [2023-11-06 22:32:24,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 494 transitions. [2023-11-06 22:32:24,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:24,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 494 transitions. [2023-11-06 22:32:24,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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 22:32:24,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 22:32:24,734 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 22:32:24,734 INFO L175 Difference]: Start difference. First operand has 51 places, 30 transitions, 134 flow. Second operand 5 states and 494 transitions. [2023-11-06 22:32:24,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 224 flow [2023-11-06 22:32:24,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 211 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-06 22:32:24,737 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 121 flow [2023-11-06 22:32:24,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-06 22:32:24,738 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-11-06 22:32:24,738 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 121 flow [2023-11-06 22:32:24,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:24,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:24,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:32:24,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-06 22:32:24,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash 336153449, now seen corresponding path program 1 times [2023-11-06 22:32:24,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:24,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773126896] [2023-11-06 22:32:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:24,828 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 22:32:24,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:24,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773126896] [2023-11-06 22:32:24,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773126896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:24,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:24,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:32:24,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920705215] [2023-11-06 22:32:24,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:24,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:32:24,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:24,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:32:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:32:24,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 195 [2023-11-06 22:32:24,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:24,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 195 [2023-11-06 22:32:24,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:24,922 INFO L124 PetriNetUnfolderBase]: 98/202 cut-off events. [2023-11-06 22:32:24,922 INFO L125 PetriNetUnfolderBase]: For 118/126 co-relation queries the response was YES. [2023-11-06 22:32:24,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 202 events. 98/202 cut-off events. For 118/126 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 782 event pairs, 41 based on Foata normal form. 12/199 useless extension candidates. Maximal degree in co-relation 456. Up to 110 conditions per place. [2023-11-06 22:32:24,923 INFO L140 encePairwiseOnDemand]: 191/195 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2023-11-06 22:32:24,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 211 flow [2023-11-06 22:32:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:32:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:32:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2023-11-06 22:32:24,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056410256410256 [2023-11-06 22:32:24,926 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 493 transitions. [2023-11-06 22:32:24,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 493 transitions. [2023-11-06 22:32:24,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:24,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 493 transitions. [2023-11-06 22:32:24,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.6) internal successors, (493), 5 states have internal predecessors, (493), 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 22:32:24,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 22:32:24,932 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 22:32:24,932 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 121 flow. Second operand 5 states and 493 transitions. [2023-11-06 22:32:24,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 211 flow [2023-11-06 22:32:24,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:32:24,934 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-11-06 22:32:24,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-11-06 22:32:24,935 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-11-06 22:32:24,935 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-11-06 22:32:24,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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 22:32:24,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-06 22:32:24,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-06 22:32:24,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-06 22:32:24,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-06 22:32:24,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-11-06 22:32:24,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-11-06 22:32:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-06 22:32:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-06 22:32:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-11-06 22:32:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-11-06 22:32:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-11-06 22:32:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-11-06 22:32:24,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-06 22:32:24,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-06 22:32:24,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-06 22:32:24,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-06 22:32:24,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-06 22:32:24,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-06 22:32:24,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:32:24,942 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:24,947 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:32:24,948 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:32:24,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:24 BasicIcfg [2023-11-06 22:32:24,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:32:24,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:32:24,952 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:32:24,952 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:32:24,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:17" (3/4) ... [2023-11-06 22:32:24,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:32:24,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:32:24,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:32:24,962 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-06 22:32:24,963 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:32:24,963 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:32:24,963 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:32:25,015 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:32:25,015 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:32:25,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:32:25,016 INFO L158 Benchmark]: Toolchain (without parser) took 8603.33ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 151.6MB in the beginning and 83.8MB in the end (delta: 67.7MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,016 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 92.2MB in the beginning and 92.1MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:25,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.91ms. Allocated memory is still 190.8MB. Free memory was 151.6MB in the beginning and 139.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.92ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 137.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,018 INFO L158 Benchmark]: Boogie Preprocessor took 35.28ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 136.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,018 INFO L158 Benchmark]: RCFGBuilder took 829.23ms. Allocated memory is still 190.8MB. Free memory was 136.2MB in the beginning and 114.6MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,018 INFO L158 Benchmark]: TraceAbstraction took 7316.42ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 113.8MB in the beginning and 87.0MB in the end (delta: 26.8MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,019 INFO L158 Benchmark]: Witness Printer took 63.86ms. Allocated memory is still 230.7MB. Free memory was 87.0MB in the beginning and 83.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:25,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 92.2MB in the beginning and 92.1MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.91ms. Allocated memory is still 190.8MB. Free memory was 151.6MB in the beginning and 139.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.92ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 137.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.28ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 136.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 829.23ms. Allocated memory is still 190.8MB. Free memory was 136.2MB in the beginning and 114.6MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7316.42ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 113.8MB in the beginning and 87.0MB in the end (delta: 26.8MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Witness Printer took 63.86ms. Allocated memory is still 230.7MB. Free memory was 87.0MB in the beginning and 83.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 103 PlacesBefore, 40 PlacesAfterwards, 97 TransitionsBefore, 33 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 7270 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3534, independent: 3153, independent conditional: 0, independent unconditional: 3153, dependent: 381, dependent conditional: 0, dependent unconditional: 381, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 486, independent conditional: 0, independent unconditional: 486, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3534, independent: 2667, independent conditional: 0, independent unconditional: 2667, dependent: 348, dependent conditional: 0, dependent unconditional: 348, unknown: 519, unknown conditional: 0, unknown unconditional: 519] , Statistics on independence cache: Total cache size (in pairs): 201, Positive cache size: 175, Positive conditional cache size: 0, Positive unconditional cache size: 175, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 154 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 306 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 763 IncrementalHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 21 mSDtfsCounter, 763 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:32:25,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_997bee3e-766e-4a3e-b424-f43d4d0ec499/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE