./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.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_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 596bf38d5c1bddbb7fa933c2910678824d7396d44da5246db401a53a5b4ba843 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:50:07,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:50:08,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:50:08,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:50:08,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:50:08,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:50:08,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:50:08,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:50:08,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:50:08,136 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:50:08,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:50:08,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:50:08,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:50:08,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:50:08,140 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:50:08,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:50:08,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:50:08,142 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:50:08,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:50:08,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:50:08,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:50:08,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:50:08,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:50:08,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:50:08,145 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:50:08,146 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:50:08,146 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:50:08,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:50:08,147 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:50:08,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:50:08,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:50:08,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:50:08,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:50:08,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:08,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:50:08,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:50:08,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:50:08,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:50:08,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:50:08,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:50:08,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:50:08,153 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:50:08,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:50:08,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:50:08,154 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_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 596bf38d5c1bddbb7fa933c2910678824d7396d44da5246db401a53a5b4ba843 [2023-11-26 11:50:08,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:50:08,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:50:08,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:50:08,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:50:08,467 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:50:08,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-26 11:50:11,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:11,895 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:11,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-26 11:50:11,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/data/75cb8f20a/cb21994cdaab4fbeb6963bccc6d9a407/FLAG65e2ec92f [2023-11-26 11:50:11,936 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/data/75cb8f20a/cb21994cdaab4fbeb6963bccc6d9a407 [2023-11-26 11:50:11,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:11,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:11,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:11,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:11,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:11,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:11" (1/1) ... [2023-11-26 11:50:11,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d980159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:11, skipping insertion in model container [2023-11-26 11:50:11,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:11" (1/1) ... [2023-11-26 11:50:12,007 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:12,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:12,433 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:50:12,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:12,600 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:12,600 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:12,607 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:50:12,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12 WrapperNode [2023-11-26 11:50:12,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:12,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:12,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:50:12,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:50:12,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,697 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 172 [2023-11-26 11:50:12,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:12,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:50:12,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:50:12,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:50:12,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,733 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-26 11:50:12,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:50:12,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:50:12,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:50:12,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:50:12,773 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (1/1) ... [2023-11-26 11:50:12,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:12,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:12,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:50:12,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:50:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:50:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:50:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:50:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:50:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:50:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:50:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:50:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:50:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 11:50:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 11:50:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 11:50:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 11:50:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 11:50:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 11:50:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:50:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:50:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:50:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:50:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:50:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:50:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:50:12,880 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:50:13,035 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:50:13,038 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:50:13,527 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:50:13,796 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:50:13,797 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:50:13,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:13 BoogieIcfgContainer [2023-11-26 11:50:13,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:50:13,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:50:13,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:50:13,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:50:13,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:50:11" (1/3) ... [2023-11-26 11:50:13,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435c5b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:13, skipping insertion in model container [2023-11-26 11:50:13,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:12" (2/3) ... [2023-11-26 11:50:13,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435c5b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:13, skipping insertion in model container [2023-11-26 11:50:13,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:13" (3/3) ... [2023-11-26 11:50:13,807 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-26 11:50:13,821 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:50:13,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:50:13,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 11:50:13,833 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:50:13,901 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:50:13,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 90 flow [2023-11-26 11:50:13,987 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-26 11:50:13,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:50:13,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 93 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 11:50:13,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 90 flow [2023-11-26 11:50:14,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 81 flow [2023-11-26 11:50:14,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:50:14,031 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;@512e0c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:50:14,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-26 11:50:14,044 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:50:14,044 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-26 11:50:14,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:50:14,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:14,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:14,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 11:50:14,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash -19117006, now seen corresponding path program 1 times [2023-11-26 11:50:14,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:14,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993884916] [2023-11-26 11:50:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:14,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:14,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993884916] [2023-11-26 11:50:14,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993884916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:14,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:14,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:50:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651464546] [2023-11-26 11:50:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:14,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:14,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:14,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:14,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2023-11-26 11:50:14,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:14,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:14,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2023-11-26 11:50:14,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:15,674 INFO L124 PetriNetUnfolderBase]: 2851/4209 cut-off events. [2023-11-26 11:50:15,675 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-26 11:50:15,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8460 conditions, 4209 events. 2851/4209 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 23440 event pairs, 979 based on Foata normal form. 0/3358 useless extension candidates. Maximal degree in co-relation 8449. Up to 3881 conditions per place. [2023-11-26 11:50:15,718 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 41 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2023-11-26 11:50:15,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 211 flow [2023-11-26 11:50:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2023-11-26 11:50:15,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.717948717948718 [2023-11-26 11:50:15,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 84 transitions. [2023-11-26 11:50:15,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 84 transitions. [2023-11-26 11:50:15,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:15,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 84 transitions. [2023-11-26 11:50:15,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:15,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:15,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:15,744 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 81 flow. Second operand 3 states and 84 transitions. [2023-11-26 11:50:15,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 211 flow [2023-11-26 11:50:15,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 11:50:15,751 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 114 flow [2023-11-26 11:50:15,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-11-26 11:50:15,757 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2023-11-26 11:50:15,757 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 114 flow [2023-11-26 11:50:15,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:15,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:15,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:15,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:50:15,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 11:50:15,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1289547092, now seen corresponding path program 1 times [2023-11-26 11:50:15,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:15,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929545839] [2023-11-26 11:50:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:15,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:15,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929545839] [2023-11-26 11:50:15,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929545839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:15,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:15,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042934886] [2023-11-26 11:50:15,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:15,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:50:15,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:15,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:50:15,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:50:16,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2023-11-26 11:50:16,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:16,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:16,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2023-11-26 11:50:16,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:16,754 INFO L124 PetriNetUnfolderBase]: 2007/2985 cut-off events. [2023-11-26 11:50:16,755 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2023-11-26 11:50:16,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6960 conditions, 2985 events. 2007/2985 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 16219 event pairs, 609 based on Foata normal form. 0/2622 useless extension candidates. Maximal degree in co-relation 6949. Up to 2656 conditions per place. [2023-11-26 11:50:16,782 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 38 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2023-11-26 11:50:16,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 218 flow [2023-11-26 11:50:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:50:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:50:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2023-11-26 11:50:16,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5705128205128205 [2023-11-26 11:50:16,786 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 89 transitions. [2023-11-26 11:50:16,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 89 transitions. [2023-11-26 11:50:16,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:16,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 89 transitions. [2023-11-26 11:50:16,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:16,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:16,797 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:16,797 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 114 flow. Second operand 4 states and 89 transitions. [2023-11-26 11:50:16,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 218 flow [2023-11-26 11:50:16,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:50:16,803 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2023-11-26 11:50:16,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2023-11-26 11:50:16,811 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-11-26 11:50:16,811 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2023-11-26 11:50:16,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:16,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:16,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:16,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:50:16,812 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 11:50:16,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:16,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1289547091, now seen corresponding path program 1 times [2023-11-26 11:50:16,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:16,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44433742] [2023-11-26 11:50:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:16,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44433742] [2023-11-26 11:50:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44433742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:16,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:16,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75332933] [2023-11-26 11:50:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:50:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:50:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:50:16,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2023-11-26 11:50:16,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:16,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:16,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2023-11-26 11:50:16,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:17,458 INFO L124 PetriNetUnfolderBase]: 1463/2205 cut-off events. [2023-11-26 11:50:17,458 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2023-11-26 11:50:17,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5049 conditions, 2205 events. 1463/2205 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11625 event pairs, 235 based on Foata normal form. 0/2114 useless extension candidates. Maximal degree in co-relation 5037. Up to 1077 conditions per place. [2023-11-26 11:50:17,478 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 50 selfloop transitions, 7 changer transitions 3/68 dead transitions. [2023-11-26 11:50:17,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 302 flow [2023-11-26 11:50:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:50:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:50:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2023-11-26 11:50:17,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2023-11-26 11:50:17,484 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 107 transitions. [2023-11-26 11:50:17,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 107 transitions. [2023-11-26 11:50:17,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:17,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 107 transitions. [2023-11-26 11:50:17,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:17,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:17,489 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:17,489 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 4 states and 107 transitions. [2023-11-26 11:50:17,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 302 flow [2023-11-26 11:50:17,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 68 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:17,493 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 127 flow [2023-11-26 11:50:17,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2023-11-26 11:50:17,495 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2023-11-26 11:50:17,496 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 127 flow [2023-11-26 11:50:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:17,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:17,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:17,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:50:17,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 11:50:17,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:17,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1665980432, now seen corresponding path program 1 times [2023-11-26 11:50:17,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:17,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666577557] [2023-11-26 11:50:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:17,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:17,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:17,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666577557] [2023-11-26 11:50:17,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666577557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:17,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:17,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:50:17,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347923339] [2023-11-26 11:50:17,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:17,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:50:17,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:17,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:50:17,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:50:17,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2023-11-26 11:50:17,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:17,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:17,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2023-11-26 11:50:17,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:18,236 INFO L124 PetriNetUnfolderBase]: 1195/1817 cut-off events. [2023-11-26 11:50:18,236 INFO L125 PetriNetUnfolderBase]: For 1149/1149 co-relation queries the response was YES. [2023-11-26 11:50:18,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4664 conditions, 1817 events. 1195/1817 cut-off events. For 1149/1149 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9929 event pairs, 175 based on Foata normal form. 72/1870 useless extension candidates. Maximal degree in co-relation 4651. Up to 800 conditions per place. [2023-11-26 11:50:18,245 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2023-11-26 11:50:18,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 62 transitions, 281 flow [2023-11-26 11:50:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:50:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:50:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2023-11-26 11:50:18,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5743589743589743 [2023-11-26 11:50:18,247 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 112 transitions. [2023-11-26 11:50:18,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 112 transitions. [2023-11-26 11:50:18,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:18,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 112 transitions. [2023-11-26 11:50:18,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:18,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:18,250 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:18,250 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 127 flow. Second operand 5 states and 112 transitions. [2023-11-26 11:50:18,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 62 transitions, 281 flow [2023-11-26 11:50:18,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 257 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-26 11:50:18,254 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-11-26 11:50:18,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-11-26 11:50:18,256 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2023-11-26 11:50:18,256 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-11-26 11:50:18,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:18,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-26 11:50:18,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-26 11:50:18,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-26 11:50:18,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-26 11:50:18,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-26 11:50:18,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-26 11:50:18,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-26 11:50:18,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-26 11:50:18,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-26 11:50:18,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-26 11:50:18,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-26 11:50:18,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-26 11:50:18,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-26 11:50:18,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-26 11:50:18,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-26 11:50:18,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:50:18,263 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 11:50:18,269 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:50:18,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:50:18,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:50:18 BasicIcfg [2023-11-26 11:50:18,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:50:18,276 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:50:18,276 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:50:18,276 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:50:18,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:13" (3/4) ... [2023-11-26 11:50:18,278 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:50:18,281 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 11:50:18,281 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 11:50:18,282 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-26 11:50:18,288 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2023-11-26 11:50:18,288 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-26 11:50:18,289 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-26 11:50:18,289 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 11:50:18,382 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:50:18,382 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:50:18,382 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:50:18,383 INFO L158 Benchmark]: Toolchain (without parser) took 6442.69ms. Allocated memory was 140.5MB in the beginning and 327.2MB in the end (delta: 186.6MB). Free memory was 95.0MB in the beginning and 203.6MB in the end (delta: -108.6MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,383 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 98.6MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:50:18,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.08ms. Allocated memory is still 140.5MB. Free memory was 94.6MB in the beginning and 69.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.86ms. Allocated memory is still 140.5MB. Free memory was 69.8MB in the beginning and 110.6MB in the end (delta: -40.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,384 INFO L158 Benchmark]: Boogie Preprocessor took 72.87ms. Allocated memory is still 140.5MB. Free memory was 110.6MB in the beginning and 107.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,385 INFO L158 Benchmark]: RCFGBuilder took 1026.32ms. Allocated memory is still 140.5MB. Free memory was 107.2MB in the beginning and 98.2MB in the end (delta: 9.0MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,385 INFO L158 Benchmark]: TraceAbstraction took 4475.24ms. Allocated memory was 140.5MB in the beginning and 327.2MB in the end (delta: 186.6MB). Free memory was 97.4MB in the beginning and 208.8MB in the end (delta: -111.4MB). Peak memory consumption was 137.6MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,386 INFO L158 Benchmark]: Witness Printer took 106.62ms. Allocated memory is still 327.2MB. Free memory was 208.8MB in the beginning and 203.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:50:18,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 98.6MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 666.08ms. Allocated memory is still 140.5MB. Free memory was 94.6MB in the beginning and 69.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.86ms. Allocated memory is still 140.5MB. Free memory was 69.8MB in the beginning and 110.6MB in the end (delta: -40.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.87ms. Allocated memory is still 140.5MB. Free memory was 110.6MB in the beginning and 107.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1026.32ms. Allocated memory is still 140.5MB. Free memory was 107.2MB in the beginning and 98.2MB in the end (delta: 9.0MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4475.24ms. Allocated memory was 140.5MB in the beginning and 327.2MB in the end (delta: 186.6MB). Free memory was 97.4MB in the beginning and 208.8MB in the end (delta: -111.4MB). Peak memory consumption was 137.6MB. Max. memory is 16.1GB. * Witness Printer took 106.62ms. Allocated memory is still 327.2MB. Free memory was 208.8MB in the beginning and 203.6MB 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: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: 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 7 procedures, 70 locations, 15 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:50:18,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d86685aa-e26d-4270-a182-458d7c391a4a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE