./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.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_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/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_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/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_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/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 e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:25:13,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:25:13,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:25:13,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:25:13,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:25:13,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:25:13,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:25:13,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:25:13,799 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:25:13,799 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:25:13,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:25:13,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:25:13,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:25:13,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:25:13,803 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:25:13,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:25:13,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:25:13,805 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:25:13,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:25:13,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:25:13,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:25:13,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:25:13,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:25:13,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:25:13,809 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:25:13,809 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:25:13,810 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:25:13,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:25:13,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:25:13,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:25:13,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:25:13,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:25:13,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:25:13,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:25:13,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:25:13,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:25:13,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:25:13,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:25:13,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:25:13,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:25:13,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:25:13,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:25:13,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:25:13,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:25:13,816 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_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 [2023-11-29 05:25:14,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:25:14,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:25:14,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:25:14,087 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:25:14,088 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:25:14,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2023-11-29 05:25:16,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:25:17,194 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:25:17,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2023-11-29 05:25:17,215 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/data/c7c577f1d/058f28fa829642a2b140f5039bfed894/FLAG579f4d3c2 [2023-11-29 05:25:17,230 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/data/c7c577f1d/058f28fa829642a2b140f5039bfed894 [2023-11-29 05:25:17,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:25:17,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:25:17,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:25:17,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:25:17,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:25:17,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:17,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d1499c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17, skipping insertion in model container [2023-11-29 05:25:17,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:17,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:25:17,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:25:17,742 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:25:17,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:25:17,853 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:25:17,853 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:25:17,861 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:25:17,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17 WrapperNode [2023-11-29 05:25:17,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:25:17,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:25:17,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:25:17,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:25:17,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:17,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:17,929 INFO L138 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 187 [2023-11-29 05:25:17,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:25:17,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:25:17,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:25:17,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:25:17,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:17,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:17,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,010 INFO L175 MemorySlicer]: Split 30 memory accesses to 6 slices as follows [2, 1, 1, 1, 1, 24]. 80 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 0, 1]. The 13 writes are split as follows [0, 1, 1, 1, 1, 9]. [2023-11-29 05:25:18,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:25:18,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:25:18,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:25:18,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:25:18,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (1/1) ... [2023-11-29 05:25:18,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:25:18,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:18,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:25:18,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:25:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:25:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:25:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:25:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:25:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 05:25:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 05:25:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:25:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:25:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:25:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:25:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 05:25:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 05:25:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 05:25:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 05:25:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 05:25:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 05:25:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-29 05:25:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-29 05:25:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:25:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:25:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:25:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:25:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 05:25:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 05:25:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 05:25:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:25:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:25:18,144 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 05:25:18,352 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:25:18,355 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:25:18,896 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:25:19,370 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:25:19,370 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:25:19,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:25:19 BoogieIcfgContainer [2023-11-29 05:25:19,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:25:19,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:25:19,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:25:19,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:25:19,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:25:17" (1/3) ... [2023-11-29 05:25:19,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd74d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:25:19, skipping insertion in model container [2023-11-29 05:25:19,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:17" (2/3) ... [2023-11-29 05:25:19,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd74d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:25:19, skipping insertion in model container [2023-11-29 05:25:19,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:25:19" (3/3) ... [2023-11-29 05:25:19,380 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.oepc.i [2023-11-29 05:25:19,390 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:25:19,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:25:19,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 05:25:19,400 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:25:19,479 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:25:19,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 112 flow [2023-11-29 05:25:19,550 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2023-11-29 05:25:19,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:25:19,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 113 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-29 05:25:19,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 112 flow [2023-11-29 05:25:19,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 44 transitions, 100 flow [2023-11-29 05:25:19,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:25:19,578 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;@7947e62b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:25:19,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-29 05:25:19,590 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:25:19,590 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-29 05:25:19,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:25:19,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:25:19,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:19,592 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 05:25:19,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:19,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1102915257, now seen corresponding path program 1 times [2023-11-29 05:25:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:19,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894005125] [2023-11-29 05:25:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:19,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:19,957 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 05:25:19,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:19,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894005125] [2023-11-29 05:25:19,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894005125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:19,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:19,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:25:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259699507] [2023-11-29 05:25:19,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:19,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:19,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:20,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2023-11-29 05:25:20,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 05:25:20,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:25:20,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2023-11-29 05:25:20,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:25:25,630 INFO L124 PetriNetUnfolderBase]: 22357/29871 cut-off events. [2023-11-29 05:25:25,631 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-11-29 05:25:25,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60085 conditions, 29871 events. 22357/29871 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 2318. Compared 194250 event pairs, 9631 based on Foata normal form. 0/21632 useless extension candidates. Maximal degree in co-relation 60073. Up to 29519 conditions per place. [2023-11-29 05:25:25,984 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 49 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2023-11-29 05:25:25,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 257 flow [2023-11-29 05:25:25,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:25:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2023-11-29 05:25:26,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2023-11-29 05:25:26,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 104 transitions. [2023-11-29 05:25:26,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 104 transitions. [2023-11-29 05:25:26,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:25:26,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 104 transitions. [2023-11-29 05:25:26,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 05:25:26,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 05:25:26,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 05:25:26,017 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 100 flow. Second operand 3 states and 104 transitions. [2023-11-29 05:25:26,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 257 flow [2023-11-29 05:25:26,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 64 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 05:25:26,028 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 143 flow [2023-11-29 05:25:26,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2023-11-29 05:25:26,036 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2023-11-29 05:25:26,036 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 143 flow [2023-11-29 05:25:26,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 05:25:26,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:25:26,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:26,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:25:26,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 05:25:26,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1626208960, now seen corresponding path program 1 times [2023-11-29 05:25:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:26,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099297311] [2023-11-29 05:25:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:26,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:26,185 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 05:25:26,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:26,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099297311] [2023-11-29 05:25:26,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099297311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:26,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:26,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:26,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968243997] [2023-11-29 05:25:26,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:26,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:26,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:26,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:26,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2023-11-29 05:25:26,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 05:25:26,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:25:26,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2023-11-29 05:25:26,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:25:29,544 INFO L124 PetriNetUnfolderBase]: 11899/16021 cut-off events. [2023-11-29 05:25:29,544 INFO L125 PetriNetUnfolderBase]: For 1258/1258 co-relation queries the response was YES. [2023-11-29 05:25:29,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38236 conditions, 16021 events. 11899/16021 cut-off events. For 1258/1258 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 97394 event pairs, 4335 based on Foata normal form. 0/13286 useless extension candidates. Maximal degree in co-relation 38225. Up to 15668 conditions per place. [2023-11-29 05:25:29,661 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 45 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-11-29 05:25:29,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 265 flow [2023-11-29 05:25:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:25:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2023-11-29 05:25:29,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2023-11-29 05:25:29,664 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 110 transitions. [2023-11-29 05:25:29,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 110 transitions. [2023-11-29 05:25:29,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:25:29,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 110 transitions. [2023-11-29 05:25:29,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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 05:25:29,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 05:25:29,669 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 05:25:29,670 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 143 flow. Second operand 4 states and 110 transitions. [2023-11-29 05:25:29,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 265 flow [2023-11-29 05:25:29,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:25:29,674 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 132 flow [2023-11-29 05:25:29,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2023-11-29 05:25:29,676 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2023-11-29 05:25:29,676 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 132 flow [2023-11-29 05:25:29,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 05:25:29,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:25:29,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:29,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:25:29,677 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-29 05:25:29,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:29,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1626208961, now seen corresponding path program 1 times [2023-11-29 05:25:29,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:29,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696195250] [2023-11-29 05:25:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:29,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:29,804 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 05:25:29,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:29,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696195250] [2023-11-29 05:25:29,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696195250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:29,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:29,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:29,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833162737] [2023-11-29 05:25:29,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:29,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:29,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:29,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:29,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2023-11-29 05:25:29,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 05:25:29,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:25:29,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2023-11-29 05:25:29,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:25:31,648 INFO L124 PetriNetUnfolderBase]: 8177/11163 cut-off events. [2023-11-29 05:25:31,648 INFO L125 PetriNetUnfolderBase]: For 1556/1556 co-relation queries the response was YES. [2023-11-29 05:25:31,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26069 conditions, 11163 events. 8177/11163 cut-off events. For 1556/1556 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 64114 event pairs, 1407 based on Foata normal form. 0/9996 useless extension candidates. Maximal degree in co-relation 26057. Up to 9081 conditions per place. [2023-11-29 05:25:31,718 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 63 selfloop transitions, 9 changer transitions 0/82 dead transitions. [2023-11-29 05:25:31,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 370 flow [2023-11-29 05:25:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:25:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2023-11-29 05:25:31,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2023-11-29 05:25:31,721 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 132 transitions. [2023-11-29 05:25:31,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 132 transitions. [2023-11-29 05:25:31,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:25:31,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 132 transitions. [2023-11-29 05:25:31,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 05:25:31,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 05:25:31,725 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 05:25:31,726 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 132 flow. Second operand 4 states and 132 transitions. [2023-11-29 05:25:31,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 370 flow [2023-11-29 05:25:31,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 82 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:25:31,730 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 184 flow [2023-11-29 05:25:31,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2023-11-29 05:25:31,731 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2023-11-29 05:25:31,732 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 184 flow [2023-11-29 05:25:31,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 05:25:31,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:25:31,732 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] [2023-11-29 05:25:31,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:25:31,733 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 05:25:31,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash 843570187, now seen corresponding path program 1 times [2023-11-29 05:25:31,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:31,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5485277] [2023-11-29 05:25:31,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:31,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:31,904 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 05:25:31,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:31,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5485277] [2023-11-29 05:25:31,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5485277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:31,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:31,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915766024] [2023-11-29 05:25:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:31,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:31,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:31,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:31,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2023-11-29 05:25:31,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 05:25:31,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:25:31,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2023-11-29 05:25:31,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:25:34,069 INFO L124 PetriNetUnfolderBase]: 5885/8055 cut-off events. [2023-11-29 05:25:34,069 INFO L125 PetriNetUnfolderBase]: For 3906/3906 co-relation queries the response was YES. [2023-11-29 05:25:34,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21406 conditions, 8055 events. 5885/8055 cut-off events. For 3906/3906 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 44167 event pairs, 343 based on Foata normal form. 0/7848 useless extension candidates. Maximal degree in co-relation 21393. Up to 3065 conditions per place. [2023-11-29 05:25:34,128 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 75 selfloop transitions, 13 changer transitions 4/102 dead transitions. [2023-11-29 05:25:34,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 102 transitions, 504 flow [2023-11-29 05:25:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:25:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2023-11-29 05:25:34,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2023-11-29 05:25:34,131 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 166 transitions. [2023-11-29 05:25:34,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 166 transitions. [2023-11-29 05:25:34,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:25:34,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 166 transitions. [2023-11-29 05:25:34,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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 05:25:34,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 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 05:25:34,136 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 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 05:25:34,136 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 184 flow. Second operand 5 states and 166 transitions. [2023-11-29 05:25:34,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 102 transitions, 504 flow [2023-11-29 05:25:34,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 486 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-29 05:25:34,145 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 208 flow [2023-11-29 05:25:34,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2023-11-29 05:25:34,146 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-11-29 05:25:34,147 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 208 flow [2023-11-29 05:25:34,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 05:25:34,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:25:34,148 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] [2023-11-29 05:25:34,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:25:34,148 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 05:25:34,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash -315025985, now seen corresponding path program 1 times [2023-11-29 05:25:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:34,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981897574] [2023-11-29 05:25:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:34,347 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 05:25:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981897574] [2023-11-29 05:25:34,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981897574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:34,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:34,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:34,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842658971] [2023-11-29 05:25:34,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:34,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:34,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:34,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:34,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:34,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2023-11-29 05:25:34,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 05:25:34,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:25:34,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2023-11-29 05:25:34,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:25:36,020 INFO L124 PetriNetUnfolderBase]: 5069/6951 cut-off events. [2023-11-29 05:25:36,020 INFO L125 PetriNetUnfolderBase]: For 7042/7042 co-relation queries the response was YES. [2023-11-29 05:25:36,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19287 conditions, 6951 events. 5069/6951 cut-off events. For 7042/7042 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 38269 event pairs, 199 based on Foata normal form. 192/7128 useless extension candidates. Maximal degree in co-relation 19273. Up to 2908 conditions per place. [2023-11-29 05:25:36,040 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2023-11-29 05:25:36,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 94 transitions, 456 flow [2023-11-29 05:25:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:25:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:25:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2023-11-29 05:25:36,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2023-11-29 05:25:36,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 172 transitions. [2023-11-29 05:25:36,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 172 transitions. [2023-11-29 05:25:36,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:25:36,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 172 transitions. [2023-11-29 05:25:36,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 05:25:36,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 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 05:25:36,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 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 05:25:36,045 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 208 flow. Second operand 6 states and 172 transitions. [2023-11-29 05:25:36,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 94 transitions, 456 flow [2023-11-29 05:25:36,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 94 transitions, 401 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-29 05:25:36,116 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-11-29 05:25:36,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2023-11-29 05:25:36,117 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2023-11-29 05:25:36,117 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-11-29 05:25:36,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 05:25:36,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-29 05:25:36,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-29 05:25:36,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-29 05:25:36,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-29 05:25:36,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-29 05:25:36,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-29 05:25:36,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-29 05:25:36,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-29 05:25:36,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-29 05:25:36,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-29 05:25:36,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-29 05:25:36,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-29 05:25:36,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-29 05:25:36,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-29 05:25:36,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-29 05:25:36,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-29 05:25:36,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-29 05:25:36,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-29 05:25:36,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-29 05:25:36,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-29 05:25:36,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:25:36,125 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 05:25:36,131 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:25:36,131 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:25:36,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:25:36 BasicIcfg [2023-11-29 05:25:36,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:25:36,138 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:25:36,138 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:25:36,138 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:25:36,138 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:25:19" (3/4) ... [2023-11-29 05:25:36,140 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:25:36,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-29 05:25:36,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-29 05:25:36,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-29 05:25:36,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-29 05:25:36,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2023-11-29 05:25:36,151 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-29 05:25:36,151 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 05:25:36,151 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:25:36,249 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:25:36,250 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:25:36,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:25:36,251 INFO L158 Benchmark]: Toolchain (without parser) took 19016.64ms. Allocated memory was 157.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 108.6MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 441.5MB. Max. memory is 16.1GB. [2023-11-29 05:25:36,252 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:25:36,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.22ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 82.8MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 05:25:36,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.94ms. Allocated memory is still 157.3MB. Free memory was 82.8MB in the beginning and 79.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:25:36,253 INFO L158 Benchmark]: Boogie Preprocessor took 114.68ms. Allocated memory was 157.3MB in the beginning and 228.6MB in the end (delta: 71.3MB). Free memory was 79.6MB in the beginning and 193.1MB in the end (delta: -113.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-29 05:25:36,254 INFO L158 Benchmark]: RCFGBuilder took 1324.30ms. Allocated memory is still 228.6MB. Free memory was 193.0MB in the beginning and 160.6MB in the end (delta: 32.5MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2023-11-29 05:25:36,255 INFO L158 Benchmark]: TraceAbstraction took 16763.10ms. Allocated memory was 228.6MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 159.5MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-11-29 05:25:36,256 INFO L158 Benchmark]: Witness Printer took 112.51ms. Allocated memory is still 2.5GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 05:25:36,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.22ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 82.8MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.94ms. Allocated memory is still 157.3MB. Free memory was 82.8MB in the beginning and 79.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.68ms. Allocated memory was 157.3MB in the beginning and 228.6MB in the end (delta: 71.3MB). Free memory was 79.6MB in the beginning and 193.1MB in the end (delta: -113.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1324.30ms. Allocated memory is still 228.6MB. Free memory was 193.0MB in the beginning and 160.6MB in the end (delta: 32.5MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16763.10ms. Allocated memory was 228.6MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 159.5MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 112.51ms. Allocated memory is still 2.5GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: 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, 87 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: 16.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 230 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 465 IncrementalHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 2 mSDtfsCounter, 465 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=208occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 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 05:25:36,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff7c9d0-aba2-4309-9bfa-7a1dd3c1ab06/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