./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:00:48,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:00:48,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 23:00:48,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:00:48,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:00:48,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:00:48,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:00:48,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:00:48,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:00:48,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:00:48,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:00:48,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:00:48,746 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:00:48,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:00:48,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:00:48,748 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:00:48,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:00:48,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:00:48,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:00:48,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:00:48,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:00:48,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:00:48,757 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:00:48,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:00:48,760 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:00:48,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:00:48,761 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:00:48,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:00:48,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:00:48,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:00:48,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:48,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:00:48,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:00:48,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:00:48,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:00:48,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:00:48,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:00:48,766 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:00:48,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:00:48,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:00:48,767 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:00:48,767 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_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 [2023-11-06 23:00:49,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:00:49,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:00:49,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:00:49,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:00:49,125 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:00:49,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2023-11-06 23:00:52,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:00:52,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:00:52,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2023-11-06 23:00:52,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/data/369184d6e/f30f420d870d4c3db4b55a1aa869a222/FLAG3ae239df5 [2023-11-06 23:00:52,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/data/369184d6e/f30f420d870d4c3db4b55a1aa869a222 [2023-11-06 23:00:52,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:00:52,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:00:52,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:52,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:00:52,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:00:52,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:52" (1/1) ... [2023-11-06 23:00:52,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf983b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:52, skipping insertion in model container [2023-11-06 23:00:52,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:52" (1/1) ... [2023-11-06 23:00:52,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:00:53,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:53,320 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:00:53,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:53,417 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:00:53,417 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:00:53,425 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:00:53,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53 WrapperNode [2023-11-06 23:00:53,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:53,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:53,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:00:53,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:00:53,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,545 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 169 [2023-11-06 23:00:53,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:53,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:00:53,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:00:53,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:00:53,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:00:53,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:00:53,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:00:53,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:00:53,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (1/1) ... [2023-11-06 23:00:53,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:53,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:00:53,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:00:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:00:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 23:00:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:00:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:00:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:00:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 23:00:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 23:00:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 23:00:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 23:00:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 23:00:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 23:00:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 23:00:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 23:00:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:00:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 23:00:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:00:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:00:53,684 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:00:53,839 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:00:53,848 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:00:54,356 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:00:54,522 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:00:54,522 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:00:54,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:54 BoogieIcfgContainer [2023-11-06 23:00:54,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:00:54,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:00:54,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:00:54,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:00:54,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:00:52" (1/3) ... [2023-11-06 23:00:54,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf26bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:00:54, skipping insertion in model container [2023-11-06 23:00:54,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:53" (2/3) ... [2023-11-06 23:00:54,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf26bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:00:54, skipping insertion in model container [2023-11-06 23:00:54,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:54" (3/3) ... [2023-11-06 23:00:54,539 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2023-11-06 23:00:54,548 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:00:54,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:00:54,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 23:00:54,560 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:00:54,650 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:00:54,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 145 transitions, 306 flow [2023-11-06 23:00:54,801 INFO L124 PetriNetUnfolderBase]: 3/141 cut-off events. [2023-11-06 23:00:54,801 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:54,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 3/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-06 23:00:54,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 145 transitions, 306 flow [2023-11-06 23:00:54,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 141 transitions, 294 flow [2023-11-06 23:00:54,836 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:00:54,846 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 141 transitions, 294 flow [2023-11-06 23:00:54,849 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 141 transitions, 294 flow [2023-11-06 23:00:54,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 141 transitions, 294 flow [2023-11-06 23:00:54,885 INFO L124 PetriNetUnfolderBase]: 3/141 cut-off events. [2023-11-06 23:00:54,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:54,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 3/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-06 23:00:54,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 4622 [2023-11-06 23:01:01,104 INFO L134 LiptonReduction]: Checked pairs total: 15868 [2023-11-06 23:01:01,106 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-11-06 23:01:01,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:01:01,152 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ebf298d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:01:01,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-06 23:01:01,161 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:01:01,161 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 23:01:01,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:01:01,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:01,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:01:01,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 23:01:01,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 601246497, now seen corresponding path program 1 times [2023-11-06 23:01:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087321659] [2023-11-06 23:01:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:01,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:01,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087321659] [2023-11-06 23:01:01,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087321659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:01,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:01,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 23:01:01,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767661871] [2023-11-06 23:01:01,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:01,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:01:01,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:01,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:01:01,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:01:01,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-11-06 23:01:01,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:01,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:01,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-11-06 23:01:01,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:03,791 INFO L124 PetriNetUnfolderBase]: 8015/11243 cut-off events. [2023-11-06 23:01:03,791 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-11-06 23:01:03,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22663 conditions, 11243 events. 8015/11243 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 63592 event pairs, 2225 based on Foata normal form. 0/8182 useless extension candidates. Maximal degree in co-relation 22651. Up to 10083 conditions per place. [2023-11-06 23:01:03,916 INFO L140 encePairwiseOnDemand]: 253/266 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-11-06 23:01:03,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 237 flow [2023-11-06 23:01:03,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:01:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:01:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-11-06 23:01:03,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.518796992481203 [2023-11-06 23:01:03,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-11-06 23:01:03,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-11-06 23:01:03,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:03,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-11-06 23:01:03,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:03,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:03,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:03,970 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 82 flow. Second operand 3 states and 414 transitions. [2023-11-06 23:01:03,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 237 flow [2023-11-06 23:01:03,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 23:01:03,982 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-11-06 23:01:03,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, 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} [2023-11-06 23:01:03,989 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-06 23:01:03,990 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-11-06 23:01:03,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:03,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:03,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:03,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:01:03,991 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 23:01:03,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash 597585225, now seen corresponding path program 1 times [2023-11-06 23:01:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:03,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889068007] [2023-11-06 23:01:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:03,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:04,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889068007] [2023-11-06 23:01:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889068007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:04,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:04,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:01:04,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091306799] [2023-11-06 23:01:04,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:04,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:01:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:01:04,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:04,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-11-06 23:01:04,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:04,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:04,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-11-06 23:01:04,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:05,453 INFO L124 PetriNetUnfolderBase]: 4853/6821 cut-off events. [2023-11-06 23:01:05,453 INFO L125 PetriNetUnfolderBase]: For 398/398 co-relation queries the response was YES. [2023-11-06 23:01:05,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16726 conditions, 6821 events. 4853/6821 cut-off events. For 398/398 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 35732 event pairs, 1225 based on Foata normal form. 0/5766 useless extension candidates. Maximal degree in co-relation 16715. Up to 5660 conditions per place. [2023-11-06 23:01:05,519 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 43 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2023-11-06 23:01:05,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 245 flow [2023-11-06 23:01:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:01:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 23:01:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2023-11-06 23:01:05,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4924812030075188 [2023-11-06 23:01:05,523 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2023-11-06 23:01:05,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2023-11-06 23:01:05,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:05,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2023-11-06 23:01:05,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:05,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 266.0) internal successors, (1330), 5 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:05,533 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 266.0) internal successors, (1330), 5 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:05,534 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 524 transitions. [2023-11-06 23:01:05,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 245 flow [2023-11-06 23:01:05,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:01:05,538 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-11-06 23:01:05,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, 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} [2023-11-06 23:01:05,545 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-06 23:01:05,546 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-11-06 23:01:05,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:05,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:05,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:05,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:01:05,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 23:01:05,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash 546269584, now seen corresponding path program 1 times [2023-11-06 23:01:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:05,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113084477] [2023-11-06 23:01:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:05,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113084477] [2023-11-06 23:01:05,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113084477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:05,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:05,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:01:05,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413422908] [2023-11-06 23:01:05,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:05,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:01:05,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:05,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:01:05,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:05,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-11-06 23:01:05,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:05,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:05,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-11-06 23:01:05,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:06,879 INFO L124 PetriNetUnfolderBase]: 3167/4509 cut-off events. [2023-11-06 23:01:06,879 INFO L125 PetriNetUnfolderBase]: For 1258/1258 co-relation queries the response was YES. [2023-11-06 23:01:06,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10905 conditions, 4509 events. 3167/4509 cut-off events. For 1258/1258 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 22424 event pairs, 799 based on Foata normal form. 0/4262 useless extension candidates. Maximal degree in co-relation 10893. Up to 1680 conditions per place. [2023-11-06 23:01:06,919 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 58 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2023-11-06 23:01:06,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 71 transitions, 338 flow [2023-11-06 23:01:06,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:01:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 23:01:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 543 transitions. [2023-11-06 23:01:06,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103383458646616 [2023-11-06 23:01:06,923 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 543 transitions. [2023-11-06 23:01:06,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 543 transitions. [2023-11-06 23:01:06,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:06,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 543 transitions. [2023-11-06 23:01:06,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.75) internal successors, (543), 4 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:06,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 266.0) internal successors, (1330), 5 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:06,929 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 266.0) internal successors, (1330), 5 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:06,930 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 543 transitions. [2023-11-06 23:01:06,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 71 transitions, 338 flow [2023-11-06 23:01:06,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 71 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:01:06,934 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-11-06 23:01:06,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, 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} [2023-11-06 23:01:06,936 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-06 23:01:06,936 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-11-06 23:01:06,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:06,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:06,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:06,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:01:06,943 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 23:01:06,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:06,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1998522731, now seen corresponding path program 1 times [2023-11-06 23:01:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:06,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18772375] [2023-11-06 23:01:06,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:06,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:07,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:07,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:07,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18772375] [2023-11-06 23:01:07,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18772375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:07,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:07,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:01:07,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893574898] [2023-11-06 23:01:07,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:07,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:01:07,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:07,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:01:07,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:01:07,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-11-06 23:01:07,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:07,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:07,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-11-06 23:01:07,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:08,036 INFO L124 PetriNetUnfolderBase]: 2867/4035 cut-off events. [2023-11-06 23:01:08,036 INFO L125 PetriNetUnfolderBase]: For 2580/2580 co-relation queries the response was YES. [2023-11-06 23:01:08,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11270 conditions, 4035 events. 2867/4035 cut-off events. For 2580/2580 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 19577 event pairs, 755 based on Foata normal form. 0/3986 useless extension candidates. Maximal degree in co-relation 11257. Up to 1680 conditions per place. [2023-11-06 23:01:08,070 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 67 selfloop transitions, 13 changer transitions 4/88 dead transitions. [2023-11-06 23:01:08,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 88 transitions, 460 flow [2023-11-06 23:01:08,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:01:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:01:08,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 678 transitions. [2023-11-06 23:01:08,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5097744360902255 [2023-11-06 23:01:08,073 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 678 transitions. [2023-11-06 23:01:08,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 678 transitions. [2023-11-06 23:01:08,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:08,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 678 transitions. [2023-11-06 23:01:08,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.6) internal successors, (678), 5 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:08,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:08,081 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:08,082 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 678 transitions. [2023-11-06 23:01:08,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 88 transitions, 460 flow [2023-11-06 23:01:08,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 88 transitions, 442 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-06 23:01:08,094 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-11-06 23:01:08,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, 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} [2023-11-06 23:01:08,096 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-06 23:01:08,096 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-11-06 23:01:08,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:08,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:08,097 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] [2023-11-06 23:01:08,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:01:08,098 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 23:01:08,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash 146033318, now seen corresponding path program 1 times [2023-11-06 23:01:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:08,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567121991] [2023-11-06 23:01:08,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:08,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:08,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567121991] [2023-11-06 23:01:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567121991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:08,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:08,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:01:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718706227] [2023-11-06 23:01:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:08,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:01:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:01:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:01:08,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-11-06 23:01:08,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:08,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:08,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-11-06 23:01:08,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:09,104 INFO L124 PetriNetUnfolderBase]: 2840/3988 cut-off events. [2023-11-06 23:01:09,104 INFO L125 PetriNetUnfolderBase]: For 3190/3190 co-relation queries the response was YES. [2023-11-06 23:01:09,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11415 conditions, 3988 events. 2840/3988 cut-off events. For 3190/3190 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 19355 event pairs, 755 based on Foata normal form. 16/3971 useless extension candidates. Maximal degree in co-relation 11401. Up to 1680 conditions per place. [2023-11-06 23:01:09,121 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2023-11-06 23:01:09,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 412 flow [2023-11-06 23:01:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:01:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:01:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 788 transitions. [2023-11-06 23:01:09,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49373433583959897 [2023-11-06 23:01:09,125 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 788 transitions. [2023-11-06 23:01:09,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 788 transitions. [2023-11-06 23:01:09,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:09,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 788 transitions. [2023-11-06 23:01:09,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:09,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:09,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:09,133 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 788 transitions. [2023-11-06 23:01:09,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 412 flow [2023-11-06 23:01:09,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 80 transitions, 357 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-06 23:01:09,254 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-06 23:01:09,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, 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} [2023-11-06 23:01:09,255 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-06 23:01:09,255 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-06 23:01:09,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:09,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-06 23:01:09,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-06 23:01:09,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-06 23:01:09,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-06 23:01:09,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-06 23:01:09,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-06 23:01:09,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-06 23:01:09,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-06 23:01:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-06 23:01:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-06 23:01:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-06 23:01:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-06 23:01:09,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-06 23:01:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-06 23:01:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-06 23:01:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-06 23:01:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-06 23:01:09,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-06 23:01:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-06 23:01:09,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-06 23:01:09,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:01:09,263 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 23:01:09,270 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 23:01:09,270 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:01:09,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:01:09 BasicIcfg [2023-11-06 23:01:09,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:01:09,277 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:01:09,278 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:01:09,278 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:01:09,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:54" (3/4) ... [2023-11-06 23:01:09,281 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:01:09,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 23:01:09,285 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 23:01:09,285 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 23:01:09,285 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 23:01:09,294 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-06 23:01:09,294 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 23:01:09,295 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 23:01:09,295 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:01:09,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:01:09,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:01:09,373 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:01:09,374 INFO L158 Benchmark]: Toolchain (without parser) took 16580.74ms. Allocated memory was 132.1MB in the beginning and 595.6MB in the end (delta: 463.5MB). Free memory was 86.2MB in the beginning and 320.7MB in the end (delta: -234.6MB). Peak memory consumption was 230.3MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,374 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:01:09,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.45ms. Allocated memory is still 132.1MB. Free memory was 86.2MB in the beginning and 62.4MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.04ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 137.1MB in the end (delta: -74.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,375 INFO L158 Benchmark]: Boogie Preprocessor took 37.78ms. Allocated memory is still 165.7MB. Free memory was 137.1MB in the beginning and 135.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,376 INFO L158 Benchmark]: RCFGBuilder took 940.66ms. Allocated memory is still 165.7MB. Free memory was 135.0MB in the beginning and 95.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,376 INFO L158 Benchmark]: TraceAbstraction took 14748.52ms. Allocated memory was 165.7MB in the beginning and 595.6MB in the end (delta: 429.9MB). Free memory was 94.2MB in the beginning and 324.9MB in the end (delta: -230.7MB). Peak memory consumption was 398.2MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,377 INFO L158 Benchmark]: Witness Printer took 95.97ms. Allocated memory is still 595.6MB. Free memory was 324.9MB in the beginning and 320.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:01:09,379 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 631.45ms. Allocated memory is still 132.1MB. Free memory was 86.2MB in the beginning and 62.4MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.04ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 137.1MB in the end (delta: -74.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.78ms. Allocated memory is still 165.7MB. Free memory was 137.1MB in the beginning and 135.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 940.66ms. Allocated memory is still 165.7MB. Free memory was 135.0MB in the beginning and 95.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14748.52ms. Allocated memory was 165.7MB in the beginning and 595.6MB in the end (delta: 429.9MB). Free memory was 94.2MB in the beginning and 324.9MB in the end (delta: -230.7MB). Peak memory consumption was 398.2MB. Max. memory is 16.1GB. * Witness Printer took 95.97ms. Allocated memory is still 595.6MB. Free memory was 324.9MB in the beginning and 320.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 151 PlacesBefore, 48 PlacesAfterwards, 141 TransitionsBefore, 35 TransitionsAfterwards, 4622 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 121 TotalNumberOfCompositions, 15868 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5854, independent: 5496, independent conditional: 0, independent unconditional: 5496, dependent: 358, dependent conditional: 0, dependent unconditional: 358, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2480, independent: 2388, independent conditional: 0, independent unconditional: 2388, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5854, independent: 3108, independent conditional: 0, independent unconditional: 3108, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 2480, unknown conditional: 0, unknown unconditional: 2480] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 186, Positive conditional cache size: 0, Positive unconditional cache size: 186, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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, 188 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: 14.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 242 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 431 IncrementalHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 8 mSDtfsCounter, 431 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! [2023-11-06 23:01:09,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f4b37e-97be-4d46-b801-76681c2ff3e4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE