./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-subst.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_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/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_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/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_6473c729-4f02-4850-abec-78e9ef79028c/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 be2a0d1eee532c8ad9f827ec91fa18dbacb100bdaebd8afe9a7f9b56098458ea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:40:28,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:40:28,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:40:28,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:40:28,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:40:28,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:40:28,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:40:28,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:40:28,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:40:28,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:40:28,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:40:28,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:40:28,679 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:40:28,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:40:28,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:40:28,682 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:40:28,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:40:28,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:40:28,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:40:28,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:40:28,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:40:28,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:40:28,685 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:40:28,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:40:28,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:40:28,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:40:28,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:40:28,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:40:28,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:40:28,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:40:28,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:40:28,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:40:28,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:40:28,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:40:28,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:40:28,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:40:28,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:40:28,692 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:40:28,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:40:28,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:40:28,693 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:40:28,693 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_6473c729-4f02-4850-abec-78e9ef79028c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be2a0d1eee532c8ad9f827ec91fa18dbacb100bdaebd8afe9a7f9b56098458ea [2023-11-06 22:40:28,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:40:28,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:40:28,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:40:28,994 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:40:28,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:40:28,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2023-11-06 22:40:32,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:40:32,522 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:40:32,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2023-11-06 22:40:32,533 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/data/408e56ceb/7505a5d9449c42ab9b1079365d3741e5/FLAG7ba9218ec [2023-11-06 22:40:32,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/data/408e56ceb/7505a5d9449c42ab9b1079365d3741e5 [2023-11-06 22:40:32,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:40:32,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:40:32,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:40:32,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:40:32,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:40:32,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32396b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32, skipping insertion in model container [2023-11-06 22:40:32,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,604 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:40:32,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:40:32,849 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:40:32,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:40:32,897 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:40:32,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32 WrapperNode [2023-11-06 22:40:32,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:40:32,899 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:40:32,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:40:32,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:40:32,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,979 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 249 [2023-11-06 22:40:32,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:40:32,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:40:32,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:40:32,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:40:32,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:32,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:33,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:33,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:33,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:33,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:33,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:40:33,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:40:33,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:40:33,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:40:33,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (1/1) ... [2023-11-06 22:40:33,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:40:33,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:33,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:33,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:40:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:40:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:40:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:40:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:40:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:40:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:40:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:40:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:40:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:40:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:40:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:40:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:40:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:40:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:40:33,118 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 22:40:33,314 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:40:33,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:40:33,940 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:40:33,956 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:40:33,956 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:40:33,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:33 BoogieIcfgContainer [2023-11-06 22:40:33,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:40:33,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:40:33,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:40:33,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:40:33,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:40:32" (1/3) ... [2023-11-06 22:40:33,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d9bae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:33, skipping insertion in model container [2023-11-06 22:40:33,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:32" (2/3) ... [2023-11-06 22:40:33,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d9bae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:33, skipping insertion in model container [2023-11-06 22:40:33,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:33" (3/3) ... [2023-11-06 22:40:33,970 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2023-11-06 22:40:33,980 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:40:33,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:40:33,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 22:40:33,990 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:40:34,166 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:40:34,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 329 transitions, 679 flow [2023-11-06 22:40:34,385 INFO L124 PetriNetUnfolderBase]: 26/326 cut-off events. [2023-11-06 22:40:34,386 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:40:34,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 326 events. 26/326 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 882 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2023-11-06 22:40:34,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 313 places, 329 transitions, 679 flow [2023-11-06 22:40:34,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 280 places, 294 transitions, 603 flow [2023-11-06 22:40:34,412 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:40:34,422 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 294 transitions, 603 flow [2023-11-06 22:40:34,425 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 294 transitions, 603 flow [2023-11-06 22:40:34,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 294 transitions, 603 flow [2023-11-06 22:40:34,510 INFO L124 PetriNetUnfolderBase]: 24/294 cut-off events. [2023-11-06 22:40:34,510 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:40:34,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 294 events. 24/294 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 873 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2023-11-06 22:40:34,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 36288 [2023-11-06 22:40:54,725 INFO L134 LiptonReduction]: Checked pairs total: 35316 [2023-11-06 22:40:54,725 INFO L136 LiptonReduction]: Total number of compositions: 403 [2023-11-06 22:40:54,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:40:54,749 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;@2bb10c60, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:40:54,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-06 22:40:54,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:40:54,752 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-06 22:40:54,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:40:54,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:54,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:54,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:54,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1390570, now seen corresponding path program 1 times [2023-11-06 22:40:54,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:54,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132421365] [2023-11-06 22:40:54,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:54,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:54,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:54,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132421365] [2023-11-06 22:40:54,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132421365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:54,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:54,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:54,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333666351] [2023-11-06 22:40:54,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:54,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:40:54,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:40:54,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:40:54,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 732 [2023-11-06 22:40:54,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 79 flow. Second operand has 2 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:54,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:54,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 732 [2023-11-06 22:40:54,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:55,520 INFO L124 PetriNetUnfolderBase]: 1125/1726 cut-off events. [2023-11-06 22:40:55,520 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2023-11-06 22:40:55,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3585 conditions, 1726 events. 1125/1726 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 8149 event pairs, 1125 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 3104. Up to 1727 conditions per place. [2023-11-06 22:40:55,539 INFO L140 encePairwiseOnDemand]: 726/732 looper letters, 26 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-11-06 22:40:55,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 119 flow [2023-11-06 22:40:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:40:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:40:55,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 660 transitions. [2023-11-06 22:40:55,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45081967213114754 [2023-11-06 22:40:55,566 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 660 transitions. [2023-11-06 22:40:55,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 660 transitions. [2023-11-06 22:40:55,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:55,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 660 transitions. [2023-11-06 22:40:55,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 330.0) internal successors, (660), 2 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:55,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 732.0) internal successors, (2196), 3 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:55,591 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 732.0) internal successors, (2196), 3 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:55,593 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 79 flow. Second operand 2 states and 660 transitions. [2023-11-06 22:40:55,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 119 flow [2023-11-06 22:40:55,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:40:55,601 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 58 flow [2023-11-06 22:40:55,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-11-06 22:40:55,608 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -10 predicate places. [2023-11-06 22:40:55,608 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 58 flow [2023-11-06 22:40:55,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:55,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:55,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:55,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:40:55,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:55,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1390652, now seen corresponding path program 1 times [2023-11-06 22:40:55,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:55,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760096055] [2023-11-06 22:40:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:55,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:55,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760096055] [2023-11-06 22:40:55,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760096055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:55,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:55,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:55,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289752260] [2023-11-06 22:40:55,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:55,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:55,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:55,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:55,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:55,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 732 [2023-11-06 22:40:55,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:55,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:55,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 732 [2023-11-06 22:40:55,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:56,287 INFO L124 PetriNetUnfolderBase]: 793/1234 cut-off events. [2023-11-06 22:40:56,287 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-06 22:40:56,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2537 conditions, 1234 events. 793/1234 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 5480 event pairs, 793 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 2534. Up to 1234 conditions per place. [2023-11-06 22:40:56,297 INFO L140 encePairwiseOnDemand]: 729/732 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-11-06 22:40:56,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 102 flow [2023-11-06 22:40:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 962 transitions. [2023-11-06 22:40:56,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43806921675774135 [2023-11-06 22:40:56,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 962 transitions. [2023-11-06 22:40:56,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 962 transitions. [2023-11-06 22:40:56,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:56,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 962 transitions. [2023-11-06 22:40:56,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,318 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 58 flow. Second operand 3 states and 962 transitions. [2023-11-06 22:40:56,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 102 flow [2023-11-06 22:40:56,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:40:56,320 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 56 flow [2023-11-06 22:40:56,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2023-11-06 22:40:56,321 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -10 predicate places. [2023-11-06 22:40:56,322 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 56 flow [2023-11-06 22:40:56,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:56,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:56,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:40:56,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:56,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1390650, now seen corresponding path program 1 times [2023-11-06 22:40:56,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:56,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085119220] [2023-11-06 22:40:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:56,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:56,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:56,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085119220] [2023-11-06 22:40:56,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085119220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:56,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:56,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:56,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263877337] [2023-11-06 22:40:56,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:56,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:56,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:56,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:56,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:56,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 732 [2023-11-06 22:40:56,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:56,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 732 [2023-11-06 22:40:56,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:56,747 INFO L124 PetriNetUnfolderBase]: 527/836 cut-off events. [2023-11-06 22:40:56,747 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-06 22:40:56,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 836 events. 527/836 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3473 event pairs, 527 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 1718. Up to 836 conditions per place. [2023-11-06 22:40:56,754 INFO L140 encePairwiseOnDemand]: 729/732 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-11-06 22:40:56,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 96 flow [2023-11-06 22:40:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2023-11-06 22:40:56,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4371584699453552 [2023-11-06 22:40:56,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2023-11-06 22:40:56,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2023-11-06 22:40:56,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:56,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2023-11-06 22:40:56,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,773 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 56 flow. Second operand 3 states and 960 transitions. [2023-11-06 22:40:56,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 96 flow [2023-11-06 22:40:56,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:56,774 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 53 flow [2023-11-06 22:40:56,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2023-11-06 22:40:56,776 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2023-11-06 22:40:56,776 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 53 flow [2023-11-06 22:40:56,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:56,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:56,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:40:56,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:56,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1390649, now seen corresponding path program 1 times [2023-11-06 22:40:56,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:56,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089122645] [2023-11-06 22:40:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:56,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:56,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:56,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089122645] [2023-11-06 22:40:56,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089122645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:56,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:56,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:56,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692113192] [2023-11-06 22:40:56,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:56,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:56,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:56,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:56,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 732 [2023-11-06 22:40:56,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:56,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:56,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 732 [2023-11-06 22:40:56,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:57,020 INFO L124 PetriNetUnfolderBase]: 315/516 cut-off events. [2023-11-06 22:40:57,021 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-06 22:40:57,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 516 events. 315/516 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1949 event pairs, 315 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 1062. Up to 516 conditions per place. [2023-11-06 22:40:57,025 INFO L140 encePairwiseOnDemand]: 729/732 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-11-06 22:40:57,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 20 transitions, 89 flow [2023-11-06 22:40:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2023-11-06 22:40:57,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43624772313296906 [2023-11-06 22:40:57,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2023-11-06 22:40:57,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2023-11-06 22:40:57,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:57,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2023-11-06 22:40:57,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,043 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 53 flow. Second operand 3 states and 958 transitions. [2023-11-06 22:40:57,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 20 transitions, 89 flow [2023-11-06 22:40:57,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:57,044 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 50 flow [2023-11-06 22:40:57,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-11-06 22:40:57,045 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2023-11-06 22:40:57,046 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 50 flow [2023-11-06 22:40:57,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:57,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:40:57,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:40:57,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:57,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1390588, now seen corresponding path program 1 times [2023-11-06 22:40:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:57,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130004974] [2023-11-06 22:40:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:57,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:57,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:57,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130004974] [2023-11-06 22:40:57,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130004974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:57,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:57,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648329615] [2023-11-06 22:40:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:57,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:57,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:57,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:57,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:57,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 732 [2023-11-06 22:40:57,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:57,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 732 [2023-11-06 22:40:57,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:57,224 INFO L124 PetriNetUnfolderBase]: 173/298 cut-off events. [2023-11-06 22:40:57,224 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 22:40:57,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1005 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 618. Up to 298 conditions per place. [2023-11-06 22:40:57,227 INFO L140 encePairwiseOnDemand]: 729/732 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-11-06 22:40:57,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 82 flow [2023-11-06 22:40:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 956 transitions. [2023-11-06 22:40:57,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4353369763205829 [2023-11-06 22:40:57,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 956 transitions. [2023-11-06 22:40:57,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 956 transitions. [2023-11-06 22:40:57,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:57,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 956 transitions. [2023-11-06 22:40:57,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,245 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 50 flow. Second operand 3 states and 956 transitions. [2023-11-06 22:40:57,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 82 flow [2023-11-06 22:40:57,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:57,246 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 47 flow [2023-11-06 22:40:57,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2023-11-06 22:40:57,247 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2023-11-06 22:40:57,248 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 47 flow [2023-11-06 22:40:57,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:57,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:40:57,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:40:57,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:57,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1336338867, now seen corresponding path program 1 times [2023-11-06 22:40:57,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:57,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188280995] [2023-11-06 22:40:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:57,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:57,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:57,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188280995] [2023-11-06 22:40:57,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188280995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:57,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:57,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:57,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584242927] [2023-11-06 22:40:57,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:57,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:57,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:57,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:57,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:57,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 732 [2023-11-06 22:40:57,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:57,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 732 [2023-11-06 22:40:57,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:57,387 INFO L124 PetriNetUnfolderBase]: 93/170 cut-off events. [2023-11-06 22:40:57,387 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:40:57,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 471 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 359. Up to 170 conditions per place. [2023-11-06 22:40:57,389 INFO L140 encePairwiseOnDemand]: 729/732 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-11-06 22:40:57,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 16 transitions, 75 flow [2023-11-06 22:40:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:57,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2023-11-06 22:40:57,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344262295081967 [2023-11-06 22:40:57,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2023-11-06 22:40:57,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2023-11-06 22:40:57,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:57,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2023-11-06 22:40:57,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,407 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 47 flow. Second operand 3 states and 954 transitions. [2023-11-06 22:40:57,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 16 transitions, 75 flow [2023-11-06 22:40:57,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:57,408 INFO L231 Difference]: Finished difference. Result has 28 places, 16 transitions, 44 flow [2023-11-06 22:40:57,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2023-11-06 22:40:57,409 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2023-11-06 22:40:57,409 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 44 flow [2023-11-06 22:40:57,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:57,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:40:57,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:40:57,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-06 22:40:57,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1336338792, now seen corresponding path program 1 times [2023-11-06 22:40:57,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:57,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980789238] [2023-11-06 22:40:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:57,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:57,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:57,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980789238] [2023-11-06 22:40:57,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980789238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:57,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:57,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:57,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039428458] [2023-11-06 22:40:57,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:57,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:57,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:57,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:57,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:57,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 732 [2023-11-06 22:40:57,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:57,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 732 [2023-11-06 22:40:57,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:57,517 INFO L124 PetriNetUnfolderBase]: 37/78 cut-off events. [2023-11-06 22:40:57,518 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:40:57,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 172. Up to 78 conditions per place. [2023-11-06 22:40:57,518 INFO L140 encePairwiseOnDemand]: 729/732 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-11-06 22:40:57,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 14 transitions, 68 flow [2023-11-06 22:40:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:57,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2023-11-06 22:40:57,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335154826958106 [2023-11-06 22:40:57,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2023-11-06 22:40:57,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2023-11-06 22:40:57,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:57,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2023-11-06 22:40:57,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,537 INFO L175 Difference]: Start difference. First operand has 28 places, 16 transitions, 44 flow. Second operand 3 states and 952 transitions. [2023-11-06 22:40:57,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 14 transitions, 68 flow [2023-11-06 22:40:57,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:57,538 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-11-06 22:40:57,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-11-06 22:40:57,539 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2023-11-06 22:40:57,539 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-11-06 22:40:57,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:57,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-11-06 22:40:57,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-11-06 22:40:57,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-11-06 22:40:57,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-11-06 22:40:57,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-11-06 22:40:57,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-11-06 22:40:57,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-11-06 22:40:57,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-11-06 22:40:57,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-11-06 22:40:57,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-11-06 22:40:57,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-11-06 22:40:57,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-11-06 22:40:57,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-11-06 22:40:57,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-11-06 22:40:57,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-11-06 22:40:57,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-11-06 22:40:57,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-11-06 22:40:57,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-11-06 22:40:57,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2023-11-06 22:40:57,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2023-11-06 22:40:57,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2023-11-06 22:40:57,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2023-11-06 22:40:57,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2023-11-06 22:40:57,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2023-11-06 22:40:57,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-11-06 22:40:57,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-11-06 22:40:57,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-11-06 22:40:57,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-11-06 22:40:57,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-11-06 22:40:57,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-11-06 22:40:57,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-11-06 22:40:57,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-11-06 22:40:57,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-11-06 22:40:57,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-11-06 22:40:57,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-11-06 22:40:57,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-11-06 22:40:57,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-11-06 22:40:57,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-11-06 22:40:57,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-11-06 22:40:57,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:40:57,553 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:57,559 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:40:57,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:40:57,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:40:57 BasicIcfg [2023-11-06 22:40:57,564 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:40:57,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:40:57,565 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:40:57,565 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:40:57,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:33" (3/4) ... [2023-11-06 22:40:57,567 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:40:57,572 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:40:57,572 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:40:57,572 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-06 22:40:57,578 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-06 22:40:57,578 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:40:57,579 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:40:57,579 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:40:57,634 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:40:57,635 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:40:57,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:40:57,635 INFO L158 Benchmark]: Toolchain (without parser) took 25080.22ms. Allocated memory was 159.4MB in the beginning and 260.0MB in the end (delta: 100.7MB). Free memory was 112.2MB in the beginning and 88.7MB in the end (delta: 23.5MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,636 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 69.8MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:40:57,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.96ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 100.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.72ms. Allocated memory is still 159.4MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,637 INFO L158 Benchmark]: Boogie Preprocessor took 50.78ms. Allocated memory is still 159.4MB. Free memory was 98.0MB in the beginning and 96.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,638 INFO L158 Benchmark]: RCFGBuilder took 925.79ms. Allocated memory is still 159.4MB. Free memory was 95.9MB in the beginning and 71.6MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,638 INFO L158 Benchmark]: TraceAbstraction took 23601.22ms. Allocated memory was 159.4MB in the beginning and 260.0MB in the end (delta: 100.7MB). Free memory was 71.2MB in the beginning and 92.9MB in the end (delta: -21.7MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,638 INFO L158 Benchmark]: Witness Printer took 70.33ms. Allocated memory is still 260.0MB. Free memory was 92.9MB in the beginning and 88.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:40:57,640 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 69.8MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.96ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 100.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.72ms. Allocated memory is still 159.4MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.78ms. Allocated memory is still 159.4MB. Free memory was 98.0MB in the beginning and 96.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 925.79ms. Allocated memory is still 159.4MB. Free memory was 95.9MB in the beginning and 71.6MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 23601.22ms. Allocated memory was 159.4MB in the beginning and 260.0MB in the end (delta: 100.7MB). Free memory was 71.2MB in the beginning and 92.9MB in the end (delta: -21.7MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. * Witness Printer took 70.33ms. Allocated memory is still 260.0MB. Free memory was 92.9MB in the beginning and 88.7MB in the end (delta: 4.2MB). 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: 20.3s, 280 PlacesBefore, 42 PlacesAfterwards, 294 TransitionsBefore, 32 TransitionsAfterwards, 36288 CoEnabledTransitionPairs, 8 FixpointIterations, 55 TrivialSequentialCompositions, 243 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 81 ConcurrentYvCompositions, 24 ChoiceCompositions, 403 TotalNumberOfCompositions, 35316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35316, independent: 35316, independent conditional: 0, independent unconditional: 35316, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22054, independent: 22054, independent conditional: 0, independent unconditional: 22054, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35316, independent: 13262, independent conditional: 0, independent unconditional: 13262, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 22054, unknown conditional: 0, unknown unconditional: 22054] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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 7 procedures, 502 locations, 39 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: 23.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 20.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 18 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 0.5s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:40:57,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6473c729-4f02-4850-abec-78e9ef79028c/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