./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu --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 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:33,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:33,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:56:33,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:33,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:33,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:33,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:33,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:33,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:33,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:33,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:33,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:33,911 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:33,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:33,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:33,914 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:33,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:33,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:33,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:33,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:33,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:33,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:33,919 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:56:33,919 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:33,920 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:33,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:33,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:33,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:33,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:33,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:33,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:33,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:33,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:33,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:33,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:33,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:33,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:33,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:33,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:33,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:33,929 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:33,930 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_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 [2023-11-19 07:56:34,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:34,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:34,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:34,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:34,277 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:34,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2023-11-19 07:56:37,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:37,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:37,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2023-11-19 07:56:37,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/data/3a96ca497/9a17f49f0ad14f7ca9d21c642681c9b8/FLAGfff300832 [2023-11-19 07:56:37,831 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/data/3a96ca497/9a17f49f0ad14f7ca9d21c642681c9b8 [2023-11-19 07:56:37,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:37,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:37,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:37,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:37,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:37,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:37" (1/1) ... [2023-11-19 07:56:37,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72485e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:37, skipping insertion in model container [2023-11-19 07:56:37,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:37" (1/1) ... [2023-11-19 07:56:37,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:38,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:38,514 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:38,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:38,616 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:38,616 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:38,624 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:38,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38 WrapperNode [2023-11-19 07:56:38,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:38,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:38,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:38,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:38,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,711 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 169 [2023-11-19 07:56:38,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:38,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:38,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:38,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:38,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:38,792 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:38,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:38,793 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:38,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (1/1) ... [2023-11-19 07:56:38,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:38,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:38,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:38,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:56:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:56:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:56:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:56:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:56:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:56:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:56:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:56:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:56:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:56:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:56:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:38,902 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:56:39,065 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:39,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:39,475 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:39,646 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:39,646 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:56:39,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:39 BoogieIcfgContainer [2023-11-19 07:56:39,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:39,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:39,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:39,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:39,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:37" (1/3) ... [2023-11-19 07:56:39,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113463fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:39, skipping insertion in model container [2023-11-19 07:56:39,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:38" (2/3) ... [2023-11-19 07:56:39,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113463fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:39, skipping insertion in model container [2023-11-19 07:56:39,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:39" (3/3) ... [2023-11-19 07:56:39,669 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2023-11-19 07:56:39,678 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:56:39,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:39,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:56:39,690 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:56:39,777 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:56:39,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 146 transitions, 308 flow [2023-11-19 07:56:39,949 INFO L124 PetriNetUnfolderBase]: 3/142 cut-off events. [2023-11-19 07:56:39,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:39,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 3/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-11-19 07:56:39,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 146 transitions, 308 flow [2023-11-19 07:56:39,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 142 transitions, 296 flow [2023-11-19 07:56:39,995 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:56:40,026 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 142 transitions, 296 flow [2023-11-19 07:56:40,029 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 142 transitions, 296 flow [2023-11-19 07:56:40,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 142 transitions, 296 flow [2023-11-19 07:56:40,078 INFO L124 PetriNetUnfolderBase]: 3/142 cut-off events. [2023-11-19 07:56:40,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:40,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 3/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-11-19 07:56:40,089 INFO L119 LiptonReduction]: Number of co-enabled transitions 4800 [2023-11-19 07:56:46,339 INFO L134 LiptonReduction]: Checked pairs total: 15218 [2023-11-19 07:56:46,339 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-11-19 07:56:46,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:46,362 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;@35c9a428, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:46,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:56:46,367 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:56:46,368 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:56:46,368 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:46,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:46,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:56:46,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:56:46,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash 623206015, now seen corresponding path program 1 times [2023-11-19 07:56:46,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:46,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624228503] [2023-11-19 07:56:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:46,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:46,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624228503] [2023-11-19 07:56:46,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624228503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:46,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:46,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:56:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145636414] [2023-11-19 07:56:46,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:46,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:46,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:46,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:46,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:46,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2023-11-19 07:56:46,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2023-11-19 07:56:46,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:46,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2023-11-19 07:56:46,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:49,095 INFO L124 PetriNetUnfolderBase]: 8015/11223 cut-off events. [2023-11-19 07:56:49,096 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-19 07:56:49,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22643 conditions, 11223 events. 8015/11223 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 63354 event pairs, 2225 based on Foata normal form. 0/8164 useless extension candidates. Maximal degree in co-relation 22631. Up to 10083 conditions per place. [2023-11-19 07:56:49,211 INFO L140 encePairwiseOnDemand]: 257/270 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-11-19 07:56:49,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 237 flow [2023-11-19 07:56:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 417 transitions. [2023-11-19 07:56:49,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2023-11-19 07:56:49,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 417 transitions. [2023-11-19 07:56:49,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 417 transitions. [2023-11-19 07:56:49,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:49,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 417 transitions. [2023-11-19 07:56:49,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-11-19 07:56:49,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:49,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:49,259 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 82 flow. Second operand 3 states and 417 transitions. [2023-11-19 07:56:49,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 237 flow [2023-11-19 07:56:49,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:56:49,270 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-11-19 07:56:49,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:56:49,278 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:56:49,278 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-11-19 07:56:49,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2023-11-19 07:56:49,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:49,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:49,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:49,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:56:49,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:49,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1353145960, now seen corresponding path program 1 times [2023-11-19 07:56:49,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:49,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667323115] [2023-11-19 07:56:49,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:49,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:49,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:49,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667323115] [2023-11-19 07:56:49,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667323115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:49,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:49,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959452899] [2023-11-19 07:56:49,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:49,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:49,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:49,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:49,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:49,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2023-11-19 07:56:49,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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) [2023-11-19 07:56:49,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:49,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2023-11-19 07:56:49,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:50,799 INFO L124 PetriNetUnfolderBase]: 4853/6801 cut-off events. [2023-11-19 07:56:50,799 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2023-11-19 07:56:50,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 6801 events. 4853/6801 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 35490 event pairs, 1225 based on Foata normal form. 0/5748 useless extension candidates. Maximal degree in co-relation 16695. Up to 5660 conditions per place. [2023-11-19 07:56:50,872 INFO L140 encePairwiseOnDemand]: 261/270 looper letters, 43 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2023-11-19 07:56:50,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 245 flow [2023-11-19 07:56:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:56:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 528 transitions. [2023-11-19 07:56:50,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2023-11-19 07:56:50,876 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 528 transitions. [2023-11-19 07:56:50,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 528 transitions. [2023-11-19 07:56:50,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:50,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 528 transitions. [2023-11-19 07:56:50,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-11-19 07:56:50,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 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) [2023-11-19 07:56:50,885 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 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) [2023-11-19 07:56:50,885 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 528 transitions. [2023-11-19 07:56:50,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 245 flow [2023-11-19 07:56:50,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:56:50,888 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-11-19 07:56:50,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-19 07:56:50,890 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-19 07:56:50,890 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-11-19 07:56:50,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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) [2023-11-19 07:56:50,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:50,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:50,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:56:50,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:56:50,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:50,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2111506779, now seen corresponding path program 1 times [2023-11-19 07:56:50,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:50,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057532094] [2023-11-19 07:56:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:50,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:51,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:51,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057532094] [2023-11-19 07:56:51,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057532094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:51,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:51,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25954490] [2023-11-19 07:56:51,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:51,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:51,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:51,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:51,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:51,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2023-11-19 07:56:51,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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) [2023-11-19 07:56:51,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:51,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2023-11-19 07:56:51,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:51,962 INFO L124 PetriNetUnfolderBase]: 3167/4489 cut-off events. [2023-11-19 07:56:51,963 INFO L125 PetriNetUnfolderBase]: For 1298/1298 co-relation queries the response was YES. [2023-11-19 07:56:51,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10885 conditions, 4489 events. 3167/4489 cut-off events. For 1298/1298 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 22153 event pairs, 799 based on Foata normal form. 0/4244 useless extension candidates. Maximal degree in co-relation 10873. Up to 1680 conditions per place. [2023-11-19 07:56:51,999 INFO L140 encePairwiseOnDemand]: 261/270 looper letters, 58 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2023-11-19 07:56:51,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 71 transitions, 338 flow [2023-11-19 07:56:51,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:56:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 547 transitions. [2023-11-19 07:56:52,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5064814814814815 [2023-11-19 07:56:52,002 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 547 transitions. [2023-11-19 07:56:52,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 547 transitions. [2023-11-19 07:56:52,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:52,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 547 transitions. [2023-11-19 07:56:52,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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) [2023-11-19 07:56:52,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 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) [2023-11-19 07:56:52,009 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 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) [2023-11-19 07:56:52,010 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 547 transitions. [2023-11-19 07:56:52,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 71 transitions, 338 flow [2023-11-19 07:56:52,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 71 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:56:52,015 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-11-19 07:56:52,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:56:52,017 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:56:52,017 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-11-19 07:56:52,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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) [2023-11-19 07:56:52,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:52,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:52,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:56:52,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:56:52,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:52,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1082406075, now seen corresponding path program 1 times [2023-11-19 07:56:52,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:52,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537276005] [2023-11-19 07:56:52,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:52,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:52,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:52,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537276005] [2023-11-19 07:56:52,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537276005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:52,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:52,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:52,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904050922] [2023-11-19 07:56:52,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:52,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:56:52,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:52,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:56:52,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:52,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2023-11-19 07:56:52,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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) [2023-11-19 07:56:52,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:52,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2023-11-19 07:56:52,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:53,079 INFO L124 PetriNetUnfolderBase]: 2867/4015 cut-off events. [2023-11-19 07:56:53,080 INFO L125 PetriNetUnfolderBase]: For 2640/2640 co-relation queries the response was YES. [2023-11-19 07:56:53,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11250 conditions, 4015 events. 2867/4015 cut-off events. For 2640/2640 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 19377 event pairs, 755 based on Foata normal form. 0/3968 useless extension candidates. Maximal degree in co-relation 11237. Up to 1680 conditions per place. [2023-11-19 07:56:53,112 INFO L140 encePairwiseOnDemand]: 261/270 looper letters, 67 selfloop transitions, 13 changer transitions 4/88 dead transitions. [2023-11-19 07:56:53,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 88 transitions, 460 flow [2023-11-19 07:56:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:56:53,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2023-11-19 07:56:53,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059259259259259 [2023-11-19 07:56:53,116 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2023-11-19 07:56:53,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2023-11-19 07:56:53,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:53,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2023-11-19 07:56:53,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 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) [2023-11-19 07:56:53,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 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) [2023-11-19 07:56:53,125 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 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) [2023-11-19 07:56:53,125 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 683 transitions. [2023-11-19 07:56:53,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 88 transitions, 460 flow [2023-11-19 07:56:53,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 88 transitions, 442 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:56:53,134 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-11-19 07:56:53,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-19 07:56:53,135 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-19 07:56:53,135 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-11-19 07:56:53,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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) [2023-11-19 07:56:53,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:53,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:53,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:56:53,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:56:53,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash 551567657, now seen corresponding path program 1 times [2023-11-19 07:56:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:53,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268891759] [2023-11-19 07:56:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:53,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:53,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268891759] [2023-11-19 07:56:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268891759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297194862] [2023-11-19 07:56:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:53,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:53,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:53,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:53,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2023-11-19 07:56:53,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 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) [2023-11-19 07:56:53,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:53,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2023-11-19 07:56:53,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:54,179 INFO L124 PetriNetUnfolderBase]: 2840/3968 cut-off events. [2023-11-19 07:56:54,180 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-11-19 07:56:54,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11395 conditions, 3968 events. 2840/3968 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 19088 event pairs, 755 based on Foata normal form. 16/3953 useless extension candidates. Maximal degree in co-relation 11381. Up to 1680 conditions per place. [2023-11-19 07:56:54,198 INFO L140 encePairwiseOnDemand]: 261/270 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2023-11-19 07:56:54,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 412 flow [2023-11-19 07:56:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 794 transitions. [2023-11-19 07:56:54,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4901234567901235 [2023-11-19 07:56:54,203 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 794 transitions. [2023-11-19 07:56:54,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 794 transitions. [2023-11-19 07:56:54,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:54,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 794 transitions. [2023-11-19 07:56:54,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.33333333333334) internal successors, (794), 6 states have internal predecessors, (794), 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) [2023-11-19 07:56:54,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-19 07:56:54,213 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-19 07:56:54,214 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 794 transitions. [2023-11-19 07:56:54,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 412 flow [2023-11-19 07:56:54,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 80 transitions, 357 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:56:54,348 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-19 07:56:54,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-19 07:56:54,349 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-19 07:56:54,349 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-19 07:56:54,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 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) [2023-11-19 07:56:54,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:56:54,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:56:54,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:56:54,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:56:54,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:56:54,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:56:54,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:56:54,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:56:54,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:56:54,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:56:54,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:56:54,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:56:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:56:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:56:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:56:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:56:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:56:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:56:54,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:56:54,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:56:54,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:56:54,363 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:56:54,369 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:56:54,369 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:56:54,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:56:54 BasicIcfg [2023-11-19 07:56:54,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:56:54,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:56:54,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:56:54,375 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:56:54,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:39" (3/4) ... [2023-11-19 07:56:54,377 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:56:54,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:56:54,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:56:54,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:56:54,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:56:54,389 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-19 07:56:54,390 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 07:56:54,390 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:56:54,391 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:56:54,487 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:56:54,487 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:56:54,488 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:56:54,489 INFO L158 Benchmark]: Toolchain (without parser) took 16643.01ms. Allocated memory was 142.6MB in the beginning and 977.3MB in the end (delta: 834.7MB). Free memory was 97.4MB in the beginning and 616.9MB in the end (delta: -519.5MB). Peak memory consumption was 317.2MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,489 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:54,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.42ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 73.5MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.67ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 70.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,490 INFO L158 Benchmark]: Boogie Preprocessor took 79.02ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 68.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,491 INFO L158 Benchmark]: RCFGBuilder took 857.90ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 77.5MB in the end (delta: -9.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,491 INFO L158 Benchmark]: TraceAbstraction took 14714.81ms. Allocated memory was 142.6MB in the beginning and 977.3MB in the end (delta: 834.7MB). Free memory was 76.9MB in the beginning and 622.1MB in the end (delta: -545.3MB). Peak memory consumption was 327.2MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,492 INFO L158 Benchmark]: Witness Printer took 113.29ms. Allocated memory is still 977.3MB. Free memory was 622.1MB in the beginning and 616.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:56:54,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.42ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 73.5MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.67ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 70.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.02ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 68.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 857.90ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 77.5MB in the end (delta: -9.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14714.81ms. Allocated memory was 142.6MB in the beginning and 977.3MB in the end (delta: 834.7MB). Free memory was 76.9MB in the beginning and 622.1MB in the end (delta: -545.3MB). Peak memory consumption was 327.2MB. Max. memory is 16.1GB. * Witness Printer took 113.29ms. Allocated memory is still 977.3MB. Free memory was 622.1MB in the beginning and 616.9MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 152 PlacesBefore, 48 PlacesAfterwards, 142 TransitionsBefore, 35 TransitionsAfterwards, 4800 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 124 TotalNumberOfCompositions, 15218 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6372, independent: 6031, independent conditional: 0, independent unconditional: 6031, dependent: 341, dependent conditional: 0, dependent unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2700, independent: 2627, independent conditional: 0, independent unconditional: 2627, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6372, independent: 3404, independent conditional: 0, independent unconditional: 3404, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 2700, unknown conditional: 0, unknown unconditional: 2700] , Statistics on independence cache: Total cache size (in pairs): 215, Positive cache size: 193, Positive conditional cache size: 0, Positive unconditional cache size: 193, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: 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 9 procedures, 190 locations, 20 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: 14.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 427 IncrementalHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 7 mSDtfsCounter, 427 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:56:54,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59f022e-1c11-44cd-9c04-ca557c6d1844/bin/uautomizer-verify-uCwYo4JHxu/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