./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX --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 a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:45:22,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:45:22,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:45:22,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:45:22,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:45:22,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:45:22,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:45:22,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:45:22,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:45:22,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:45:22,679 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:45:22,680 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:45:22,681 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:45:22,682 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:45:22,683 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:45:22,683 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:45:22,684 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:45:22,684 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:45:22,685 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:45:22,685 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:45:22,687 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:45:22,687 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:45:22,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:45:22,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:45:22,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:45:22,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:45:22,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:45:22,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:45:22,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:45:22,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:45:22,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:45:22,693 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:45:22,693 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:45:22,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:45:22,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:45:22,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:45:22,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:45:22,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:45:22,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:22,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:45:22,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:45:22,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:45:22,696 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:45:22,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:45:22,697 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:45:22,697 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:45:22,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:45:22,697 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_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 [2023-11-12 00:45:22,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:45:23,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:45:23,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:45:23,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:45:23,014 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:45:23,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2023-11-12 00:45:26,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:45:26,406 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:45:26,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2023-11-12 00:45:26,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/data/5518b1ac6/d2dc115b72154c3daffba4f521f2d48c/FLAG1bed7f48e [2023-11-12 00:45:26,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/data/5518b1ac6/d2dc115b72154c3daffba4f521f2d48c [2023-11-12 00:45:26,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:45:26,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:45:26,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:26,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:45:26,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:45:26,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:26" (1/1) ... [2023-11-12 00:45:26,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376fa041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:26, skipping insertion in model container [2023-11-12 00:45:26,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:26" (1/1) ... [2023-11-12 00:45:26,526 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:45:27,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:45:27,055 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:45:27,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:45:27,275 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:45:27,275 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:45:27,283 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:45:27,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27 WrapperNode [2023-11-12 00:45:27,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:27,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:45:27,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:45:27,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:45:27,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,351 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2023-11-12 00:45:27,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:45:27,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:45:27,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:45:27,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:45:27,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:45:27,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:45:27,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:45:27,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:45:27,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (1/1) ... [2023-11-12 00:45:27,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:27,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:45:27,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:45:27,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:45:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:45:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:45:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:45:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:45:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:45:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:45:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:45:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:45:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:45:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:45:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:45:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:45:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:45:27,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:45:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:45:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:45:27,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:45:27,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:45:27,510 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:45:27,682 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:45:27,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:45:28,276 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:45:28,695 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:45:28,696 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:45:28,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:28 BoogieIcfgContainer [2023-11-12 00:45:28,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:45:28,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:45:28,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:45:28,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:45:28,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:45:26" (1/3) ... [2023-11-12 00:45:28,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bef33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:45:28, skipping insertion in model container [2023-11-12 00:45:28,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:27" (2/3) ... [2023-11-12 00:45:28,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bef33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:45:28, skipping insertion in model container [2023-11-12 00:45:28,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:28" (3/3) ... [2023-11-12 00:45:28,712 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2023-11-12 00:45:28,721 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:45:28,732 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:45:28,733 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:45:28,733 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:45:28,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:45:28,884 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:45:28,913 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 158 transitions, 332 flow [2023-11-12 00:45:28,916 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 158 transitions, 332 flow [2023-11-12 00:45:28,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 158 transitions, 332 flow [2023-11-12 00:45:28,987 INFO L124 PetriNetUnfolderBase]: 3/154 cut-off events. [2023-11-12 00:45:28,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:45:28,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 3/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-11-12 00:45:28,999 INFO L119 LiptonReduction]: Number of co-enabled transitions 3782 [2023-11-12 00:45:43,763 INFO L134 LiptonReduction]: Checked pairs total: 10413 [2023-11-12 00:45:43,764 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-11-12 00:45:43,772 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 35 transitions, 86 flow [2023-11-12 00:45:44,115 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4750 states, 4670 states have (on average 4.2796573875803) internal successors, (19986), 4749 states have internal predecessors, (19986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:44,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:45:44,150 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;@5f198b38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:45:44,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 00:45:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 4750 states, 4670 states have (on average 4.2796573875803) internal successors, (19986), 4749 states have internal predecessors, (19986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:45:44,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:44,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:45:44,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:45:44,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:44,188 INFO L85 PathProgramCache]: Analyzing trace with hash 28058601, now seen corresponding path program 1 times [2023-11-12 00:45:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:44,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300828234] [2023-11-12 00:45:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:45:44,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:44,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300828234] [2023-11-12 00:45:44,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300828234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:44,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:44,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:45:44,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138740695] [2023-11-12 00:45:44,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:44,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:45:44,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:44,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:45:44,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:45:44,786 INFO L87 Difference]: Start difference. First operand has 4750 states, 4670 states have (on average 4.2796573875803) internal successors, (19986), 4749 states have internal predecessors, (19986), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:45,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:45,016 INFO L93 Difference]: Finished difference Result 2770 states and 9685 transitions. [2023-11-12 00:45:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:45:45,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-12 00:45:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:45,069 INFO L225 Difference]: With dead ends: 2770 [2023-11-12 00:45:45,069 INFO L226 Difference]: Without dead ends: 2770 [2023-11-12 00:45:45,070 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 [2023-11-12 00:45:45,074 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:45,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:45:45,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2023-11-12 00:45:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2770. [2023-11-12 00:45:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2706 states have (on average 3.5790835181079084) internal successors, (9685), 2769 states have internal predecessors, (9685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 9685 transitions. [2023-11-12 00:45:45,357 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 9685 transitions. Word has length 4 [2023-11-12 00:45:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:45,358 INFO L495 AbstractCegarLoop]: Abstraction has 2770 states and 9685 transitions. [2023-11-12 00:45:45,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 9685 transitions. [2023-11-12 00:45:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:45:45,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:45,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:45,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:45:45,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:45:45,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:45,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1420357719, now seen corresponding path program 1 times [2023-11-12 00:45:45,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:45,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898352686] [2023-11-12 00:45:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:45,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:45:45,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:45,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898352686] [2023-11-12 00:45:45,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898352686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:45,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:45,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:45:45,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944848996] [2023-11-12 00:45:45,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:45,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:45:45,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:45:45,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:45:45,572 INFO L87 Difference]: Start difference. First operand 2770 states and 9685 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-12 00:45:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:45,787 INFO L93 Difference]: Finished difference Result 1622 states and 5671 transitions. [2023-11-12 00:45:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:45:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2023-11-12 00:45:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:45,807 INFO L225 Difference]: With dead ends: 1622 [2023-11-12 00:45:45,808 INFO L226 Difference]: Without dead ends: 1622 [2023-11-12 00:45:45,808 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 [2023-11-12 00:45:45,809 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:45,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:45:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-11-12 00:45:45,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1622. [2023-11-12 00:45:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1608 states have (on average 3.5267412935323383) internal successors, (5671), 1621 states have internal predecessors, (5671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 5671 transitions. [2023-11-12 00:45:45,904 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 5671 transitions. Word has length 8 [2023-11-12 00:45:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:45,904 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 5671 transitions. [2023-11-12 00:45:45,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-12 00:45:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 5671 transitions. [2023-11-12 00:45:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:45:45,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:45,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:45,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:45:45,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:45:45,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1081416478, now seen corresponding path program 1 times [2023-11-12 00:45:45,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:45,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985119162] [2023-11-12 00:45:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:45,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:45:46,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:46,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985119162] [2023-11-12 00:45:46,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985119162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:46,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:46,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:45:46,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708054141] [2023-11-12 00:45:46,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:46,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:45:46,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:45:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:45:46,010 INFO L87 Difference]: Start difference. First operand 1622 states and 5671 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:46,162 INFO L93 Difference]: Finished difference Result 1072 states and 3644 transitions. [2023-11-12 00:45:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:45:46,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-12 00:45:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:46,174 INFO L225 Difference]: With dead ends: 1072 [2023-11-12 00:45:46,174 INFO L226 Difference]: Without dead ends: 1072 [2023-11-12 00:45:46,174 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 [2023-11-12 00:45:46,176 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 27 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:46,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:45:46,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-12 00:45:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2023-11-12 00:45:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1062 states have (on average 3.431261770244821) internal successors, (3644), 1071 states have internal predecessors, (3644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 3644 transitions. [2023-11-12 00:45:46,221 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 3644 transitions. Word has length 9 [2023-11-12 00:45:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:46,221 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 3644 transitions. [2023-11-12 00:45:46,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:46,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 3644 transitions. [2023-11-12 00:45:46,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:45:46,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:46,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:46,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:45:46,227 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:45:46,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:46,227 INFO L85 PathProgramCache]: Analyzing trace with hash -540534923, now seen corresponding path program 1 times [2023-11-12 00:45:46,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:46,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102380905] [2023-11-12 00:45:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:46,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:45:46,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:46,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102380905] [2023-11-12 00:45:46,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102380905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:46,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:46,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:45:46,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188352690] [2023-11-12 00:45:46,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:46,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:45:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:46,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:45:46,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:45:46,414 INFO L87 Difference]: Start difference. First operand 1072 states and 3644 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:46,620 INFO L93 Difference]: Finished difference Result 910 states and 3203 transitions. [2023-11-12 00:45:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:45:46,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2023-11-12 00:45:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:46,630 INFO L225 Difference]: With dead ends: 910 [2023-11-12 00:45:46,631 INFO L226 Difference]: Without dead ends: 910 [2023-11-12 00:45:46,631 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 [2023-11-12 00:45:46,635 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 45 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:46,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:45:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2023-11-12 00:45:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2023-11-12 00:45:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 906 states have (on average 3.535320088300221) internal successors, (3203), 909 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 3203 transitions. [2023-11-12 00:45:46,677 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 3203 transitions. Word has length 14 [2023-11-12 00:45:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:46,678 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 3203 transitions. [2023-11-12 00:45:46,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 3203 transitions. [2023-11-12 00:45:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:45:46,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:46,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:46,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:45:46,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:45:46,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:46,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1791560777, now seen corresponding path program 1 times [2023-11-12 00:45:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:46,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275928442] [2023-11-12 00:45:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:46,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:45:46,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:46,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275928442] [2023-11-12 00:45:46,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275928442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:46,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:46,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:45:46,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585609090] [2023-11-12 00:45:46,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:46,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:45:46,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:46,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:45:46,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:45:46,916 INFO L87 Difference]: Start difference. First operand 910 states and 3203 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:47,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:47,110 INFO L93 Difference]: Finished difference Result 894 states and 3175 transitions. [2023-11-12 00:45:47,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:45:47,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2023-11-12 00:45:47,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:47,111 INFO L225 Difference]: With dead ends: 894 [2023-11-12 00:45:47,112 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:45:47,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:45:47,112 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 57 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:47,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 4 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:45:47,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:45:47,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:45:47,114 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) [2023-11-12 00:45:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:45:47,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2023-11-12 00:45:47,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:47,114 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:45:47,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:45:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:45:47,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:45:47,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 00:45:47,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 00:45:47,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 00:45:47,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 00:45:47,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 00:45:47,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 00:45:47,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 00:45:47,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 00:45:47,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 00:45:47,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 00:45:47,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 00:45:47,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 00:45:47,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 00:45:47,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 00:45:47,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 00:45:47,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 00:45:47,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 00:45:47,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 00:45:47,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 00:45:47,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 00:45:47,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:45:47,126 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:45:47,131 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:45:47,131 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:45:47,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:45:47 BasicIcfg [2023-11-12 00:45:47,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:45:47,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:45:47,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:45:47,136 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:45:47,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:28" (3/4) ... [2023-11-12 00:45:47,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:45:47,141 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:45:47,141 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:45:47,141 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 00:45:47,141 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 00:45:47,149 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-11-12 00:45:47,150 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 00:45:47,150 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:45:47,151 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:45:47,248 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:45:47,249 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:45:47,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:45:47,249 INFO L158 Benchmark]: Toolchain (without parser) took 20802.11ms. Allocated memory was 123.7MB in the beginning and 232.8MB in the end (delta: 109.1MB). Free memory was 75.7MB in the beginning and 76.9MB in the end (delta: -1.2MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,250 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:45:47,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 835.95ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 75.7MB in the beginning and 119.9MB in the end (delta: -44.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.08ms. Allocated memory is still 153.1MB. Free memory was 119.9MB in the beginning and 116.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,251 INFO L158 Benchmark]: Boogie Preprocessor took 78.57ms. Allocated memory is still 153.1MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,251 INFO L158 Benchmark]: RCFGBuilder took 1269.56ms. Allocated memory is still 153.1MB. Free memory was 114.6MB in the beginning and 97.5MB in the end (delta: 17.1MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,252 INFO L158 Benchmark]: TraceAbstraction took 18431.06ms. Allocated memory was 153.1MB in the beginning and 232.8MB in the end (delta: 79.7MB). Free memory was 97.5MB in the beginning and 83.2MB in the end (delta: 14.3MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,252 INFO L158 Benchmark]: Witness Printer took 113.71ms. Allocated memory is still 232.8MB. Free memory was 83.2MB in the beginning and 76.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:45:47,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 835.95ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 75.7MB in the beginning and 119.9MB in the end (delta: -44.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.08ms. Allocated memory is still 153.1MB. Free memory was 119.9MB in the beginning and 116.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.57ms. Allocated memory is still 153.1MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1269.56ms. Allocated memory is still 153.1MB. Free memory was 114.6MB in the beginning and 97.5MB in the end (delta: 17.1MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * TraceAbstraction took 18431.06ms. Allocated memory was 153.1MB in the beginning and 232.8MB in the end (delta: 79.7MB). Free memory was 97.5MB in the beginning and 83.2MB in the end (delta: 14.3MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. * Witness Printer took 113.71ms. Allocated memory is still 232.8MB. Free memory was 83.2MB in the beginning and 76.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.8s, 168 PlacesBefore, 47 PlacesAfterwards, 158 TransitionsBefore, 35 TransitionsAfterwards, 3782 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 140 TotalNumberOfCompositions, 10413 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3900, independent: 3618, independent conditional: 0, independent unconditional: 3618, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2488, independent: 2420, independent conditional: 0, independent unconditional: 2420, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2488, independent: 2368, independent conditional: 0, independent unconditional: 2368, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 120, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1102, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 958, dependent conditional: 0, dependent unconditional: 958, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3900, independent: 1198, independent conditional: 0, independent unconditional: 1198, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 2488, unknown conditional: 0, unknown unconditional: 2488] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 832]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 832]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 195 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 18.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 6 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4750occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:45:47,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686b798d-cd54-4e7a-8e30-ce9327b19426/bin/utaipan-verify-NcY6lQBIFX/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