./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef62179d17d90afe74c7b4fe8189ca3bb011e55daf3a169b42e4b3589691fc53 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:56,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:56,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:08:56,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:56,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:56,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:56,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:56,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:56,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:56,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:56,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:56,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:56,590 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:56,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:56,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:56,593 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:56,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:56,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:56,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:56,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:56,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:56,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:56,596 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:08:56,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:08:56,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:56,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:56,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:56,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:56,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:56,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:56,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:56,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:56,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:56,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:56,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:56,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:56,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:56,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:56,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:56,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:56,603 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:56,603 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_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef62179d17d90afe74c7b4fe8189ca3bb011e55daf3a169b42e4b3589691fc53 [2023-11-12 02:08:56,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:56,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:56,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:56,921 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:56,921 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:56,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-12 02:08:59,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:00,076 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:00,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2023-11-12 02:09:00,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/data/edcf67015/57bcb4de9f864fcdb7d60878271099b7/FLAG7c6ab150b [2023-11-12 02:09:00,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/data/edcf67015/57bcb4de9f864fcdb7d60878271099b7 [2023-11-12 02:09:00,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:00,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:00,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:00,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:00,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:00,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d753aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00, skipping insertion in model container [2023-11-12 02:09:00,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,150 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:00,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:00,400 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:00,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:00,433 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:00,433 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:00,442 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:00,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00 WrapperNode [2023-11-12 02:09:00,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:00,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:00,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:00,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:00,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,497 INFO L138 Inliner]: procedures = 23, calls = 40, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 311 [2023-11-12 02:09:00,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:00,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:00,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:00,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:00,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:00,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:00,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:00,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:00,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (1/1) ... [2023-11-12 02:09:00,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:00,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:00,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:00,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce4d22e5-2082-45ff-a233-a9601ee1b56f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:09:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:09:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:09:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:09:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:09:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:09:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:09:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:09:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:09:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:09:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:09:00,622 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:09:00,744 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:00,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:01,362 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:02,887 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:02,887 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:09:02,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:02 BoogieIcfgContainer [2023-11-12 02:09:02,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:02,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:02,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:02,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:02,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:00" (1/3) ... [2023-11-12 02:09:02,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1b2f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:02, skipping insertion in model container [2023-11-12 02:09:02,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:00" (2/3) ... [2023-11-12 02:09:02,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1b2f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:02, skipping insertion in model container [2023-11-12 02:09:02,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:02" (3/3) ... [2023-11-12 02:09:02,899 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2023-11-12 02:09:02,908 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:09:02,918 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:02,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-12 02:09:02,918 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:09:03,461 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 02:09:03,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 156 transitions, 333 flow [2023-11-12 02:09:03,603 INFO L124 PetriNetUnfolderBase]: 1/153 cut-off events. [2023-11-12 02:09:03,603 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:09:03,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 1/153 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 226 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-12 02:09:03,607 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 156 transitions, 333 flow [2023-11-12 02:09:03,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 129 transitions, 273 flow [2023-11-12 02:09:03,617 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:09:03,626 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 129 transitions, 273 flow [2023-11-12 02:09:03,629 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 129 transitions, 273 flow [2023-11-12 02:09:03,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 129 transitions, 273 flow [2023-11-12 02:09:03,698 INFO L124 PetriNetUnfolderBase]: 0/129 cut-off events. [2023-11-12 02:09:03,699 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:09:03,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 129 events. 0/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 215 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-12 02:09:03,702 INFO L119 LiptonReduction]: Number of co-enabled transitions 2688 [2023-11-12 02:09:51,170 INFO L134 LiptonReduction]: Checked pairs total: 3668 [2023-11-12 02:09:51,170 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-11-12 02:09:51,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:09:51,194 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ca0eeb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:09:51,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-11-12 02:09:51,197 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:09:51,198 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-12 02:09:51,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:09:51,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:51,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:09:51,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-12 02:09:51,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1364463, now seen corresponding path program 1 times [2023-11-12 02:09:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553368230] [2023-11-12 02:09:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:51,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:51,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:51,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553368230] [2023-11-12 02:09:51,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553368230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:51,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:51,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:09:51,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441545410] [2023-11-12 02:09:51,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:51,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:09:51,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:51,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:09:51,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:51,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 271 [2023-11-12 02:09:51,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-11-12 02:09:51,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:51,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 271 [2023-11-12 02:09:51,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:53,947 INFO L124 PetriNetUnfolderBase]: 4173/6174 cut-off events. [2023-11-12 02:09:53,947 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2023-11-12 02:09:53,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12635 conditions, 6174 events. 4173/6174 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 35864 event pairs, 4173 based on Foata normal form. 0/1792 useless extension candidates. Maximal degree in co-relation 11444. Up to 6174 conditions per place. [2023-11-12 02:09:54,027 INFO L140 encePairwiseOnDemand]: 256/271 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-11-12 02:09:54,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 159 flow [2023-11-12 02:09:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:09:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-11-12 02:09:54,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45633456334563344 [2023-11-12 02:09:54,054 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-11-12 02:09:54,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-11-12 02:09:54,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:54,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-11-12 02:09:54,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2023-11-12 02:09:54,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 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) [2023-11-12 02:09:54,079 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 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) [2023-11-12 02:09:54,082 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 3 states and 371 transitions. [2023-11-12 02:09:54,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 159 flow [2023-11-12 02:09:54,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:09:54,129 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 80 flow [2023-11-12 02:09:54,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-11-12 02:09:54,136 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-11-12 02:09:54,136 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 80 flow [2023-11-12 02:09:54,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-11-12 02:09:54,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:54,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:09:54,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:09:54,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-12 02:09:54,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:54,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1364469, now seen corresponding path program 1 times [2023-11-12 02:09:54,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:54,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293094816] [2023-11-12 02:09:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:54,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:54,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:54,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293094816] [2023-11-12 02:09:54,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293094816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:54,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:54,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:09:54,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820441798] [2023-11-12 02:09:54,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:54,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:09:54,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:54,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:09:54,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:54,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 271 [2023-11-12 02:09:54,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-11-12 02:09:54,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:54,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 271 [2023-11-12 02:09:54,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:56,125 INFO L124 PetriNetUnfolderBase]: 3293/4898 cut-off events. [2023-11-12 02:09:56,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:09:56,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9937 conditions, 4898 events. 3293/4898 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 27465 event pairs, 3293 based on Foata normal form. 0/1486 useless extension candidates. Maximal degree in co-relation 9931. Up to 4898 conditions per place. [2023-11-12 02:09:56,168 INFO L140 encePairwiseOnDemand]: 268/271 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-11-12 02:09:56,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 144 flow [2023-11-12 02:09:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:56,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:09:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-11-12 02:09:56,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43911439114391143 [2023-11-12 02:09:56,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-11-12 02:09:56,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-11-12 02:09:56,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:56,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-11-12 02:09:56,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2023-11-12 02:09:56,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 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) [2023-11-12 02:09:56,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 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) [2023-11-12 02:09:56,179 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 80 flow. Second operand 3 states and 357 transitions. [2023-11-12 02:09:56,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 144 flow [2023-11-12 02:09:56,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:09:56,182 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 77 flow [2023-11-12 02:09:56,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-11-12 02:09:56,183 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-11-12 02:09:56,183 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 77 flow [2023-11-12 02:09:56,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-11-12 02:09:56,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:56,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:09:56,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:09:56,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-12 02:09:56,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:56,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1364464, now seen corresponding path program 1 times [2023-11-12 02:09:56,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:56,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552132111] [2023-11-12 02:09:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:56,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat