./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:54:04,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:54:04,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:54:04,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:54:04,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:54:04,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:54:04,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:54:04,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:54:04,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:54:04,856 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:54:04,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:54:04,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:54:04,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:54:04,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:54:04,860 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:54:04,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:54:04,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:54:04,863 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:54:04,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:54:04,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:54:04,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:54:04,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:54:04,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:54:04,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:54:04,868 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:54:04,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:54:04,870 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:54:04,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:54:04,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:54:04,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:54:04,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:54:04,892 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:54:04,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:54:04,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:04,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:54:04,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:54:04,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:54:04,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:54:04,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:54:04,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:54:04,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:54:04,900 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:54:04,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:54:04,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:54:04,901 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_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2023-11-26 11:54:05,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:54:05,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:54:05,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:54:05,382 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:54:05,383 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:54:05,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-11-26 11:54:09,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:54:09,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:54:09,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-11-26 11:54:09,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/data/94450fab0/e7e6a9d173864820ada150d20378d3bf/FLAGf58b0b2dd [2023-11-26 11:54:09,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/data/94450fab0/e7e6a9d173864820ada150d20378d3bf [2023-11-26 11:54:09,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:54:09,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:54:09,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:09,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:54:09,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:54:09,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:09" (1/1) ... [2023-11-26 11:54:09,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3965e361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:09, skipping insertion in model container [2023-11-26 11:54:09,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:09" (1/1) ... [2023-11-26 11:54:09,735 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:54:10,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:10,225 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:54:10,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:10,391 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:54:10,391 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:54:10,400 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:54:10,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10 WrapperNode [2023-11-26 11:54:10,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:10,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:10,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:54:10,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:54:10,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,504 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 207 [2023-11-26 11:54:10,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:10,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:54:10,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:54:10,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:54:10,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,533 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,576 INFO L175 MemorySlicer]: Split 22 memory accesses to 6 slices as follows [16, 2, 1, 1, 1, 1]. 73 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2, 0, 0, 0, 0]. The 9 writes are split as follows [5, 0, 1, 1, 1, 1]. [2023-11-26 11:54:10,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:54:10,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:54:10,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:54:10,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:54:10,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (1/1) ... [2023-11-26 11:54:10,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:10,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:10,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:54:10,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:54:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:54:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:54:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:54:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:54:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:54:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:54:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:54:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:54:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:54:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:54:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:54:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:54:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:54:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:54:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:54:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:54:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 11:54:10,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 11:54:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 11:54:10,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 11:54:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 11:54:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 11:54:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-26 11:54:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-26 11:54:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:54:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:54:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:54:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:54:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:54:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:54:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:54:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:54:10,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:54:10,772 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:54:10,985 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:54:10,988 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:54:11,625 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:54:12,232 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:54:12,232 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:54:12,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:12 BoogieIcfgContainer [2023-11-26 11:54:12,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:54:12,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:54:12,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:54:12,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:54:12,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:54:09" (1/3) ... [2023-11-26 11:54:12,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbbdb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:12, skipping insertion in model container [2023-11-26 11:54:12,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:10" (2/3) ... [2023-11-26 11:54:12,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbbdb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:12, skipping insertion in model container [2023-11-26 11:54:12,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:12" (3/3) ... [2023-11-26 11:54:12,246 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2023-11-26 11:54:12,257 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:54:12,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:54:12,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 11:54:12,270 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:54:12,372 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:54:12,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 116 flow [2023-11-26 11:54:12,478 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2023-11-26 11:54:12,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:12,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 124 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 11:54:12,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 50 transitions, 116 flow [2023-11-26 11:54:12,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 46 transitions, 104 flow [2023-11-26 11:54:12,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:54:12,522 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19283d56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:54:12,523 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-26 11:54:12,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:54:12,537 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-26 11:54:12,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:12,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:12,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:12,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:54:12,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1604572794, now seen corresponding path program 1 times [2023-11-26 11:54:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:12,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207368861] [2023-11-26 11:54:12,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:12,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:12,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:12,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207368861] [2023-11-26 11:54:12,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207368861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:12,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:12,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:54:12,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478405795] [2023-11-26 11:54:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:12,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:12,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:13,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:13,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:13,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-26 11:54:13,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:13,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:13,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-26 11:54:13,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:18,090 INFO L124 PetriNetUnfolderBase]: 18828/25209 cut-off events. [2023-11-26 11:54:18,091 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2023-11-26 11:54:18,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50712 conditions, 25209 events. 18828/25209 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 2394. Compared 169714 event pairs, 8732 based on Foata normal form. 0/17752 useless extension candidates. Maximal degree in co-relation 50700. Up to 25057 conditions per place. [2023-11-26 11:54:18,376 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 47 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2023-11-26 11:54:18,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 255 flow [2023-11-26 11:54:18,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2023-11-26 11:54:18,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.74 [2023-11-26 11:54:18,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 111 transitions. [2023-11-26 11:54:18,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 111 transitions. [2023-11-26 11:54:18,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:18,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 111 transitions. [2023-11-26 11:54:18,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2023-11-26 11:54:18,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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) [2023-11-26 11:54:18,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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) [2023-11-26 11:54:18,405 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 104 flow. Second operand 3 states and 111 transitions. [2023-11-26 11:54:18,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 255 flow [2023-11-26 11:54:18,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 248 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:54:18,414 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 147 flow [2023-11-26 11:54:18,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2023-11-26 11:54:18,420 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2023-11-26 11:54:18,420 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 147 flow [2023-11-26 11:54:18,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:18,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:18,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:18,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:54:18,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:54:18,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash 467952690, now seen corresponding path program 1 times [2023-11-26 11:54:18,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:18,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086876442] [2023-11-26 11:54:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:18,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:18,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:18,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086876442] [2023-11-26 11:54:18,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086876442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:18,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:18,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:18,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433203877] [2023-11-26 11:54:18,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:18,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:18,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:18,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:18,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:18,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-26 11:54:18,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2023-11-26 11:54:18,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:18,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-26 11:54:18,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:22,289 INFO L124 PetriNetUnfolderBase]: 14850/20643 cut-off events. [2023-11-26 11:54:22,289 INFO L125 PetriNetUnfolderBase]: For 1321/1321 co-relation queries the response was YES. [2023-11-26 11:54:22,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49167 conditions, 20643 events. 14850/20643 cut-off events. For 1321/1321 co-relation queries the response was YES. Maximal size of possible extension queue 1791. Compared 141006 event pairs, 3082 based on Foata normal form. 0/16282 useless extension candidates. Maximal degree in co-relation 49156. Up to 12041 conditions per place. [2023-11-26 11:54:22,460 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 64 selfloop transitions, 13 changer transitions 0/90 dead transitions. [2023-11-26 11:54:22,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 90 transitions, 407 flow [2023-11-26 11:54:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:54:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2023-11-26 11:54:22,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.745 [2023-11-26 11:54:22,463 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 149 transitions. [2023-11-26 11:54:22,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 149 transitions. [2023-11-26 11:54:22,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:22,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 149 transitions. [2023-11-26 11:54:22,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2023-11-26 11:54:22,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 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) [2023-11-26 11:54:22,468 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 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) [2023-11-26 11:54:22,468 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 147 flow. Second operand 4 states and 149 transitions. [2023-11-26 11:54:22,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 90 transitions, 407 flow [2023-11-26 11:54:22,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:54:22,472 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 245 flow [2023-11-26 11:54:22,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2023-11-26 11:54:22,474 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2023-11-26 11:54:22,474 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 245 flow [2023-11-26 11:54:22,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2023-11-26 11:54:22,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:22,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:22,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:54:22,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:54:22,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash 467952689, now seen corresponding path program 1 times [2023-11-26 11:54:22,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:22,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514498221] [2023-11-26 11:54:22,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:22,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:22,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:22,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:22,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514498221] [2023-11-26 11:54:22,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514498221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:22,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:22,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:22,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904813827] [2023-11-26 11:54:22,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:22,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:22,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:22,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:22,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:22,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-26 11:54:22,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2023-11-26 11:54:22,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:22,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-26 11:54:22,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:24,455 INFO L124 PetriNetUnfolderBase]: 6492/8913 cut-off events. [2023-11-26 11:54:24,456 INFO L125 PetriNetUnfolderBase]: For 8061/8061 co-relation queries the response was YES. [2023-11-26 11:54:24,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24330 conditions, 8913 events. 6492/8913 cut-off events. For 8061/8061 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 53135 event pairs, 2220 based on Foata normal form. 1656/9472 useless extension candidates. Maximal degree in co-relation 24316. Up to 8760 conditions per place. [2023-11-26 11:54:24,535 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 47 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2023-11-26 11:54:24,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 329 flow [2023-11-26 11:54:24,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:54:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2023-11-26 11:54:24,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2023-11-26 11:54:24,540 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 120 transitions. [2023-11-26 11:54:24,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 120 transitions. [2023-11-26 11:54:24,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:24,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 120 transitions. [2023-11-26 11:54:24,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2023-11-26 11:54:24,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 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) [2023-11-26 11:54:24,544 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 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) [2023-11-26 11:54:24,545 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 245 flow. Second operand 4 states and 120 transitions. [2023-11-26 11:54:24,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 329 flow [2023-11-26 11:54:24,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 65 transitions, 306 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-26 11:54:24,609 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 176 flow [2023-11-26 11:54:24,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2023-11-26 11:54:24,613 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2023-11-26 11:54:24,613 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 176 flow [2023-11-26 11:54:24,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2023-11-26 11:54:24,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:24,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:24,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:54:24,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:54:24,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash 62911565, now seen corresponding path program 1 times [2023-11-26 11:54:24,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:24,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970532936] [2023-11-26 11:54:24,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:24,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:24,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:24,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970532936] [2023-11-26 11:54:24,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970532936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:24,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:24,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:54:24,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818538520] [2023-11-26 11:54:24,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:24,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:54:24,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:24,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:54:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:54:24,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-26 11:54:24,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2023-11-26 11:54:24,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:24,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-26 11:54:24,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:26,267 INFO L124 PetriNetUnfolderBase]: 4404/6081 cut-off events. [2023-11-26 11:54:26,267 INFO L125 PetriNetUnfolderBase]: For 2721/2721 co-relation queries the response was YES. [2023-11-26 11:54:26,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15301 conditions, 6081 events. 4404/6081 cut-off events. For 2721/2721 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 34025 event pairs, 212 based on Foata normal form. 0/5872 useless extension candidates. Maximal degree in co-relation 15288. Up to 2833 conditions per place. [2023-11-26 11:54:26,307 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 71 selfloop transitions, 13 changer transitions 4/101 dead transitions. [2023-11-26 11:54:26,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 482 flow [2023-11-26 11:54:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:54:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:54:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2023-11-26 11:54:26,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.708 [2023-11-26 11:54:26,314 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 177 transitions. [2023-11-26 11:54:26,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 177 transitions. [2023-11-26 11:54:26,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:26,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 177 transitions. [2023-11-26 11:54:26,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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) [2023-11-26 11:54:26,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 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) [2023-11-26 11:54:26,319 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 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) [2023-11-26 11:54:26,320 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 176 flow. Second operand 5 states and 177 transitions. [2023-11-26 11:54:26,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 482 flow [2023-11-26 11:54:26,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:26,324 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 212 flow [2023-11-26 11:54:26,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2023-11-26 11:54:26,327 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2023-11-26 11:54:26,328 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 212 flow [2023-11-26 11:54:26,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2023-11-26 11:54:26,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:26,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:26,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:54:26,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:54:26,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:26,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1674695531, now seen corresponding path program 1 times [2023-11-26 11:54:26,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:26,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458863625] [2023-11-26 11:54:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:26,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:26,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:26,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:26,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458863625] [2023-11-26 11:54:26,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458863625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:26,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:26,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:54:26,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611372794] [2023-11-26 11:54:26,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:26,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:26,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:26,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:26,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-26 11:54:26,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2023-11-26 11:54:26,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:26,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-26 11:54:26,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:27,675 INFO L124 PetriNetUnfolderBase]: 3588/4977 cut-off events. [2023-11-26 11:54:27,676 INFO L125 PetriNetUnfolderBase]: For 5637/5637 co-relation queries the response was YES. [2023-11-26 11:54:27,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14266 conditions, 4977 events. 3588/4977 cut-off events. For 5637/5637 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 28117 event pairs, 68 based on Foata normal form. 192/5152 useless extension candidates. Maximal degree in co-relation 14252. Up to 2136 conditions per place. [2023-11-26 11:54:27,693 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2023-11-26 11:54:27,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 93 transitions, 446 flow [2023-11-26 11:54:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2023-11-26 11:54:27,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.62 [2023-11-26 11:54:27,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 186 transitions. [2023-11-26 11:54:27,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 186 transitions. [2023-11-26 11:54:27,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:27,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 186 transitions. [2023-11-26 11:54:27,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2023-11-26 11:54:27,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 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) [2023-11-26 11:54:27,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 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) [2023-11-26 11:54:27,698 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 212 flow. Second operand 6 states and 186 transitions. [2023-11-26 11:54:27,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 93 transitions, 446 flow [2023-11-26 11:54:27,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 391 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-26 11:54:27,730 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2023-11-26 11:54:27,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2023-11-26 11:54:27,731 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -3 predicate places. [2023-11-26 11:54:27,731 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2023-11-26 11:54:27,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2023-11-26 11:54:27,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-26 11:54:27,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-26 11:54:27,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-26 11:54:27,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-26 11:54:27,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-26 11:54:27,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-26 11:54:27,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-26 11:54:27,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-26 11:54:27,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-26 11:54:27,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-26 11:54:27,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-26 11:54:27,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-26 11:54:27,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-26 11:54:27,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-26 11:54:27,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-26 11:54:27,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-26 11:54:27,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-26 11:54:27,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-26 11:54:27,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-26 11:54:27,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-26 11:54:27,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:54:27,739 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 11:54:27,745 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:54:27,745 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:54:27,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:54:27 BasicIcfg [2023-11-26 11:54:27,752 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:54:27,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:54:27,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:54:27,753 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:54:27,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:12" (3/4) ... [2023-11-26 11:54:27,755 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:54:27,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 11:54:27,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 11:54:27,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-26 11:54:27,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-26 11:54:27,766 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 83 nodes and edges [2023-11-26 11:54:27,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-26 11:54:27,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:54:27,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:54:27,867 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:54:27,867 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:54:27,867 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:54:27,868 INFO L158 Benchmark]: Toolchain (without parser) took 18215.02ms. Allocated memory was 190.8MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 158.7MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 365.9MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,868 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 130.0MB. Free memory was 102.8MB in the beginning and 102.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:54:27,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.01ms. Allocated memory is still 190.8MB. Free memory was 161.2MB in the beginning and 137.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.66ms. Allocated memory is still 190.8MB. Free memory was 136.9MB in the beginning and 133.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,870 INFO L158 Benchmark]: Boogie Preprocessor took 106.57ms. Allocated memory is still 190.8MB. Free memory was 133.9MB in the beginning and 129.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,870 INFO L158 Benchmark]: RCFGBuilder took 1619.90ms. Allocated memory is still 190.8MB. Free memory was 129.8MB in the beginning and 128.0MB in the end (delta: 1.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,870 INFO L158 Benchmark]: TraceAbstraction took 15514.98ms. Allocated memory was 190.8MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 128.0MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 872.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,871 INFO L158 Benchmark]: Witness Printer took 115.09ms. Allocated memory is still 3.1GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,873 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 130.0MB. Free memory was 102.8MB in the beginning and 102.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.01ms. Allocated memory is still 190.8MB. Free memory was 161.2MB in the beginning and 137.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.66ms. Allocated memory is still 190.8MB. Free memory was 136.9MB in the beginning and 133.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.57ms. Allocated memory is still 190.8MB. Free memory was 133.9MB in the beginning and 129.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1619.90ms. Allocated memory is still 190.8MB. Free memory was 129.8MB in the beginning and 128.0MB in the end (delta: 1.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15514.98ms. Allocated memory was 190.8MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 128.0MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 872.2MB. Max. memory is 16.1GB. * Witness Printer took 115.09ms. Allocated memory is still 3.1GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 91 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 462 IncrementalHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 2 mSDtfsCounter, 462 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:54:27,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaa8786b-6f21-48a3-a25f-46fe1814d405/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE