./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.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_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/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_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/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_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:49:32,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:49:32,532 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:49:32,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:49:32,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:49:32,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:49:32,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:49:32,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:49:32,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:49:32,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:49:32,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:49:32,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:49:32,594 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:49:32,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:49:32,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:49:32,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:49:32,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:49:32,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:49:32,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:49:32,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:49:32,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:49:32,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:49:32,600 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:49:32,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:49:32,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:49:32,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:49:32,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:49:32,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:49:32,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:49:32,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:49:32,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:49:32,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:49:32,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:49:32,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:49:32,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:49:32,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:49:32,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:49:32,608 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:49:32,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:49:32,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:49:32,609 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:49:32,609 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_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2023-11-06 22:49:32,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:49:32,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:49:32,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:49:32,994 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:49:32,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:49:32,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2023-11-06 22:49:36,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:49:36,472 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:49:36,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2023-11-06 22:49:36,503 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/data/fd406bf5b/feedb44ccd304f22a7f601b650b6cb85/FLAG2ce5dbe26 [2023-11-06 22:49:36,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/data/fd406bf5b/feedb44ccd304f22a7f601b650b6cb85 [2023-11-06 22:49:36,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:49:36,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:49:36,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:49:36,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:49:36,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:49:36,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:49:36" (1/1) ... [2023-11-06 22:49:36,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c44b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:36, skipping insertion in model container [2023-11-06 22:49:36,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:49:36" (1/1) ... [2023-11-06 22:49:36,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:49:37,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:49:37,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:49:37,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:49:37,471 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:49:37,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37 WrapperNode [2023-11-06 22:49:37,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:49:37,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:49:37,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:49:37,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:49:37,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,532 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-06 22:49:37,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:49:37,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:49:37,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:49:37,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:49:37,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:49:37,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:49:37,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:49:37,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:49:37,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (1/1) ... [2023-11-06 22:49:37,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:49:37,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:37,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:49:37,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:49:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:49:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:49:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:49:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:49:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:49:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:49:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:49:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:49:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:49:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:49:37,686 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:49:37,890 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:49:37,892 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:49:38,073 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:49:38,082 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:49:38,082 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:49:38,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:38 BoogieIcfgContainer [2023-11-06 22:49:38,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:49:38,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:49:38,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:49:38,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:49:38,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:49:36" (1/3) ... [2023-11-06 22:49:38,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e648146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:49:38, skipping insertion in model container [2023-11-06 22:49:38,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:37" (2/3) ... [2023-11-06 22:49:38,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e648146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:49:38, skipping insertion in model container [2023-11-06 22:49:38,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:38" (3/3) ... [2023-11-06 22:49:38,096 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2023-11-06 22:49:38,108 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:49:38,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:49:38,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:49:38,122 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:49:38,244 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:49:38,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 86 transitions, 176 flow [2023-11-06 22:49:38,369 INFO L124 PetriNetUnfolderBase]: 4/85 cut-off events. [2023-11-06 22:49:38,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:49:38,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-11-06 22:49:38,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 86 transitions, 176 flow [2023-11-06 22:49:38,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 173 flow [2023-11-06 22:49:38,395 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:49:38,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 173 flow [2023-11-06 22:49:38,418 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 173 flow [2023-11-06 22:49:38,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 173 flow [2023-11-06 22:49:38,467 INFO L124 PetriNetUnfolderBase]: 4/85 cut-off events. [2023-11-06 22:49:38,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:49:38,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-11-06 22:49:38,472 INFO L119 LiptonReduction]: Number of co-enabled transitions 1120 [2023-11-06 22:49:41,089 INFO L134 LiptonReduction]: Checked pairs total: 1460 [2023-11-06 22:49:41,089 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-11-06 22:49:41,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:49:41,114 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;@3724a7a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:49:41,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-06 22:49:41,116 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:49:41,116 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:49:41,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:49:41,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:41,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:49:41,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:41,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash 10473, now seen corresponding path program 1 times [2023-11-06 22:49:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781412876] [2023-11-06 22:49:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:41,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:41,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:41,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781412876] [2023-11-06 22:49:41,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781412876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:41,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:41,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:49:41,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931033209] [2023-11-06 22:49:41,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:41,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:49:41,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:49:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:49:41,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 172 [2023-11-06 22:49:41,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:41,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 172 [2023-11-06 22:49:41,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:41,572 INFO L124 PetriNetUnfolderBase]: 37/90 cut-off events. [2023-11-06 22:49:41,572 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:49:41,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 283 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-11-06 22:49:41,576 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-06 22:49:41,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-11-06 22:49:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:49:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:49:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-11-06 22:49:41,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4844961240310077 [2023-11-06 22:49:41,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-11-06 22:49:41,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-11-06 22:49:41,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:41,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-11-06 22:49:41,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,621 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 250 transitions. [2023-11-06 22:49:41,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-11-06 22:49:41,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:49:41,627 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-11-06 22:49:41,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-11-06 22:49:41,634 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-11-06 22:49:41,634 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-11-06 22:49:41,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:41,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:49:41,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:49:41,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:41,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash 325464, now seen corresponding path program 1 times [2023-11-06 22:49:41,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:41,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994281787] [2023-11-06 22:49:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:41,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:41,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994281787] [2023-11-06 22:49:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994281787] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:49:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057445036] [2023-11-06 22:49:41,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:41,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:41,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:41,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:41,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:49:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:41,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:49:41,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:41,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:49:41,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057445036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:41,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:49:41,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-06 22:49:41,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048853002] [2023-11-06 22:49:41,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:41,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:49:41,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:41,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:49:41,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:49:41,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 172 [2023-11-06 22:49:41,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:41,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 172 [2023-11-06 22:49:41,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:41,987 INFO L124 PetriNetUnfolderBase]: 37/89 cut-off events. [2023-11-06 22:49:41,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:49:41,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 87 conditions per place. [2023-11-06 22:49:41,989 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 14 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-11-06 22:49:41,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 80 flow [2023-11-06 22:49:41,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:49:41,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:49:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2023-11-06 22:49:41,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2023-11-06 22:49:41,993 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2023-11-06 22:49:41,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2023-11-06 22:49:41,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:41,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2023-11-06 22:49:41,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:41,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,000 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,000 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 4 states and 322 transitions. [2023-11-06 22:49:42,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 80 flow [2023-11-06 22:49:42,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:49:42,002 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 48 flow [2023-11-06 22:49:42,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-11-06 22:49:42,003 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2023-11-06 22:49:42,003 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 48 flow [2023-11-06 22:49:42,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:42,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:49:42,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:42,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:42,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:42,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:42,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1107076280, now seen corresponding path program 1 times [2023-11-06 22:49:42,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:42,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409798186] [2023-11-06 22:49:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:42,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:42,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:42,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409798186] [2023-11-06 22:49:42,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409798186] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:49:42,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115020331] [2023-11-06 22:49:42,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:42,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:42,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:42,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:42,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:49:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:42,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:49:42,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:42,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:42,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:42,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115020331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:42,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:49:42,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:49:42,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612449106] [2023-11-06 22:49:42,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:42,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:49:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:42,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:49:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:49:42,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 172 [2023-11-06 22:49:42,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 48 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:42,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 172 [2023-11-06 22:49:42,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:42,522 INFO L124 PetriNetUnfolderBase]: 37/92 cut-off events. [2023-11-06 22:49:42,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:49:42,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 3/67 useless extension candidates. Maximal degree in co-relation 172. Up to 89 conditions per place. [2023-11-06 22:49:42,524 INFO L140 encePairwiseOnDemand]: 169/172 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-11-06 22:49:42,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 100 flow [2023-11-06 22:49:42,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:49:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:49:42,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2023-11-06 22:49:42,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2023-11-06 22:49:42,528 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 473 transitions. [2023-11-06 22:49:42,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 473 transitions. [2023-11-06 22:49:42,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:42,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 473 transitions. [2023-11-06 22:49:42,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,535 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,535 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 48 flow. Second operand 6 states and 473 transitions. [2023-11-06 22:49:42,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 100 flow [2023-11-06 22:49:42,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:49:42,537 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 80 flow [2023-11-06 22:49:42,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=80, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-11-06 22:49:42,538 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-11-06 22:49:42,538 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 80 flow [2023-11-06 22:49:42,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:42,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:42,539 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-11-06 22:49:42,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:42,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:42,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:42,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:42,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1010662969, now seen corresponding path program 2 times [2023-11-06 22:49:42,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:42,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595194191] [2023-11-06 22:49:42,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:42,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:42,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595194191] [2023-11-06 22:49:42,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595194191] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:49:42,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565768959] [2023-11-06 22:49:42,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:49:42,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:42,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:42,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:42,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:49:42,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:49:42,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:49:42,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:49:42,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:43,041 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-06 22:49:43,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:49:43,105 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-06 22:49:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:49:43,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:49:43,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565768959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:43,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:49:43,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-11-06 22:49:43,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003046641] [2023-11-06 22:49:43,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:43,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:49:43,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:43,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:49:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:49:43,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 172 [2023-11-06 22:49:43,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:43,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:43,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 172 [2023-11-06 22:49:43,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:43,248 INFO L124 PetriNetUnfolderBase]: 21/60 cut-off events. [2023-11-06 22:49:43,248 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 22:49:43,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 60 events. 21/60 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 142 event pairs, 10 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 114. Up to 41 conditions per place. [2023-11-06 22:49:43,249 INFO L140 encePairwiseOnDemand]: 165/172 looper letters, 19 selfloop transitions, 3 changer transitions 4/26 dead transitions. [2023-11-06 22:49:43,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 144 flow [2023-11-06 22:49:43,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:49:43,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:49:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-11-06 22:49:43,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49806201550387597 [2023-11-06 22:49:43,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-11-06 22:49:43,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-11-06 22:49:43,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:43,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-11-06 22:49:43,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:43,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:43,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:43,256 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 80 flow. Second operand 3 states and 257 transitions. [2023-11-06 22:49:43,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 144 flow [2023-11-06 22:49:43,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 130 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 22:49:43,258 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 83 flow [2023-11-06 22:49:43,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-11-06 22:49:43,260 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 10 predicate places. [2023-11-06 22:49:43,260 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 83 flow [2023-11-06 22:49:43,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:43,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:43,261 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:43,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:43,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:43,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:43,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:43,467 INFO L85 PathProgramCache]: Analyzing trace with hash -939360085, now seen corresponding path program 1 times [2023-11-06 22:49:43,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998843453] [2023-11-06 22:49:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:43,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:43,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:43,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998843453] [2023-11-06 22:49:43,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998843453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:49:43,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110257624] [2023-11-06 22:49:43,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:43,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:43,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:43,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:43,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:49:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:43,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:49:43,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:43,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:49:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:43,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110257624] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:49:43,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:49:43,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:49:43,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641609659] [2023-11-06 22:49:43,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:49:43,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:49:43,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:43,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:49:43,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:49:43,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 172 [2023-11-06 22:49:43,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 83 flow. Second operand has 13 states, 13 states have (on average 76.53846153846153) internal successors, (995), 13 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:43,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:43,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 172 [2023-11-06 22:49:43,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:43,994 INFO L124 PetriNetUnfolderBase]: 17/58 cut-off events. [2023-11-06 22:49:43,995 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-06 22:49:43,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 58 events. 17/58 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 16 based on Foata normal form. 6/60 useless extension candidates. Maximal degree in co-relation 118. Up to 49 conditions per place. [2023-11-06 22:49:43,996 INFO L140 encePairwiseOnDemand]: 169/172 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-11-06 22:49:43,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 171 flow [2023-11-06 22:49:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:49:43,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:49:44,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 932 transitions. [2023-11-06 22:49:44,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45155038759689925 [2023-11-06 22:49:44,001 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 932 transitions. [2023-11-06 22:49:44,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 932 transitions. [2023-11-06 22:49:44,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:44,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 932 transitions. [2023-11-06 22:49:44,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.66666666666667) internal successors, (932), 12 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:44,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 172.0) internal successors, (2236), 13 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:44,011 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 172.0) internal successors, (2236), 13 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:44,011 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 83 flow. Second operand 12 states and 932 transitions. [2023-11-06 22:49:44,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 171 flow [2023-11-06 22:49:44,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 26 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:49:44,015 INFO L231 Difference]: Finished difference. Result has 47 places, 26 transitions, 164 flow [2023-11-06 22:49:44,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=164, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2023-11-06 22:49:44,016 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 26 predicate places. [2023-11-06 22:49:44,017 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 164 flow [2023-11-06 22:49:44,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 76.53846153846153) internal successors, (995), 13 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:44,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:44,018 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:44,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:49:44,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:44,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:44,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1601993291, now seen corresponding path program 2 times [2023-11-06 22:49:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504162319] [2023-11-06 22:49:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:49:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504162319] [2023-11-06 22:49:44,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504162319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:44,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:44,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:49:44,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472543012] [2023-11-06 22:49:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:44,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:49:44,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:49:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:49:44,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 172 [2023-11-06 22:49:44,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 164 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:44,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:44,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 172 [2023-11-06 22:49:44,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:45,043 INFO L124 PetriNetUnfolderBase]: 16/55 cut-off events. [2023-11-06 22:49:45,043 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-11-06 22:49:45,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 55 events. 16/55 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 111 event pairs, 4 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 110. Up to 21 conditions per place. [2023-11-06 22:49:45,045 INFO L140 encePairwiseOnDemand]: 166/172 looper letters, 25 selfloop transitions, 5 changer transitions 5/35 dead transitions. [2023-11-06 22:49:45,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 254 flow [2023-11-06 22:49:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:49:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:49:45,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 441 transitions. [2023-11-06 22:49:45,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4273255813953488 [2023-11-06 22:49:45,048 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 441 transitions. [2023-11-06 22:49:45,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 441 transitions. [2023-11-06 22:49:45,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:45,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 441 transitions. [2023-11-06 22:49:45,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,056 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,056 INFO L175 Difference]: Start difference. First operand has 47 places, 26 transitions, 164 flow. Second operand 6 states and 441 transitions. [2023-11-06 22:49:45,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 254 flow [2023-11-06 22:49:45,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 35 transitions, 206 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-06 22:49:45,062 INFO L231 Difference]: Finished difference. Result has 46 places, 25 transitions, 122 flow [2023-11-06 22:49:45,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=46, PETRI_TRANSITIONS=25} [2023-11-06 22:49:45,063 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 25 predicate places. [2023-11-06 22:49:45,063 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 25 transitions, 122 flow [2023-11-06 22:49:45,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:45,064 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:45,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:49:45,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:45,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:45,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1601993290, now seen corresponding path program 1 times [2023-11-06 22:49:45,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:45,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971587188] [2023-11-06 22:49:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:45,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:49:45,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:45,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971587188] [2023-11-06 22:49:45,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971587188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:45,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:45,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:49:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079131313] [2023-11-06 22:49:45,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:45,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:49:45,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:49:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:49:45,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 172 [2023-11-06 22:49:45,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 25 transitions, 122 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:45,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 172 [2023-11-06 22:49:45,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:45,711 INFO L124 PetriNetUnfolderBase]: 13/48 cut-off events. [2023-11-06 22:49:45,711 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-11-06 22:49:45,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 48 events. 13/48 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 81 event pairs, 4 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 104. Up to 21 conditions per place. [2023-11-06 22:49:45,716 INFO L140 encePairwiseOnDemand]: 166/172 looper letters, 20 selfloop transitions, 2 changer transitions 9/31 dead transitions. [2023-11-06 22:49:45,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 31 transitions, 194 flow [2023-11-06 22:49:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:49:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:49:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2023-11-06 22:49:45,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42344961240310075 [2023-11-06 22:49:45,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 437 transitions. [2023-11-06 22:49:45,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 437 transitions. [2023-11-06 22:49:45,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:45,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 437 transitions. [2023-11-06 22:49:45,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,728 INFO L175 Difference]: Start difference. First operand has 46 places, 25 transitions, 122 flow. Second operand 6 states and 437 transitions. [2023-11-06 22:49:45,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 31 transitions, 194 flow [2023-11-06 22:49:45,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 31 transitions, 185 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:49:45,734 INFO L231 Difference]: Finished difference. Result has 46 places, 21 transitions, 104 flow [2023-11-06 22:49:45,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=104, PETRI_PLACES=46, PETRI_TRANSITIONS=21} [2023-11-06 22:49:45,735 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 25 predicate places. [2023-11-06 22:49:45,736 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 104 flow [2023-11-06 22:49:45,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:45,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:45,736 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:45,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:49:45,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:45,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1602004422, now seen corresponding path program 1 times [2023-11-06 22:49:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:45,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576029763] [2023-11-06 22:49:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:45,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:49:46,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:46,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576029763] [2023-11-06 22:49:46,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576029763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:46,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:46,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:49:46,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443667975] [2023-11-06 22:49:46,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:46,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:49:46,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:46,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:49:46,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:49:46,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 172 [2023-11-06 22:49:46,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 21 transitions, 104 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:46,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 172 [2023-11-06 22:49:46,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:46,318 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-11-06 22:49:46,318 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-06 22:49:46,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 36 events. 8/36 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 70. Up to 18 conditions per place. [2023-11-06 22:49:46,319 INFO L140 encePairwiseOnDemand]: 166/172 looper letters, 20 selfloop transitions, 5 changer transitions 0/25 dead transitions. [2023-11-06 22:49:46,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 25 transitions, 164 flow [2023-11-06 22:49:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:49:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:49:46,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 361 transitions. [2023-11-06 22:49:46,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197674418604651 [2023-11-06 22:49:46,322 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 361 transitions. [2023-11-06 22:49:46,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 361 transitions. [2023-11-06 22:49:46,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:46,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 361 transitions. [2023-11-06 22:49:46,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.2) internal successors, (361), 5 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) [2023-11-06 22:49:46,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,328 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,328 INFO L175 Difference]: Start difference. First operand has 46 places, 21 transitions, 104 flow. Second operand 5 states and 361 transitions. [2023-11-06 22:49:46,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 25 transitions, 164 flow [2023-11-06 22:49:46,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 25 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:49:46,331 INFO L231 Difference]: Finished difference. Result has 42 places, 23 transitions, 126 flow [2023-11-06 22:49:46,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=23} [2023-11-06 22:49:46,336 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 21 predicate places. [2023-11-06 22:49:46,336 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 126 flow [2023-11-06 22:49:46,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:46,337 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:46,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:49:46,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:46,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1566152026, now seen corresponding path program 1 times [2023-11-06 22:49:46,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:46,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486516571] [2023-11-06 22:49:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:46,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:49:46,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486516571] [2023-11-06 22:49:46,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486516571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:46,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:46,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:49:46,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964022540] [2023-11-06 22:49:46,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:46,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:49:46,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:46,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:49:46,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:49:46,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 172 [2023-11-06 22:49:46,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 126 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:46,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 172 [2023-11-06 22:49:46,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:46,856 INFO L124 PetriNetUnfolderBase]: 5/31 cut-off events. [2023-11-06 22:49:46,857 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-11-06 22:49:46,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 31 events. 5/31 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 3 based on Foata normal form. 4/35 useless extension candidates. Maximal degree in co-relation 82. Up to 18 conditions per place. [2023-11-06 22:49:46,857 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 17 selfloop transitions, 3 changer transitions 2/22 dead transitions. [2023-11-06 22:49:46,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 22 transitions, 160 flow [2023-11-06 22:49:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:49:46,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:49:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 363 transitions. [2023-11-06 22:49:46,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42209302325581394 [2023-11-06 22:49:46,860 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 363 transitions. [2023-11-06 22:49:46,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 363 transitions. [2023-11-06 22:49:46,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:46,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 363 transitions. [2023-11-06 22:49:46,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,865 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,865 INFO L175 Difference]: Start difference. First operand has 42 places, 23 transitions, 126 flow. Second operand 5 states and 363 transitions. [2023-11-06 22:49:46,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 22 transitions, 160 flow [2023-11-06 22:49:46,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 22 transitions, 152 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:49:46,868 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 106 flow [2023-11-06 22:49:46,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-11-06 22:49:46,870 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-11-06 22:49:46,871 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 106 flow [2023-11-06 22:49:46,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:46,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:49:46,872 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:49:46,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:49:46,872 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:49:46,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1566151992, now seen corresponding path program 2 times [2023-11-06 22:49:46,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:46,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972448568] [2023-11-06 22:49:46,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:46,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:49:47,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972448568] [2023-11-06 22:49:47,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972448568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:49:47,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:49:47,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:49:47,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208653773] [2023-11-06 22:49:47,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:49:47,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:49:47,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:49:47,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:49:47,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:49:47,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 172 [2023-11-06 22:49:47,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 106 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:47,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:49:47,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 172 [2023-11-06 22:49:47,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:49:47,457 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-11-06 22:49:47,457 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-11-06 22:49:47,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 21 events. 2/21 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 1 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 60. Up to 15 conditions per place. [2023-11-06 22:49:47,458 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-11-06 22:49:47,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 19 transitions, 138 flow [2023-11-06 22:49:47,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:49:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:49:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 360 transitions. [2023-11-06 22:49:47,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4186046511627907 [2023-11-06 22:49:47,461 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 360 transitions. [2023-11-06 22:49:47,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 360 transitions. [2023-11-06 22:49:47,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:49:47,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 360 transitions. [2023-11-06 22:49:47,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:47,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:47,465 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:47,465 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 106 flow. Second operand 5 states and 360 transitions. [2023-11-06 22:49:47,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 19 transitions, 138 flow [2023-11-06 22:49:47,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 19 transitions, 127 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:49:47,467 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-11-06 22:49:47,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-11-06 22:49:47,469 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 17 predicate places. [2023-11-06 22:49:47,469 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-11-06 22:49:47,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:47,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-06 22:49:47,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-06 22:49:47,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-06 22:49:47,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-06 22:49:47,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-06 22:49:47,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-06 22:49:47,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-11-06 22:49:47,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-06 22:49:47,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-06 22:49:47,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:49:47,475 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:49:47,480 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:49:47,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:49:47,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:49:47 BasicIcfg [2023-11-06 22:49:47,484 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:49:47,485 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:49:47,485 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:49:47,485 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:49:47,486 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:38" (3/4) ... [2023-11-06 22:49:47,487 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:49:47,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 22:49:47,495 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 22:49:47,496 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:49:47,496 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:49:47,542 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:49:47,543 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:49:47,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:49:47,543 INFO L158 Benchmark]: Toolchain (without parser) took 11010.13ms. Allocated memory was 130.0MB in the beginning and 222.3MB in the end (delta: 92.3MB). Free memory was 83.5MB in the beginning and 89.4MB in the end (delta: -5.9MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,544 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:49:47,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 936.43ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 55.3MB in the end (delta: 27.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.43ms. Allocated memory is still 130.0MB. Free memory was 55.3MB in the beginning and 52.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,545 INFO L158 Benchmark]: Boogie Preprocessor took 34.76ms. Allocated memory is still 130.0MB. Free memory was 52.8MB in the beginning and 51.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,546 INFO L158 Benchmark]: RCFGBuilder took 516.57ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 51.1MB in the beginning and 146.2MB in the end (delta: -95.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,546 INFO L158 Benchmark]: TraceAbstraction took 9396.24ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 145.1MB in the beginning and 92.5MB in the end (delta: 52.6MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,546 INFO L158 Benchmark]: Witness Printer took 58.04ms. Allocated memory is still 222.3MB. Free memory was 92.5MB in the beginning and 89.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:49:47,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 936.43ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 55.3MB in the end (delta: 27.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.43ms. Allocated memory is still 130.0MB. Free memory was 55.3MB in the beginning and 52.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.76ms. Allocated memory is still 130.0MB. Free memory was 52.8MB in the beginning and 51.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.57ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 51.1MB in the beginning and 146.2MB in the end (delta: -95.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9396.24ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 145.1MB in the beginning and 92.5MB in the end (delta: 52.6MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. * Witness Printer took 58.04ms. Allocated memory is still 222.3MB. Free memory was 92.5MB in the beginning and 89.4MB in the end (delta: 3.1MB). 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: 2.7s, 85 PlacesBefore, 21 PlacesAfterwards, 85 TransitionsBefore, 18 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 86 TotalNumberOfCompositions, 1460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1072, independent: 989, independent conditional: 0, independent unconditional: 989, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 652, independent: 634, independent conditional: 0, independent unconditional: 634, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1072, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 652, unknown conditional: 0, unknown unconditional: 652] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: 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 3 procedures, 112 locations, 9 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: 9.2s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 720 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 507 mSDsluCounter, 274 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 230 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1065 IncrementalHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 44 mSDtfsCounter, 1065 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=5, InterpolantAutomatonStates: 55, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 152 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1207 SizeOfPredicates, 2 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 286/330 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:49:47,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea12bfb-fcd2-438d-9755-04fd2b5bda87/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