./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:39:57,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:39:57,618 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:39:57,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:39:57,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:39:57,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:39:57,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:39:57,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:39:57,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:39:57,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:39:57,682 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:39:57,683 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:39:57,684 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:39:57,685 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:39:57,687 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:39:57,688 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:39:57,688 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:39:57,688 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:39:57,689 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:39:57,689 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:39:57,690 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:39:57,694 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:39:57,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:39:57,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:39:57,695 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:39:57,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:39:57,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:39:57,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:39:57,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:39:57,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:39:57,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:39:57,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:39:57,701 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:39:57,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:39:57,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:39:57,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:39:57,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:39:57,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:39:57,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:57,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:39:57,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:39:57,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:39:57,706 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:39:57,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:39:57,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:39:57,706 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:39:57,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:39:57,707 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_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 [2024-11-02 12:39:58,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:39:58,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:39:58,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:39:58,122 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:39:58,123 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:39:58,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/mix013.opt.i Unable to find full path for "g++" [2024-11-02 12:40:00,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:40:00,642 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:40:00,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/sv-benchmarks/c/pthread-wmm/mix013.opt.i [2024-11-02 12:40:00,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/data/664bf7659/6a647b7807c64e9d9ad5eb64ccb5602c/FLAGaeb290d02 [2024-11-02 12:40:00,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/data/664bf7659/6a647b7807c64e9d9ad5eb64ccb5602c [2024-11-02 12:40:00,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:40:00,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:40:00,693 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:00,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:40:00,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:40:00,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7031b767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:00, skipping insertion in model container [2024-11-02 12:40:00,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:00" (1/1) ... [2024-11-02 12:40:00,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:01,011 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/sv-benchmarks/c/pthread-wmm/mix013.opt.i[944,957] [2024-11-02 12:40:01,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:01,353 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:01,368 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/sv-benchmarks/c/pthread-wmm/mix013.opt.i[944,957] [2024-11-02 12:40:01,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:01,527 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:01,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01 WrapperNode [2024-11-02 12:40:01,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:01,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:01,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:01,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:01,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,636 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2024-11-02 12:40:01,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:01,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:01,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:01,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:01,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:01,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:01,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:01,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:01,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (1/1) ... [2024-11-02 12:40:01,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:01,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:01,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:01,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e0bf1-05ba-451a-9cd1-fae23d62e731/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:40:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:40:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:40:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:40:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:40:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:40:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:40:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-02 12:40:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-02 12:40:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:40:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:40:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:01,902 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:40:02,135 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:02,147 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:02,619 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:40:02,619 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:40:02,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:40:02,945 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:40:02,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:02 BoogieIcfgContainer [2024-11-02 12:40:02,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:40:02,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:40:02,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:40:02,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:40:02,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:40:00" (1/3) ... [2024-11-02 12:40:02,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509e839e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:02, skipping insertion in model container [2024-11-02 12:40:02,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:01" (2/3) ... [2024-11-02 12:40:02,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509e839e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:02, skipping insertion in model container [2024-11-02 12:40:02,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:02" (3/3) ... [2024-11-02 12:40:02,959 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.opt.i [2024-11-02 12:40:02,979 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:40:02,979 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:40:02,979 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:40:03,104 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:40:03,152 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 50 transitions, 116 flow [2024-11-02 12:40:05,498 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35016 states, 35013 states have (on average 4.369719818353183) internal successors, (152997), 35015 states have internal predecessors, (152997), 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) [2024-11-02 12:40:05,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:40:05,657 INFO L333 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, 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;@31729e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:40:05,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-02 12:40:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 35016 states, 35013 states have (on average 4.369719818353183) internal successors, (152997), 35015 states have internal predecessors, (152997), 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) [2024-11-02 12:40:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:40:05,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:05,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:05,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:05,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1584569766, now seen corresponding path program 1 times [2024-11-02 12:40:05,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:05,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966855949] [2024-11-02 12:40:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:05,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:06,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:06,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966855949] [2024-11-02 12:40:06,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966855949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:06,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:06,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:40:06,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182399170] [2024-11-02 12:40:06,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:06,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:40:06,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:40:06,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:40:06,600 INFO L87 Difference]: Start difference. First operand has 35016 states, 35013 states have (on average 4.369719818353183) internal successors, (152997), 35015 states have internal predecessors, (152997), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-02 12:40:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:07,854 INFO L93 Difference]: Finished difference Result 36584 states and 159409 transitions. [2024-11-02 12:40:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:40:07,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2024-11-02 12:40:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:08,622 INFO L225 Difference]: With dead ends: 36584 [2024-11-02 12:40:08,622 INFO L226 Difference]: Without dead ends: 29136 [2024-11-02 12:40:08,658 INFO L431 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 [2024-11-02 12:40:08,662 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:08,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 44 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:40:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29136 states. [2024-11-02 12:40:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29136 to 29136. [2024-11-02 12:40:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29136 states, 29135 states have (on average 4.3251072593101085) internal successors, (126012), 29135 states have internal predecessors, (126012), 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) [2024-11-02 12:40:10,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29136 states to 29136 states and 126012 transitions. [2024-11-02 12:40:10,627 INFO L78 Accepts]: Start accepts. Automaton has 29136 states and 126012 transitions. Word has length 10 [2024-11-02 12:40:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:10,629 INFO L471 AbstractCegarLoop]: Abstraction has 29136 states and 126012 transitions. [2024-11-02 12:40:10,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-02 12:40:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand 29136 states and 126012 transitions. [2024-11-02 12:40:10,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 12:40:10,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:10,652 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:10,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:40:10,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:10,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:10,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1004378493, now seen corresponding path program 1 times [2024-11-02 12:40:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:10,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224023656] [2024-11-02 12:40:10,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:10,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:10,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224023656] [2024-11-02 12:40:10,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224023656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:11,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:11,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:40:11,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754636212] [2024-11-02 12:40:11,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:11,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:40:11,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:11,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:40:11,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:11,004 INFO L87 Difference]: Start difference. First operand 29136 states and 126012 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-02 12:40:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:12,422 INFO L93 Difference]: Finished difference Result 44788 states and 190276 transitions. [2024-11-02 12:40:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:40:12,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2024-11-02 12:40:12,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:12,782 INFO L225 Difference]: With dead ends: 44788 [2024-11-02 12:40:12,783 INFO L226 Difference]: Without dead ends: 22836 [2024-11-02 12:40:12,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:40:12,847 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 82 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:12,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 55 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:40:12,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22836 states. [2024-11-02 12:40:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22836 to 22836. [2024-11-02 12:40:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22836 states, 22835 states have (on average 4.138909568644625) internal successors, (94512), 22835 states have internal predecessors, (94512), 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) [2024-11-02 12:40:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22836 states to 22836 states and 94512 transitions. [2024-11-02 12:40:14,547 INFO L78 Accepts]: Start accepts. Automaton has 22836 states and 94512 transitions. Word has length 16 [2024-11-02 12:40:14,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:14,548 INFO L471 AbstractCegarLoop]: Abstraction has 22836 states and 94512 transitions. [2024-11-02 12:40:14,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-02 12:40:14,549 INFO L276 IsEmpty]: Start isEmpty. Operand 22836 states and 94512 transitions. [2024-11-02 12:40:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:40:14,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:14,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:14,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:40:14,597 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:14,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:14,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2028943895, now seen corresponding path program 1 times [2024-11-02 12:40:14,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543373138] [2024-11-02 12:40:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:14,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:14,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543373138] [2024-11-02 12:40:14,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543373138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:14,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:14,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:40:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888702835] [2024-11-02 12:40:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:14,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:40:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:14,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:40:14,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:40:14,961 INFO L87 Difference]: Start difference. First operand 22836 states and 94512 transitions. Second operand has 5 states, 5 states have (on average 4.2) 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) [2024-11-02 12:40:15,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:15,599 INFO L93 Difference]: Finished difference Result 29248 states and 118516 transitions. [2024-11-02 12:40:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:40:15,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) 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 [2024-11-02 12:40:15,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:15,783 INFO L225 Difference]: With dead ends: 29248 [2024-11-02 12:40:15,784 INFO L226 Difference]: Without dead ends: 13596 [2024-11-02 12:40:15,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:40:15,837 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 138 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:15,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 72 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:40:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13596 states. [2024-11-02 12:40:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13596 to 13596. [2024-11-02 12:40:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13596 states, 13595 states have (on average 3.893490253769768) internal successors, (52932), 13595 states have internal predecessors, (52932), 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) [2024-11-02 12:40:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13596 states to 13596 states and 52932 transitions. [2024-11-02 12:40:16,940 INFO L78 Accepts]: Start accepts. Automaton has 13596 states and 52932 transitions. Word has length 21 [2024-11-02 12:40:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:16,940 INFO L471 AbstractCegarLoop]: Abstraction has 13596 states and 52932 transitions. [2024-11-02 12:40:16,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) 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) [2024-11-02 12:40:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13596 states and 52932 transitions. [2024-11-02 12:40:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:40:16,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:16,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:16,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:40:16,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:16,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1975855316, now seen corresponding path program 1 times [2024-11-02 12:40:16,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:16,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263158314] [2024-11-02 12:40:16,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:16,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:17,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:17,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263158314] [2024-11-02 12:40:17,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263158314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:17,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:17,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:40:17,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845957775] [2024-11-02 12:40:17,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:17,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:40:17,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:17,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:40:17,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:40:17,373 INFO L87 Difference]: Start difference. First operand 13596 states and 52932 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-02 12:40:17,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:17,795 INFO L93 Difference]: Finished difference Result 14940 states and 57388 transitions. [2024-11-02 12:40:17,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:40:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2024-11-02 12:40:17,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:17,870 INFO L225 Difference]: With dead ends: 14940 [2024-11-02 12:40:17,871 INFO L226 Difference]: Without dead ends: 8528 [2024-11-02 12:40:17,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:40:17,891 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 216 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:17,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 86 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:40:17,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8528 states. [2024-11-02 12:40:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8528 to 8528. [2024-11-02 12:40:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.830186466518119) internal successors, (32660), 8527 states have internal predecessors, (32660), 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) [2024-11-02 12:40:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 32660 transitions. [2024-11-02 12:40:18,677 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 32660 transitions. Word has length 26 [2024-11-02 12:40:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:18,679 INFO L471 AbstractCegarLoop]: Abstraction has 8528 states and 32660 transitions. [2024-11-02 12:40:18,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-02 12:40:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 32660 transitions. [2024-11-02 12:40:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-02 12:40:18,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:18,714 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:18,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:40:18,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:18,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash 939674133, now seen corresponding path program 1 times [2024-11-02 12:40:18,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:18,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284425204] [2024-11-02 12:40:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:18,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:19,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:19,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284425204] [2024-11-02 12:40:19,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284425204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:19,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:19,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:40:19,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744234365] [2024-11-02 12:40:19,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:19,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:40:19,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:19,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:40:19,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:40:19,107 INFO L87 Difference]: Start difference. First operand 8528 states and 32660 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-11-02 12:40:19,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:19,453 INFO L93 Difference]: Finished difference Result 8640 states and 32980 transitions. [2024-11-02 12:40:19,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:40:19,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2024-11-02 12:40:19,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:19,515 INFO L225 Difference]: With dead ends: 8640 [2024-11-02 12:40:19,515 INFO L226 Difference]: Without dead ends: 7296 [2024-11-02 12:40:19,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:40:19,523 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 215 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:19,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 74 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:40:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7296 states. [2024-11-02 12:40:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7296 to 7296. [2024-11-02 12:40:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7296 states, 7295 states have (on average 3.8859492803289926) internal successors, (28348), 7295 states have internal predecessors, (28348), 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) [2024-11-02 12:40:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 28348 transitions. [2024-11-02 12:40:19,790 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 28348 transitions. Word has length 32 [2024-11-02 12:40:19,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:19,791 INFO L471 AbstractCegarLoop]: Abstraction has 7296 states and 28348 transitions. [2024-11-02 12:40:19,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-11-02 12:40:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 28348 transitions. [2024-11-02 12:40:19,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:40:19,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:19,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:19,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:40:19,827 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1063246087, now seen corresponding path program 1 times [2024-11-02 12:40:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:19,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645600656] [2024-11-02 12:40:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:19,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:20,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:20,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645600656] [2024-11-02 12:40:20,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645600656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:20,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:20,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:40:20,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602698174] [2024-11-02 12:40:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:20,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:40:20,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:20,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:40:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:40:20,702 INFO L87 Difference]: Start difference. First operand 7296 states and 28348 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2024-11-02 12:40:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:21,091 INFO L93 Difference]: Finished difference Result 10480 states and 40220 transitions. [2024-11-02 12:40:21,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:40:21,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2024-11-02 12:40:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:21,146 INFO L225 Difference]: With dead ends: 10480 [2024-11-02 12:40:21,146 INFO L226 Difference]: Without dead ends: 4992 [2024-11-02 12:40:21,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:40:21,160 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 57 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:21,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 164 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:40:21,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2024-11-02 12:40:21,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4992. [2024-11-02 12:40:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 4991 states have (on average 3.753957122821078) internal successors, (18736), 4991 states have internal predecessors, (18736), 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) [2024-11-02 12:40:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 18736 transitions. [2024-11-02 12:40:21,336 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 18736 transitions. Word has length 38 [2024-11-02 12:40:21,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:21,336 INFO L471 AbstractCegarLoop]: Abstraction has 4992 states and 18736 transitions. [2024-11-02 12:40:21,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2024-11-02 12:40:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 18736 transitions. [2024-11-02 12:40:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:40:21,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:21,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:21,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:40:21,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:21,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash -542311853, now seen corresponding path program 2 times [2024-11-02 12:40:21,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760260069] [2024-11-02 12:40:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:21,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:40:21,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:40:21,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760260069] [2024-11-02 12:40:21,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760260069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:21,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:21,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:40:21,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814481474] [2024-11-02 12:40:21,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:21,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:40:21,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:40:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:40:21,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:40:21,850 INFO L87 Difference]: Start difference. First operand 4992 states and 18736 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2024-11-02 12:40:22,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:22,160 INFO L93 Difference]: Finished difference Result 6544 states and 24304 transitions. [2024-11-02 12:40:22,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:40:22,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2024-11-02 12:40:22,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:22,361 INFO L225 Difference]: With dead ends: 6544 [2024-11-02 12:40:22,361 INFO L226 Difference]: Without dead ends: 3012 [2024-11-02 12:40:22,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:40:22,369 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 62 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:22,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 169 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:40:22,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2024-11-02 12:40:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 3012. [2024-11-02 12:40:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3012 states, 3011 states have (on average 3.5821986051145798) internal successors, (10786), 3011 states have internal predecessors, (10786), 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) [2024-11-02 12:40:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3012 states to 3012 states and 10786 transitions. [2024-11-02 12:40:22,509 INFO L78 Accepts]: Start accepts. Automaton has 3012 states and 10786 transitions. Word has length 38 [2024-11-02 12:40:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:22,509 INFO L471 AbstractCegarLoop]: Abstraction has 3012 states and 10786 transitions. [2024-11-02 12:40:22,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2024-11-02 12:40:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3012 states and 10786 transitions. [2024-11-02 12:40:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:40:22,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:22,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:22,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:40:22,523 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:40:22,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash 475464847, now seen corresponding path program 3 times [2024-11-02 12:40:22,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:22,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658669758] [2024-11-02 12:40:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:22,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat