./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:49:57,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:49:57,840 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:49:57,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:49:57,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:49:57,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:49:57,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:49:57,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:49:57,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:49:57,872 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:49:57,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:49:57,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:49:57,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:49:57,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:49:57,875 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:49:57,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:49:57,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:49:57,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:49:57,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:49:57,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:49:57,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:49:57,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:49:57,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:49:57,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:49:57,880 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:49:57,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:49:57,881 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:49:57,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:49:57,882 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:49:57,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:49:57,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:49:57,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:49:57,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:49:57,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:49:57,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:49:57,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:49:57,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:49:57,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:49:57,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:49:57,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:49:57,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:49:57,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:49:57,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:49:57,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:49:57,886 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_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2023-11-29 02:49:58,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:49:58,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:49:58,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:49:58,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:49:58,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:49:58,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/sync01.i [2023-11-29 02:50:00,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:50:01,173 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:50:01,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/sv-benchmarks/c/pthread/sync01.i [2023-11-29 02:50:01,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/data/2bb7b8353/5525136e0d3743d3a39334fef0370454/FLAG22f7d1741 [2023-11-29 02:50:01,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/data/2bb7b8353/5525136e0d3743d3a39334fef0370454 [2023-11-29 02:50:01,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:50:01,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:50:01,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:50:01,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:50:01,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:50:01,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcf8d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01, skipping insertion in model container [2023-11-29 02:50:01,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,261 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:50:01,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:50:01,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:50:01,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:50:01,744 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:50:01,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01 WrapperNode [2023-11-29 02:50:01,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:50:01,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:50:01,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:50:01,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:50:01,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,794 INFO L138 Inliner]: procedures = 269, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2023-11-29 02:50:01,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:50:01,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:50:01,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:50:01,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:50:01,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,824 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 5, 8, 8, 2, 2]. 30 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 8, 8, 0, 0]. The 2 writes are split as follows [0, 0, 0, 0, 1, 1]. [2023-11-29 02:50:01,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:50:01,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:50:01,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:50:01,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:50:01,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (1/1) ... [2023-11-29 02:50:01,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:50:01,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:50:01,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:50:01,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:50:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:50:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:50:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 02:50:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 02:50:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 02:50:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 02:50:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 02:50:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 02:50:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 02:50:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 02:50:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 02:50:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 02:50:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 02:50:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 02:50:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:50:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:50:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:50:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 02:50:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 02:50:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 02:50:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 02:50:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:50:01,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:50:01,908 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 02:50:02,051 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:50:02,053 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:50:02,247 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:50:02,468 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:50:02,469 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 02:50:02,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:50:02 BoogieIcfgContainer [2023-11-29 02:50:02,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:50:02,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:50:02,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:50:02,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:50:02,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:50:01" (1/3) ... [2023-11-29 02:50:02,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d55b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:50:02, skipping insertion in model container [2023-11-29 02:50:02,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:50:01" (2/3) ... [2023-11-29 02:50:02,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d55b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:50:02, skipping insertion in model container [2023-11-29 02:50:02,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:50:02" (3/3) ... [2023-11-29 02:50:02,479 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2023-11-29 02:50:02,487 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 02:50:02,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:50:02,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 02:50:02,498 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 02:50:02,540 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 02:50:02,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 92 flow [2023-11-29 02:50:02,597 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2023-11-29 02:50:02,598 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 02:50:02,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 37 events. 2/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-11-29 02:50:02,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 39 transitions, 92 flow [2023-11-29 02:50:02,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 79 flow [2023-11-29 02:50:02,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:50:02,618 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6eb6bdaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:50:02,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-29 02:50:02,626 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 02:50:02,626 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-29 02:50:02,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 02:50:02,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:50:02,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:50:02,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 02:50:02,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:50:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1906665081, now seen corresponding path program 1 times [2023-11-29 02:50:02,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:50:02,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11536088] [2023-11-29 02:50:02,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:50:02,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:50:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:50:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:50:02,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:50:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11536088] [2023-11-29 02:50:02,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11536088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:50:02,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:50:02,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:50:02,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234600172] [2023-11-29 02:50:02,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:50:02,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:50:02,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:50:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:50:02,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:50:02,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2023-11-29 02:50:02,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-29 02:50:02,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:50:02,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2023-11-29 02:50:02,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:50:03,098 INFO L124 PetriNetUnfolderBase]: 128/271 cut-off events. [2023-11-29 02:50:03,099 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 02:50:03,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 271 events. 128/271 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1059 event pairs, 57 based on Foata normal form. 14/264 useless extension candidates. Maximal degree in co-relation 485. Up to 144 conditions per place. [2023-11-29 02:50:03,104 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 18 selfloop transitions, 2 changer transitions 5/36 dead transitions. [2023-11-29 02:50:03,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 131 flow [2023-11-29 02:50:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:50:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:50:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2023-11-29 02:50:03,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2023-11-29 02:50:03,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 66 transitions. [2023-11-29 02:50:03,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 66 transitions. [2023-11-29 02:50:03,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:50:03,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 66 transitions. [2023-11-29 02:50:03,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-11-29 02:50:03,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2023-11-29 02:50:03,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2023-11-29 02:50:03,129 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 79 flow. Second operand 3 states and 66 transitions. [2023-11-29 02:50:03,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 131 flow [2023-11-29 02:50:03,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 126 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 02:50:03,135 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 63 flow [2023-11-29 02:50:03,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2023-11-29 02:50:03,141 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-11-29 02:50:03,141 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 63 flow [2023-11-29 02:50:03,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-29 02:50:03,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:50:03,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:50:03,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:50:03,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 02:50:03,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:50:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 313535973, now seen corresponding path program 1 times [2023-11-29 02:50:03,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:50:03,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97311280] [2023-11-29 02:50:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:50:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:50:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:50:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:50:03,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:50:03,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97311280] [2023-11-29 02:50:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97311280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:50:03,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:50:03,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:50:03,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619530486] [2023-11-29 02:50:03,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:50:03,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:50:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:50:03,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:50:03,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:50:03,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2023-11-29 02:50:03,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-11-29 02:50:03,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:50:03,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2023-11-29 02:50:03,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:50:03,397 INFO L124 PetriNetUnfolderBase]: 103/221 cut-off events. [2023-11-29 02:50:03,397 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-29 02:50:03,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 221 events. 103/221 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 858 event pairs, 28 based on Foata normal form. 20/227 useless extension candidates. Maximal degree in co-relation 210. Up to 95 conditions per place. [2023-11-29 02:50:03,400 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 22 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-11-29 02:50:03,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 129 flow [2023-11-29 02:50:03,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:50:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 02:50:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2023-11-29 02:50:03,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4551282051282051 [2023-11-29 02:50:03,403 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2023-11-29 02:50:03,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2023-11-29 02:50:03,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:50:03,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2023-11-29 02:50:03,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-29 02:50:03,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2023-11-29 02:50:03,406 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2023-11-29 02:50:03,406 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 63 flow. Second operand 4 states and 71 transitions. [2023-11-29 02:50:03,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 129 flow [2023-11-29 02:50:03,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 125 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 02:50:03,409 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 61 flow [2023-11-29 02:50:03,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-11-29 02:50:03,410 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-11-29 02:50:03,410 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 61 flow [2023-11-29 02:50:03,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-11-29 02:50:03,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:50:03,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:50:03,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:50:03,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 02:50:03,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:50:03,412 INFO L85 PathProgramCache]: Analyzing trace with hash 975632081, now seen corresponding path program 1 times [2023-11-29 02:50:03,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:50:03,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901638909] [2023-11-29 02:50:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:50:03,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:50:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:50:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:50:03,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:50:03,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901638909] [2023-11-29 02:50:03,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901638909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:50:03,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:50:03,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:50:03,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893204835] [2023-11-29 02:50:03,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:50:03,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:50:03,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:50:03,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:50:03,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:50:03,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-29 02:50:03,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 61 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2023-11-29 02:50:03,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:50:03,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-29 02:50:03,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:50:03,652 INFO L124 PetriNetUnfolderBase]: 74/166 cut-off events. [2023-11-29 02:50:03,652 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-29 02:50:03,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 166 events. 74/166 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 519 event pairs, 21 based on Foata normal form. 14/176 useless extension candidates. Maximal degree in co-relation 166. Up to 95 conditions per place. [2023-11-29 02:50:03,655 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 19 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2023-11-29 02:50:03,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 131 flow [2023-11-29 02:50:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:50:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 02:50:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2023-11-29 02:50:03,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-11-29 02:50:03,657 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 76 transitions. [2023-11-29 02:50:03,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 76 transitions. [2023-11-29 02:50:03,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:50:03,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 76 transitions. [2023-11-29 02:50:03,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2023-11-29 02:50:03,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2023-11-29 02:50:03,660 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2023-11-29 02:50:03,660 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 61 flow. Second operand 4 states and 76 transitions. [2023-11-29 02:50:03,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 131 flow [2023-11-29 02:50:03,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 125 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 02:50:03,661 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 93 flow [2023-11-29 02:50:03,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2023-11-29 02:50:03,662 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -7 predicate places. [2023-11-29 02:50:03,663 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 93 flow [2023-11-29 02:50:03,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2023-11-29 02:50:03,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:50:03,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:50:03,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:50:03,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 02:50:03,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:50:03,664 INFO L85 PathProgramCache]: Analyzing trace with hash -858077827, now seen corresponding path program 2 times [2023-11-29 02:50:03,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:50:03,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240672404] [2023-11-29 02:50:03,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:50:03,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:50:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:50:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:50:03,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:50:03,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240672404] [2023-11-29 02:50:03,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240672404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:50:03,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:50:03,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:50:03,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340195663] [2023-11-29 02:50:03,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:50:03,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:50:03,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:50:03,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:50:03,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:50:03,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-29 02:50:03,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2023-11-29 02:50:03,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:50:03,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-29 02:50:03,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:50:03,870 INFO L124 PetriNetUnfolderBase]: 50/138 cut-off events. [2023-11-29 02:50:03,871 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-29 02:50:03,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 138 events. 50/138 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 420 event pairs, 3 based on Foata normal form. 4/136 useless extension candidates. Maximal degree in co-relation 162. Up to 42 conditions per place. [2023-11-29 02:50:03,873 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 17 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2023-11-29 02:50:03,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 165 flow [2023-11-29 02:50:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:50:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 02:50:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2023-11-29 02:50:03,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4564102564102564 [2023-11-29 02:50:03,875 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2023-11-29 02:50:03,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2023-11-29 02:50:03,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:50:03,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2023-11-29 02:50:03,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-29 02:50:03,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 02:50:03,878 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 02:50:03,878 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 93 flow. Second operand 5 states and 89 transitions. [2023-11-29 02:50:03,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 165 flow [2023-11-29 02:50:03,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 02:50:03,880 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 111 flow [2023-11-29 02:50:03,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-11-29 02:50:03,881 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-11-29 02:50:03,882 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 111 flow [2023-11-29 02:50:03,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2023-11-29 02:50:03,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:50:03,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:50:03,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:50:03,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 02:50:03,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:50:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1880023934, now seen corresponding path program 1 times [2023-11-29 02:50:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:50:03,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996668799] [2023-11-29 02:50:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:50:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:50:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:50:03,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:50:03,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:50:03,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996668799] [2023-11-29 02:50:03,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996668799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:50:03,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:50:03,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:50:03,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478805527] [2023-11-29 02:50:03,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:50:03,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:50:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:50:03,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:50:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:50:04,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2023-11-29 02:50:04,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2023-11-29 02:50:04,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:50:04,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2023-11-29 02:50:04,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:50:04,096 INFO L124 PetriNetUnfolderBase]: 59/143 cut-off events. [2023-11-29 02:50:04,096 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2023-11-29 02:50:04,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 143 events. 59/143 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 420 event pairs, 22 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 163. Up to 53 conditions per place. [2023-11-29 02:50:04,098 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 22 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-11-29 02:50:04,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 173 flow [2023-11-29 02:50:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:50:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 02:50:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 75 transitions. [2023-11-29 02:50:04,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32051282051282054 [2023-11-29 02:50:04,099 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 75 transitions. [2023-11-29 02:50:04,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 75 transitions. [2023-11-29 02:50:04,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:50:04,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 75 transitions. [2023-11-29 02:50:04,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2023-11-29 02:50:04,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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) [2023-11-29 02:50:04,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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) [2023-11-29 02:50:04,102 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 111 flow. Second operand 6 states and 75 transitions. [2023-11-29 02:50:04,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 173 flow [2023-11-29 02:50:04,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 143 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 02:50:04,105 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 87 flow [2023-11-29 02:50:04,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=87, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2023-11-29 02:50:04,106 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-11-29 02:50:04,106 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 87 flow [2023-11-29 02:50:04,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2023-11-29 02:50:04,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:50:04,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:50:04,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:50:04,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 02:50:04,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:50:04,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1848800525, now seen corresponding path program 1 times [2023-11-29 02:50:04,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:50:04,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99384953] [2023-11-29 02:50:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:50:04,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:50:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:50:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:50:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:50:04,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99384953] [2023-11-29 02:50:04,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99384953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:50:04,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:50:04,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:50:04,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598445194] [2023-11-29 02:50:04,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:50:04,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:50:04,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:50:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:50:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:50:04,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-29 02:50:04,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-29 02:50:04,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:50:04,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-29 02:50:04,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:50:04,208 INFO L124 PetriNetUnfolderBase]: 48/125 cut-off events. [2023-11-29 02:50:04,208 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-11-29 02:50:04,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 125 events. 48/125 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 382 event pairs, 30 based on Foata normal form. 4/119 useless extension candidates. Maximal degree in co-relation 121. Up to 93 conditions per place. [2023-11-29 02:50:04,209 INFO L140 encePairwiseOnDemand]: 37/39 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-11-29 02:50:04,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 129 flow [2023-11-29 02:50:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:50:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:50:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2023-11-29 02:50:04,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2023-11-29 02:50:04,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 54 transitions. [2023-11-29 02:50:04,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 54 transitions. [2023-11-29 02:50:04,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:50:04,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 54 transitions. [2023-11-29 02:50:04,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-11-29 02:50:04,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2023-11-29 02:50:04,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2023-11-29 02:50:04,213 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 87 flow. Second operand 3 states and 54 transitions. [2023-11-29 02:50:04,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 129 flow [2023-11-29 02:50:04,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 120 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-29 02:50:04,214 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-29 02:50:04,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-29 02:50:04,215 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -7 predicate places. [2023-11-29 02:50:04,215 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-29 02:50:04,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-29 02:50:04,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-29 02:50:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-29 02:50:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-29 02:50:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-29 02:50:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-29 02:50:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-29 02:50:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-29 02:50:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-29 02:50:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-29 02:50:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-29 02:50:04,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:50:04,221 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-11-29 02:50:04,226 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 02:50:04,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:50:04,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:50:04 BasicIcfg [2023-11-29 02:50:04,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:50:04,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:50:04,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:50:04,233 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:50:04,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:50:02" (3/4) ... [2023-11-29 02:50:04,235 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:50:04,238 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 02:50:04,238 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 02:50:04,243 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2023-11-29 02:50:04,243 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 02:50:04,243 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 02:50:04,244 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 02:50:04,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:50:04,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:50:04,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:50:04,331 INFO L158 Benchmark]: Toolchain (without parser) took 3126.81ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 125.0MB in the beginning and 84.7MB in the end (delta: 40.3MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,332 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 73.8MB in the end (delta: 136.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.48ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 96.2MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.60ms. Allocated memory is still 157.3MB. Free memory was 96.2MB in the beginning and 93.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,333 INFO L158 Benchmark]: Boogie Preprocessor took 46.02ms. Allocated memory is still 157.3MB. Free memory was 93.5MB in the beginning and 91.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,333 INFO L158 Benchmark]: RCFGBuilder took 627.17ms. Allocated memory is still 157.3MB. Free memory was 91.1MB in the beginning and 104.2MB in the end (delta: -13.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,334 INFO L158 Benchmark]: TraceAbstraction took 1759.77ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 103.7MB in the beginning and 90.0MB in the end (delta: 13.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,334 INFO L158 Benchmark]: Witness Printer took 98.09ms. Allocated memory is still 188.7MB. Free memory was 90.0MB in the beginning and 84.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 02:50:04,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 73.8MB in the end (delta: 136.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.48ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 96.2MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.60ms. Allocated memory is still 157.3MB. Free memory was 96.2MB in the beginning and 93.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.02ms. Allocated memory is still 157.3MB. Free memory was 93.5MB in the beginning and 91.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.17ms. Allocated memory is still 157.3MB. Free memory was 91.1MB in the beginning and 104.2MB in the end (delta: -13.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1759.77ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 103.7MB in the beginning and 90.0MB in the end (delta: 13.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Witness Printer took 98.09ms. Allocated memory is still 188.7MB. Free memory was 90.0MB in the beginning and 84.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 68 locations, 10 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: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 346 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 27 mSDtfsCounter, 346 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 0.6s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 02:50:04,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa5a900b-8ee1-43ba-9a56-a9b3f62245ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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