./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.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_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/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_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/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_b00596ae-cd82-48d9-8459-d42b963ee0dd/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 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:13:56,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:13:56,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 16:13:57,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:13:57,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:13:57,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:13:57,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:13:57,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:13:57,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:13:57,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:13:57,027 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:13:57,027 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:13:57,028 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:13:57,028 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:13:57,029 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:13:57,029 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:13:57,030 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:13:57,030 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:13:57,031 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:13:57,031 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:13:57,032 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:13:57,033 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:13:57,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:13:57,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:13:57,034 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:13:57,035 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:13:57,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:13:57,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:13:57,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:13:57,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:13:57,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:13:57,037 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:13:57,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:13:57,037 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:13:57,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:13:57,038 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:13:57,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:13:57,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:13:57,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:13:57,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:13:57,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:13:57,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:13:57,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:13:57,040 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:13:57,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:13:57,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:13:57,040 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:13:57,040 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:13:57,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:13:57,041 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_b00596ae-cd82-48d9-8459-d42b963ee0dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 [2023-12-02 16:13:57,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:13:57,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:13:57,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:13:57,277 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:13:57,278 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:13:57,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i [2023-12-02 16:13:59,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:14:00,216 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:14:00,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i [2023-12-02 16:14:00,233 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/data/e574c72ba/34835341ee954346ad7aa68e39065af1/FLAG5edc1537e [2023-12-02 16:14:00,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/data/e574c72ba/34835341ee954346ad7aa68e39065af1 [2023-12-02 16:14:00,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:14:00,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:14:00,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:14:00,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:14:00,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:14:00,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3373b648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00, skipping insertion in model container [2023-12-02 16:14:00,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,307 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:14:00,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:14:00,684 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:14:00,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:14:00,780 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:14:00,780 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:14:00,788 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:14:00,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00 WrapperNode [2023-12-02 16:14:00,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:14:00,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:14:00,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:14:00,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:14:00,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,840 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2023-12-02 16:14:00,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:14:00,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:14:00,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:14:00,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:14:00,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:14:00,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:14:00,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:14:00,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:14:00,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (1/1) ... [2023-12-02 16:14:00,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:14:00,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:00,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:14:00,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:14:00,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:14:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:14:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 16:14:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:14:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:14:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:14:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 16:14:00,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 16:14:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 16:14:00,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 16:14:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 16:14:00,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 16:14:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:14:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 16:14:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:14:00,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:14:00,951 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 16:14:01,110 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:14:01,112 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:14:01,545 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:14:01,912 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:14:01,912 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 16:14:01,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:01 BoogieIcfgContainer [2023-12-02 16:14:01,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:14:01,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:14:01,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:14:01,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:14:01,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:14:00" (1/3) ... [2023-12-02 16:14:01,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56165b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:14:01, skipping insertion in model container [2023-12-02 16:14:01,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:00" (2/3) ... [2023-12-02 16:14:01,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56165b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:14:01, skipping insertion in model container [2023-12-02 16:14:01,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:01" (3/3) ... [2023-12-02 16:14:01,921 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_power.oepc.i [2023-12-02 16:14:01,931 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 16:14:01,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:14:01,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-02 16:14:01,942 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 16:14:02,020 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 16:14:02,048 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 39 transitions, 90 flow [2023-12-02 16:14:02,285 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5184 states, 5158 states have (on average 3.5029081039162464) internal successors, (18068), 5183 states have internal predecessors, (18068), 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 16:14:02,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:14:02,311 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;@5bf633bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:14:02,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-12-02 16:14:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 5184 states, 5158 states have (on average 3.5029081039162464) internal successors, (18068), 5183 states have internal predecessors, (18068), 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 16:14:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 16:14:02,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:02,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:02,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:14:02,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1796901292, now seen corresponding path program 1 times [2023-12-02 16:14:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:02,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131173269] [2023-12-02 16:14:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:02,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:02,668 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 16:14:02,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:02,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131173269] [2023-12-02 16:14:02,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131173269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:02,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:02,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:14:02,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669469100] [2023-12-02 16:14:02,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:02,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:02,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:02,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:02,722 INFO L87 Difference]: Start difference. First operand has 5184 states, 5158 states have (on average 3.5029081039162464) internal successors, (18068), 5183 states have internal predecessors, (18068), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:14:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:02,905 INFO L93 Difference]: Finished difference Result 3616 states and 12072 transitions. [2023-12-02 16:14:02,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:02,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-02 16:14:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:02,955 INFO L225 Difference]: With dead ends: 3616 [2023-12-02 16:14:02,955 INFO L226 Difference]: Without dead ends: 3616 [2023-12-02 16:14:02,956 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 16:14:02,959 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:02,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 16 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:03,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2023-12-02 16:14:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3616. [2023-12-02 16:14:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3598 states have (on average 3.3551973318510284) internal successors, (12072), 3615 states have internal predecessors, (12072), 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 16:14:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 12072 transitions. [2023-12-02 16:14:03,175 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 12072 transitions. Word has length 7 [2023-12-02 16:14:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:03,175 INFO L495 AbstractCegarLoop]: Abstraction has 3616 states and 12072 transitions. [2023-12-02 16:14:03,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:14:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 12072 transitions. [2023-12-02 16:14:03,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 16:14:03,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:03,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:03,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:14:03,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:14:03,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:03,185 INFO L85 PathProgramCache]: Analyzing trace with hash 961296489, now seen corresponding path program 1 times [2023-12-02 16:14:03,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:03,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843233025] [2023-12-02 16:14:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:03,332 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 16:14:03,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:03,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843233025] [2023-12-02 16:14:03,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843233025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:03,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:03,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:03,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108196524] [2023-12-02 16:14:03,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:03,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:14:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:03,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:14:03,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:03,336 INFO L87 Difference]: Start difference. First operand 3616 states and 12072 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 16:14:03,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:03,513 INFO L93 Difference]: Finished difference Result 2978 states and 9979 transitions. [2023-12-02 16:14:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:14:03,514 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 16:14:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:03,542 INFO L225 Difference]: With dead ends: 2978 [2023-12-02 16:14:03,542 INFO L226 Difference]: Without dead ends: 2978 [2023-12-02 16:14:03,543 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 16:14:03,544 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 39 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:03,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 32 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:03,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2023-12-02 16:14:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2978. [2023-12-02 16:14:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2972 states have (on average 3.357671601615074) internal successors, (9979), 2977 states have internal predecessors, (9979), 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 16:14:03,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 9979 transitions. [2023-12-02 16:14:03,665 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 9979 transitions. Word has length 15 [2023-12-02 16:14:03,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:03,666 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 9979 transitions. [2023-12-02 16:14:03,666 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 16:14:03,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 9979 transitions. [2023-12-02 16:14:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 16:14:03,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:03,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:03,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:14:03,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:14:03,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash 961296490, now seen corresponding path program 1 times [2023-12-02 16:14:03,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:03,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924875387] [2023-12-02 16:14:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:03,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:03,779 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 16:14:03,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:03,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924875387] [2023-12-02 16:14:03,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924875387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:03,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:03,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:03,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29781775] [2023-12-02 16:14:03,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:03,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:14:03,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:03,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:14:03,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:14:03,783 INFO L87 Difference]: Start difference. First operand 2978 states and 9979 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 16:14:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:03,962 INFO L93 Difference]: Finished difference Result 2508 states and 8408 transitions. [2023-12-02 16:14:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:14:03,963 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 16:14:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:03,989 INFO L225 Difference]: With dead ends: 2508 [2023-12-02 16:14:03,989 INFO L226 Difference]: Without dead ends: 2508 [2023-12-02 16:14:03,989 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 16:14:03,991 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 47 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:03,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 24 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2023-12-02 16:14:04,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2508. [2023-12-02 16:14:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 2505 states have (on average 3.3564870259481037) internal successors, (8408), 2507 states have internal predecessors, (8408), 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 16:14:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 8408 transitions. [2023-12-02 16:14:04,112 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 8408 transitions. Word has length 15 [2023-12-02 16:14:04,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:04,113 INFO L495 AbstractCegarLoop]: Abstraction has 2508 states and 8408 transitions. [2023-12-02 16:14:04,113 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 16:14:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 8408 transitions. [2023-12-02 16:14:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:14:04,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:04,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:04,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:14:04,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:14:04,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:04,124 INFO L85 PathProgramCache]: Analyzing trace with hash -627967511, now seen corresponding path program 1 times [2023-12-02 16:14:04,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:04,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332158073] [2023-12-02 16:14:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:04,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:04,261 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 16:14:04,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:04,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332158073] [2023-12-02 16:14:04,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332158073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:04,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:04,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:14:04,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639307651] [2023-12-02 16:14:04,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:04,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:14:04,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:04,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:14:04,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:14:04,264 INFO L87 Difference]: Start difference. First operand 2508 states and 8408 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 16:14:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:04,403 INFO L93 Difference]: Finished difference Result 2424 states and 8168 transitions. [2023-12-02 16:14:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:14:04,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-12-02 16:14:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:04,404 INFO L225 Difference]: With dead ends: 2424 [2023-12-02 16:14:04,404 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:14:04,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:14:04,406 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 54 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:04,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 24 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:04,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:14:04,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:14:04,407 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 16:14:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:14:04,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2023-12-02 16:14:04,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:04,408 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:14:04,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 16:14:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:14:04,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:14:04,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-12-02 16:14:04,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-12-02 16:14:04,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-12-02 16:14:04,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-12-02 16:14:04,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-12-02 16:14:04,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-12-02 16:14:04,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-12-02 16:14:04,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-12-02 16:14:04,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-12-02 16:14:04,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-12-02 16:14:04,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-12-02 16:14:04,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-12-02 16:14:04,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-12-02 16:14:04,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-12-02 16:14:04,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-12-02 16:14:04,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:14:04,418 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 16:14:04,423 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 16:14:04,423 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:14:04,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:14:04 BasicIcfg [2023-12-02 16:14:04,427 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:14:04,428 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:14:04,428 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:14:04,428 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:14:04,428 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:01" (3/4) ... [2023-12-02 16:14:04,430 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:14:04,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-12-02 16:14:04,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-12-02 16:14:04,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-12-02 16:14:04,438 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2023-12-02 16:14:04,439 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 16:14:04,439 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 16:14:04,439 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:14:04,529 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:14:04,530 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:14:04,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:14:04,531 INFO L158 Benchmark]: Toolchain (without parser) took 4279.71ms. Allocated memory was 144.7MB in the beginning and 255.9MB in the end (delta: 111.1MB). Free memory was 99.3MB in the beginning and 196.8MB in the end (delta: -97.5MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,531 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:14:04,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.30ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 74.2MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.23ms. Allocated memory is still 144.7MB. Free memory was 73.6MB in the beginning and 71.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,533 INFO L158 Benchmark]: Boogie Preprocessor took 41.36ms. Allocated memory is still 144.7MB. Free memory was 71.4MB in the beginning and 68.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,533 INFO L158 Benchmark]: RCFGBuilder took 1029.71ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 68.9MB in the beginning and 96.5MB in the end (delta: -27.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,534 INFO L158 Benchmark]: TraceAbstraction took 2511.62ms. Allocated memory was 199.2MB in the beginning and 255.9MB in the end (delta: 56.6MB). Free memory was 95.5MB in the beginning and 87.5MB in the end (delta: 8.0MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,534 INFO L158 Benchmark]: Witness Printer took 102.47ms. Allocated memory is still 255.9MB. Free memory was 87.5MB in the beginning and 196.8MB in the end (delta: -109.3MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-12-02 16:14:04,536 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 113.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.30ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 74.2MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.23ms. Allocated memory is still 144.7MB. Free memory was 73.6MB in the beginning and 71.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.36ms. Allocated memory is still 144.7MB. Free memory was 71.4MB in the beginning and 68.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1029.71ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 68.9MB in the beginning and 96.5MB in the end (delta: -27.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2511.62ms. Allocated memory was 199.2MB in the beginning and 255.9MB in the end (delta: 56.6MB). Free memory was 95.5MB in the beginning and 87.5MB in the end (delta: 8.0MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Witness Printer took 102.47ms. Allocated memory is still 255.9MB. Free memory was 87.5MB in the beginning and 196.8MB in the end (delta: -109.3MB). Peak memory consumption was 2.9MB. 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: 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. OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 264 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 40 mSDtfsCounter, 264 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=5184occurred in iteration=0, 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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! [2023-12-02 16:14:04,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b00596ae-cd82-48d9-8459-d42b963ee0dd/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