./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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:03:39,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:03:39,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:03:39,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:03:39,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:03:39,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:03:39,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:03:39,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:03:39,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:03:39,922 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:03:39,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:03:39,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:03:39,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:03:39,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:03:39,925 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:03:39,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:03:39,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:03:39,927 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:03:39,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:03:39,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:03:39,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:03:39,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:03:39,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:03:39,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:03:39,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:03:39,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:03:39,931 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:03:39,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:03:39,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:03:39,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:03:39,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:03:39,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:03:39,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:03:39,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:03:39,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:03:39,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:03:39,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:03:39,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:03:39,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:03:39,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:03:39,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:03:39,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:03:39,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:03:39,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:03:39,936 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_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2023-11-29 03:03:40,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:03:40,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:03:40,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:03:40,180 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:03:40,180 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:03:40,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-11-29 03:03:42,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:03:43,291 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:03:43,292 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-11-29 03:03:43,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/data/a0e6acec0/b2030278d1fe4dda907bb8917de4dff8/FLAG2280fef7d [2023-11-29 03:03:43,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/data/a0e6acec0/b2030278d1fe4dda907bb8917de4dff8 [2023-11-29 03:03:43,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:03:43,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:03:43,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:03:43,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:03:43,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:03:43,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fea4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43, skipping insertion in model container [2023-11-29 03:03:43,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,389 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:03:43,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:03:43,742 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:03:43,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:03:43,835 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:03:43,835 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:03:43,842 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:03:43,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43 WrapperNode [2023-11-29 03:03:43,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:03:43,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:03:43,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:03:43,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:03:43,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,896 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 207 [2023-11-29 03:03:43,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:03:43,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:03:43,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:03:43,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:03:43,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,914 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,934 INFO L175 MemorySlicer]: Split 22 memory accesses to 6 slices as follows [2, 16, 1, 1, 1, 1]. 73 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0, 0, 0, 0]. The 9 writes are split as follows [0, 5, 1, 1, 1, 1]. [2023-11-29 03:03:43,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:03:43,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:03:43,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:03:43,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:03:43,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (1/1) ... [2023-11-29 03:03:43,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:03:43,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:43,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:03:43,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:03:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:03:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 03:03:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 03:03:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 03:03:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 03:03:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 03:03:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:03:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 03:03:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 03:03:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 03:03:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 03:03:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 03:03:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 03:03:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:03:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:03:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:03:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 03:03:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 03:03:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 03:03:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 03:03:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 03:03:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 03:03:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-29 03:03:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-29 03:03:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:03:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 03:03:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 03:03:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 03:03:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 03:03:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 03:03:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 03:03:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:03:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:03:44,037 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:03:44,221 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:03:44,223 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:03:44,665 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:03:45,033 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:03:45,033 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:03:45,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:03:45 BoogieIcfgContainer [2023-11-29 03:03:45,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:03:45,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:03:45,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:03:45,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:03:45,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:03:43" (1/3) ... [2023-11-29 03:03:45,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e1364e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:03:45, skipping insertion in model container [2023-11-29 03:03:45,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:03:43" (2/3) ... [2023-11-29 03:03:45,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e1364e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:03:45, skipping insertion in model container [2023-11-29 03:03:45,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:03:45" (3/3) ... [2023-11-29 03:03:45,042 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2023-11-29 03:03:45,052 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:03:45,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:03:45,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 03:03:45,063 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:03:45,133 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 03:03:45,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 116 flow [2023-11-29 03:03:45,199 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2023-11-29 03:03:45,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:03:45,202 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. [2023-11-29 03:03:45,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 50 transitions, 116 flow [2023-11-29 03:03:45,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 46 transitions, 104 flow [2023-11-29 03:03:45,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:03:45,224 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;@30b118eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:03:45,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-29 03:03:45,232 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:03:45,233 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-29 03:03:45,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:03:45,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:03:45,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:45,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 03:03:45,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1604572794, now seen corresponding path program 1 times [2023-11-29 03:03:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473833814] [2023-11-29 03:03:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:03:45,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:45,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473833814] [2023-11-29 03:03:45,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473833814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:45,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:45,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 03:03:45,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534351864] [2023-11-29 03:03:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:45,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:03:45,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:45,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:03:45,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:03:45,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-29 03:03:45,544 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) [2023-11-29 03:03:45,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:03:45,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-29 03:03:45,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:03:49,457 INFO L124 PetriNetUnfolderBase]: 18828/25209 cut-off events. [2023-11-29 03:03:49,457 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2023-11-29 03:03:49,522 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. [2023-11-29 03:03:49,698 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 47 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2023-11-29 03:03:49,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 255 flow [2023-11-29 03:03:49,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:03:49,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:03:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2023-11-29 03:03:49,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.74 [2023-11-29 03:03:49,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 111 transitions. [2023-11-29 03:03:49,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 111 transitions. [2023-11-29 03:03:49,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:03:49,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 111 transitions. [2023-11-29 03:03:49,720 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) [2023-11-29 03:03:49,724 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) [2023-11-29 03:03:49,724 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) [2023-11-29 03:03:49,726 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 104 flow. Second operand 3 states and 111 transitions. [2023-11-29 03:03:49,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 255 flow [2023-11-29 03:03:49,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 248 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 03:03:49,734 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 147 flow [2023-11-29 03:03:49,736 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} [2023-11-29 03:03:49,740 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2023-11-29 03:03:49,740 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 147 flow [2023-11-29 03:03:49,740 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) [2023-11-29 03:03:49,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:03:49,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:49,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:03:49,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 03:03:49,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash 467952690, now seen corresponding path program 1 times [2023-11-29 03:03:49,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:49,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600561846] [2023-11-29 03:03:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:03:49,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:49,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600561846] [2023-11-29 03:03:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600561846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:49,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:49,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:03:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064321095] [2023-11-29 03:03:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:49,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:03:49,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:49,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:03:49,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:03:49,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-29 03:03:49,852 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) [2023-11-29 03:03:49,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:03:49,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-29 03:03:49,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:03:52,666 INFO L124 PetriNetUnfolderBase]: 14850/20643 cut-off events. [2023-11-29 03:03:52,667 INFO L125 PetriNetUnfolderBase]: For 1321/1321 co-relation queries the response was YES. [2023-11-29 03:03:52,713 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. [2023-11-29 03:03:52,815 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 64 selfloop transitions, 13 changer transitions 0/90 dead transitions. [2023-11-29 03:03:52,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 90 transitions, 407 flow [2023-11-29 03:03:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:03:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:03:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2023-11-29 03:03:52,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.745 [2023-11-29 03:03:52,818 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 149 transitions. [2023-11-29 03:03:52,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 149 transitions. [2023-11-29 03:03:52,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:03:52,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 149 transitions. [2023-11-29 03:03:52,821 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) [2023-11-29 03:03:52,823 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) [2023-11-29 03:03:52,823 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) [2023-11-29 03:03:52,824 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 147 flow. Second operand 4 states and 149 transitions. [2023-11-29 03:03:52,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 90 transitions, 407 flow [2023-11-29 03:03:52,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:03:52,828 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 245 flow [2023-11-29 03:03:52,828 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} [2023-11-29 03:03:52,829 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2023-11-29 03:03:52,830 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 245 flow [2023-11-29 03:03:52,830 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) [2023-11-29 03:03:52,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:03:52,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:52,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:03:52,831 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 03:03:52,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash 467952689, now seen corresponding path program 1 times [2023-11-29 03:03:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:52,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95623371] [2023-11-29 03:03:52,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:52,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:03:52,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:52,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95623371] [2023-11-29 03:03:52,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95623371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:52,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:52,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:03:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769989065] [2023-11-29 03:03:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:52,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:03:52,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:52,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:03:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:03:52,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-29 03:03:52,919 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) [2023-11-29 03:03:52,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:03:52,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-29 03:03:52,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:03:54,104 INFO L124 PetriNetUnfolderBase]: 6492/8913 cut-off events. [2023-11-29 03:03:54,104 INFO L125 PetriNetUnfolderBase]: For 8061/8061 co-relation queries the response was YES. [2023-11-29 03:03:54,121 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. [2023-11-29 03:03:54,165 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 47 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2023-11-29 03:03:54,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 329 flow [2023-11-29 03:03:54,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:03:54,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:03:54,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2023-11-29 03:03:54,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2023-11-29 03:03:54,168 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 120 transitions. [2023-11-29 03:03:54,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 120 transitions. [2023-11-29 03:03:54,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:03:54,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 120 transitions. [2023-11-29 03:03:54,170 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) [2023-11-29 03:03:54,171 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) [2023-11-29 03:03:54,172 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) [2023-11-29 03:03:54,172 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 245 flow. Second operand 4 states and 120 transitions. [2023-11-29 03:03:54,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 329 flow [2023-11-29 03:03:54,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 65 transitions, 306 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-29 03:03:54,203 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 176 flow [2023-11-29 03:03:54,203 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} [2023-11-29 03:03:54,204 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2023-11-29 03:03:54,204 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 176 flow [2023-11-29 03:03:54,204 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) [2023-11-29 03:03:54,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:03:54,205 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] [2023-11-29 03:03:54,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:03:54,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 03:03:54,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:54,206 INFO L85 PathProgramCache]: Analyzing trace with hash 62911565, now seen corresponding path program 1 times [2023-11-29 03:03:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:54,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042467248] [2023-11-29 03:03:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:54,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:54,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:03:54,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:54,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042467248] [2023-11-29 03:03:54,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042467248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:54,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:54,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:03:54,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506534929] [2023-11-29 03:03:54,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:54,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:03:54,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:54,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:03:54,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:03:54,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-29 03:03:54,348 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) [2023-11-29 03:03:54,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:03:54,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-29 03:03:54,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:03:55,612 INFO L124 PetriNetUnfolderBase]: 4404/6081 cut-off events. [2023-11-29 03:03:55,613 INFO L125 PetriNetUnfolderBase]: For 2721/2721 co-relation queries the response was YES. [2023-11-29 03:03:55,624 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. [2023-11-29 03:03:55,651 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 71 selfloop transitions, 13 changer transitions 4/101 dead transitions. [2023-11-29 03:03:55,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 482 flow [2023-11-29 03:03:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:03:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 03:03:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2023-11-29 03:03:55,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.708 [2023-11-29 03:03:55,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 177 transitions. [2023-11-29 03:03:55,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 177 transitions. [2023-11-29 03:03:55,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:03:55,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 177 transitions. [2023-11-29 03:03:55,657 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) [2023-11-29 03:03:55,658 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) [2023-11-29 03:03:55,659 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) [2023-11-29 03:03:55,659 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 176 flow. Second operand 5 states and 177 transitions. [2023-11-29 03:03:55,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 482 flow [2023-11-29 03:03:55,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:03:55,665 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 212 flow [2023-11-29 03:03:55,665 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} [2023-11-29 03:03:55,666 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2023-11-29 03:03:55,667 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 212 flow [2023-11-29 03:03:55,667 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) [2023-11-29 03:03:55,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:03:55,667 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] [2023-11-29 03:03:55,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:03:55,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 03:03:55,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1674695531, now seen corresponding path program 1 times [2023-11-29 03:03:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:55,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268002501] [2023-11-29 03:03:55,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:03:55,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:55,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268002501] [2023-11-29 03:03:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268002501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:55,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:03:55,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852950310] [2023-11-29 03:03:55,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:55,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:03:55,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:03:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:03:55,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2023-11-29 03:03:55,949 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) [2023-11-29 03:03:55,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:03:55,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2023-11-29 03:03:55,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:03:57,177 INFO L124 PetriNetUnfolderBase]: 3588/4977 cut-off events. [2023-11-29 03:03:57,178 INFO L125 PetriNetUnfolderBase]: For 5637/5637 co-relation queries the response was YES. [2023-11-29 03:03:57,187 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. [2023-11-29 03:03:57,190 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2023-11-29 03:03:57,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 93 transitions, 446 flow [2023-11-29 03:03:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:03:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:03:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2023-11-29 03:03:57,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.62 [2023-11-29 03:03:57,192 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 186 transitions. [2023-11-29 03:03:57,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 186 transitions. [2023-11-29 03:03:57,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:03:57,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 186 transitions. [2023-11-29 03:03:57,194 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) [2023-11-29 03:03:57,195 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) [2023-11-29 03:03:57,195 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) [2023-11-29 03:03:57,195 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 212 flow. Second operand 6 states and 186 transitions. [2023-11-29 03:03:57,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 93 transitions, 446 flow [2023-11-29 03:03:57,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 391 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-29 03:03:57,223 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2023-11-29 03:03:57,224 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} [2023-11-29 03:03:57,224 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -3 predicate places. [2023-11-29 03:03:57,225 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2023-11-29 03:03:57,225 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) [2023-11-29 03:03:57,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-29 03:03:57,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-29 03:03:57,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-29 03:03:57,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-29 03:03:57,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-29 03:03:57,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-29 03:03:57,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-29 03:03:57,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-29 03:03:57,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-29 03:03:57,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-29 03:03:57,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-29 03:03:57,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-29 03:03:57,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-29 03:03:57,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-29 03:03:57,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-29 03:03:57,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-29 03:03:57,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-29 03:03:57,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-29 03:03:57,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-29 03:03:57,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-29 03:03:57,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:03:57,232 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 03:03:57,237 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 03:03:57,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:03:57,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:03:57 BasicIcfg [2023-11-29 03:03:57,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:03:57,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:03:57,242 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:03:57,243 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:03:57,243 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:03:45" (3/4) ... [2023-11-29 03:03:57,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:03:57,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-29 03:03:57,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-29 03:03:57,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-29 03:03:57,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-29 03:03:57,252 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 83 nodes and edges [2023-11-29 03:03:57,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-29 03:03:57,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 03:03:57,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:03:57,334 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:03:57,335 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:03:57,335 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:03:57,336 INFO L158 Benchmark]: Toolchain (without parser) took 14010.24ms. Allocated memory was 134.2MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 96.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-11-29 03:03:57,336 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:03:57,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.06ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 71.9MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 03:03:57,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.45ms. Allocated memory is still 134.2MB. Free memory was 71.9MB in the beginning and 68.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:03:57,338 INFO L158 Benchmark]: Boogie Preprocessor took 67.22ms. Allocated memory is still 134.2MB. Free memory was 68.9MB in the beginning and 64.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:03:57,338 INFO L158 Benchmark]: RCFGBuilder took 1069.22ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 64.3MB in the beginning and 122.8MB in the end (delta: -58.5MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-11-29 03:03:57,338 INFO L158 Benchmark]: TraceAbstraction took 12205.66ms. Allocated memory was 169.9MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 121.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-11-29 03:03:57,339 INFO L158 Benchmark]: Witness Printer took 93.03ms. Allocated memory is still 2.4GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:03:57,340 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.06ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 71.9MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.45ms. Allocated memory is still 134.2MB. Free memory was 71.9MB in the beginning and 68.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.22ms. Allocated memory is still 134.2MB. Free memory was 68.9MB in the beginning and 64.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1069.22ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 64.3MB in the beginning and 122.8MB in the end (delta: -58.5MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12205.66ms. Allocated memory was 169.9MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 121.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 93.03ms. Allocated memory is still 2.4GB. Free memory was 1.2GB in the beginning and 1.2GB 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: 12.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.8s 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, 0.6s 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! [2023-11-29 03:03:57,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63f2a66-02dd-422e-8cc7-86d97731cf2e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE