./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_tso.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_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:25:58,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:25:58,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 15:25:58,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:25:58,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:25:58,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:25:58,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:25:58,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:25:58,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:25:58,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:25:58,871 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:25:58,872 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:25:58,872 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:25:58,873 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:25:58,873 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:25:58,874 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:25:58,874 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:25:58,875 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:25:58,875 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:25:58,876 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:25:58,876 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:25:58,877 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:25:58,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:25:58,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:25:58,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:25:58,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:25:58,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:25:58,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:25:58,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:25:58,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:25:58,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:25:58,881 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 15:25:58,881 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:25:58,881 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:25:58,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:25:58,882 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:25:58,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:25:58,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:25:58,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:25:58,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:58,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:25:58,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:25:58,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:25:58,884 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:25:58,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:25:58,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:25:58,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:25:58,884 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:25:58,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:25:58,885 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2023-12-02 15:25:59,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:25:59,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:25:59,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:25:59,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:25:59,153 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:25:59,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/safe033_tso.i [2023-12-02 15:26:01,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:26:02,197 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:26:02,198 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/sv-benchmarks/c/pthread-wmm/safe033_tso.i [2023-12-02 15:26:02,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/data/55ea2fda9/6986128381e6465499e92e4ec8986f6c/FLAG490f931c5 [2023-12-02 15:26:02,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/data/55ea2fda9/6986128381e6465499e92e4ec8986f6c [2023-12-02 15:26:02,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:26:02,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:26:02,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:26:02,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:26:02,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:26:02,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3985c1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02, skipping insertion in model container [2023-12-02 15:26:02,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:26:02,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:26:02,565 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:26:02,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:26:02,629 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:26:02,630 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:26:02,637 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:26:02,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02 WrapperNode [2023-12-02 15:26:02,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:26:02,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:26:02,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:26:02,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:26:02,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,672 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-12-02 15:26:02,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:26:02,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:26:02,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:26:02,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:26:02,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:26:02,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:26:02,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:26:02,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:26:02,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (1/1) ... [2023-12-02 15:26:02,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:26:02,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:26:02,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:26:02,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:26:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:26:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 15:26:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:26:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:26:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:26:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 15:26:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 15:26:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 15:26:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 15:26:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:26:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 15:26:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:26:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:26:02,759 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:26:02,868 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:26:02,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:26:03,005 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:26:03,121 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:26:03,121 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:26:03,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:26:03 BoogieIcfgContainer [2023-12-02 15:26:03,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:26:03,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:26:03,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:26:03,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:26:03,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:26:02" (1/3) ... [2023-12-02 15:26:03,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35326ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:26:03, skipping insertion in model container [2023-12-02 15:26:03,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:02" (2/3) ... [2023-12-02 15:26:03,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35326ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:26:03, skipping insertion in model container [2023-12-02 15:26:03,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:26:03" (3/3) ... [2023-12-02 15:26:03,130 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2023-12-02 15:26:03,138 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 15:26:03,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:26:03,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 15:26:03,146 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:26:03,179 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:26:03,204 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 66 flow [2023-12-02 15:26:03,286 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 624 states, 616 states have (on average 2.6412337662337664) internal successors, (1627), 623 states have internal predecessors, (1627), 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) [2023-12-02 15:26:03,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:26:03,306 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=FINITE_AUTOMATA, 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;@62a2f5d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:26:03,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-12-02 15:26:03,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 624 states, 616 states have (on average 2.6412337662337664) internal successors, (1627), 623 states have internal predecessors, (1627), 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) [2023-12-02 15:26:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:26:03,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:26:03,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:26:03,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-12-02 15:26:03,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:26:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1545693573, now seen corresponding path program 1 times [2023-12-02 15:26:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:26:03,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334137278] [2023-12-02 15:26:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:26:03,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:26:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:26:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:26:03,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:26:03,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334137278] [2023-12-02 15:26:03,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334137278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:26:03,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:26:03,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:26:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066544118] [2023-12-02 15:26:03,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:26:03,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:26:03,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:26:03,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:26:03,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:26:03,628 INFO L87 Difference]: Start difference. First operand has 624 states, 616 states have (on average 2.6412337662337664) internal successors, (1627), 623 states have internal predecessors, (1627), 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) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-12-02 15:26:03,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:26:03,708 INFO L93 Difference]: Finished difference Result 438 states and 1099 transitions. [2023-12-02 15:26:03,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:26:03,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2023-12-02 15:26:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:26:03,725 INFO L225 Difference]: With dead ends: 438 [2023-12-02 15:26:03,726 INFO L226 Difference]: Without dead ends: 438 [2023-12-02 15:26:03,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:26:03,731 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:26:03,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 22 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:26:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-02 15:26:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-12-02 15:26:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 434 states have (on average 2.532258064516129) internal successors, (1099), 437 states have internal predecessors, (1099), 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) [2023-12-02 15:26:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1099 transitions. [2023-12-02 15:26:03,807 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1099 transitions. Word has length 8 [2023-12-02 15:26:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:26:03,807 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 1099 transitions. [2023-12-02 15:26:03,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-12-02 15:26:03,808 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1099 transitions. [2023-12-02 15:26:03,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 15:26:03,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:26:03,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:26:03,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:26:03,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-12-02 15:26:03,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:26:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash -653097696, now seen corresponding path program 1 times [2023-12-02 15:26:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:26:03,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375920929] [2023-12-02 15:26:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:26:03,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:26:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:26:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:26:03,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:26:03,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375920929] [2023-12-02 15:26:03,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375920929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:26:03,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:26:03,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:26:03,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081164978] [2023-12-02 15:26:03,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:26:03,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:26:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:26:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:26:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:26:03,945 INFO L87 Difference]: Start difference. First operand 438 states and 1099 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-12-02 15:26:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:26:03,992 INFO L93 Difference]: Finished difference Result 410 states and 1033 transitions. [2023-12-02 15:26:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:26:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 15 [2023-12-02 15:26:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:26:03,996 INFO L225 Difference]: With dead ends: 410 [2023-12-02 15:26:03,997 INFO L226 Difference]: Without dead ends: 410 [2023-12-02 15:26:03,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:26:03,999 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:26:03,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:26:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-02 15:26:04,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2023-12-02 15:26:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 408 states have (on average 2.531862745098039) internal successors, (1033), 409 states have internal predecessors, (1033), 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) [2023-12-02 15:26:04,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 1033 transitions. [2023-12-02 15:26:04,022 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 1033 transitions. Word has length 15 [2023-12-02 15:26:04,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:26:04,022 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 1033 transitions. [2023-12-02 15:26:04,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-12-02 15:26:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1033 transitions. [2023-12-02 15:26:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 15:26:04,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:26:04,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:26:04,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:26:04,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-12-02 15:26:04,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:26:04,027 INFO L85 PathProgramCache]: Analyzing trace with hash -653097697, now seen corresponding path program 1 times [2023-12-02 15:26:04,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:26:04,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221532460] [2023-12-02 15:26:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:26:04,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:26:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:26:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:26:04,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:26:04,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221532460] [2023-12-02 15:26:04,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221532460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:26:04,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:26:04,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:26:04,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768962575] [2023-12-02 15:26:04,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:26:04,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:26:04,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:26:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:26:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:26:04,111 INFO L87 Difference]: Start difference. First operand 410 states and 1033 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-12-02 15:26:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:26:04,153 INFO L93 Difference]: Finished difference Result 382 states and 967 transitions. [2023-12-02 15:26:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:26:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 15 [2023-12-02 15:26:04,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:26:04,154 INFO L225 Difference]: With dead ends: 382 [2023-12-02 15:26:04,155 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 15:26:04,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:26:04,156 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:26:04,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 44 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:26:04,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 15:26:04,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 15:26:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-02 15:26:04,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 15:26:04,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2023-12-02 15:26:04,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:26:04,159 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 15:26:04,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-12-02 15:26:04,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 15:26:04,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 15:26:04,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-12-02 15:26:04,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-12-02 15:26:04,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-12-02 15:26:04,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-12-02 15:26:04,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-12-02 15:26:04,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-12-02 15:26:04,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-12-02 15:26:04,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-12-02 15:26:04,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-12-02 15:26:04,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-12-02 15:26:04,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:26:04,168 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 15:26:04,173 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 15:26:04,173 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:26:04,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:26:04 BasicIcfg [2023-12-02 15:26:04,177 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:26:04,177 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:26:04,177 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:26:04,177 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:26:04,178 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:26:03" (3/4) ... [2023-12-02 15:26:04,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 15:26:04,182 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-12-02 15:26:04,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-12-02 15:26:04,187 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-12-02 15:26:04,187 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-02 15:26:04,187 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 15:26:04,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 15:26:04,265 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:26:04,265 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 15:26:04,266 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:26:04,266 INFO L158 Benchmark]: Toolchain (without parser) took 2037.16ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 103.2MB in the beginning and 89.4MB in the end (delta: 13.7MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2023-12-02 15:26:04,267 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 114.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:26:04,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.55ms. Allocated memory is still 144.7MB. Free memory was 102.7MB in the beginning and 82.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 15:26:04,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.54ms. Allocated memory is still 144.7MB. Free memory was 82.6MB in the beginning and 81.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:26:04,268 INFO L158 Benchmark]: Boogie Preprocessor took 22.05ms. Allocated memory is still 144.7MB. Free memory was 80.5MB in the beginning and 79.6MB in the end (delta: 958.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:26:04,268 INFO L158 Benchmark]: RCFGBuilder took 426.24ms. Allocated memory is still 144.7MB. Free memory was 79.4MB in the beginning and 57.5MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 15:26:04,269 INFO L158 Benchmark]: TraceAbstraction took 1052.40ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 56.6MB in the beginning and 93.6MB in the end (delta: -37.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-12-02 15:26:04,269 INFO L158 Benchmark]: Witness Printer took 88.42ms. Allocated memory is still 186.6MB. Free memory was 93.6MB in the beginning and 89.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:26:04,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 114.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.55ms. Allocated memory is still 144.7MB. Free memory was 102.7MB in the beginning and 82.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.54ms. Allocated memory is still 144.7MB. Free memory was 82.6MB in the beginning and 81.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.05ms. Allocated memory is still 144.7MB. Free memory was 80.5MB in the beginning and 79.6MB in the end (delta: 958.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 426.24ms. Allocated memory is still 144.7MB. Free memory was 79.4MB in the beginning and 57.5MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1052.40ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 56.6MB in the beginning and 93.6MB in the end (delta: -37.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 88.42ms. Allocated memory is still 186.6MB. Free memory was 93.6MB in the beginning and 89.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 730]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 730]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: 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 5 procedures, 51 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 44 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=624occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-02 15:26:04,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d83d9c0-c0f5-4630-8440-0623b0869c2a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE