./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/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_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:36,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:37,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 11:25:37,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:37,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:37,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:37,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:37,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:37,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:37,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:37,043 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:37,043 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:37,044 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:37,044 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:37,045 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:37,045 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:37,046 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:37,046 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:37,047 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:37,047 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:37,048 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:37,048 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:37,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 11:25:37,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 11:25:37,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:37,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:37,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:37,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:37,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:37,054 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 11:25:37,055 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 11:25:37,055 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 11:25:37,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:37,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:25:37,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:37,060 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:25:37,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:37,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:37,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:37,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:37,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:37,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:37,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:37,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:37,065 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:37,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:37,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:37,066 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:37,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:37,067 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_b9b8ce8b-e6cf-414b-baf9-32059077e017/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd [2024-11-02 11:25:37,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:37,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:37,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:37,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:37,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:37,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i Unable to find full path for "g++" [2024-11-02 11:25:39,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:40,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:40,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i [2024-11-02 11:25:40,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/data/a756b112a/97d5451b160e45a4975f56e2194f64a4/FLAG2c5822a8b [2024-11-02 11:25:40,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/data/a756b112a/97d5451b160e45a4975f56e2194f64a4 [2024-11-02 11:25:40,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:40,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:40,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:40,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:40,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:40,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:40" (1/1) ... [2024-11-02 11:25:40,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fef1526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:40, skipping insertion in model container [2024-11-02 11:25:40,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:40" (1/1) ... [2024-11-02 11:25:40,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:41,535 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 11:25:41,565 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 11:25:41,586 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 11:25:41,664 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 11:25:41,747 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 11:25:41,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:41,852 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:42,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:42,279 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:42,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42 WrapperNode [2024-11-02 11:25:42,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:42,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:42,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:42,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:42,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,587 INFO L138 Inliner]: procedures = 474, calls = 2708, calls flagged for inlining = 56, calls inlined = 38, statements flattened = 3407 [2024-11-02 11:25:42,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:42,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:42,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:42,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:42,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:42,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:42,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:42,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:42,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (1/1) ... [2024-11-02 11:25:42,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:42,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:42,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:42,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b8ce8b-e6cf-414b-baf9-32059077e017/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-02 11:25:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-02 11:25:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 11:25:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-02 11:25:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-02 11:25:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-02 11:25:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:25:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-02 11:25:42,970 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-02 11:25:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 11:25:42,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-02 11:25:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-02 11:25:42,971 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-02 11:25:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:25:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 11:25:42,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 11:25:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 11:25:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-02 11:25:42,973 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-02 11:25:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 11:25:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-02 11:25:42,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-02 11:25:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-02 11:25:42,974 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-02 11:25:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-02 11:25:42,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-02 11:25:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-02 11:25:42,975 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-02 11:25:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:42,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-02 11:25:42,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-02 11:25:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:25:42,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:25:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-02 11:25:42,976 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-02 11:25:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:25:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 11:25:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-02 11:25:42,976 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-02 11:25:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-02 11:25:42,976 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-02 11:25:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-02 11:25:42,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-02 11:25:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 11:25:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-02 11:25:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-02 11:25:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-02 11:25:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-02 11:25:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-02 11:25:42,980 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-02 11:25:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-02 11:25:42,981 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-02 11:25:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-02 11:25:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-02 11:25:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-02 11:25:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-02 11:25:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:25:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-02 11:25:42,983 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-02 11:25:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-02 11:25:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-02 11:25:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-02 11:25:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-02 11:25:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-02 11:25:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-02 11:25:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 11:25:42,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 11:25:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:25:43,440 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:43,444 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:49,911 INFO L? ?]: Removed 651 outVars from TransFormulas that were not future-live. [2024-11-02 11:25:49,912 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:50,799 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:50,804 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-02 11:25:50,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:50 BoogieIcfgContainer [2024-11-02 11:25:50,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:50,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:50,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:50,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:50,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:40" (1/3) ... [2024-11-02 11:25:50,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e8390d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:50, skipping insertion in model container [2024-11-02 11:25:50,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:42" (2/3) ... [2024-11-02 11:25:50,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e8390d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:50, skipping insertion in model container [2024-11-02 11:25:50,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:50" (3/3) ... [2024-11-02 11:25:50,821 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_all.i [2024-11-02 11:25:50,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:50,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 206 error locations. [2024-11-02 11:25:50,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:50,931 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=None, 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;@5200e10b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:50,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 206 error locations. [2024-11-02 11:25:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 586 states, 271 states have (on average 1.996309963099631) internal successors, (541), 483 states have internal predecessors, (541), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-02 11:25:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 11:25:50,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:50,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 11:25:50,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2024-11-02 11:25:50,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:50,956 INFO L85 PathProgramCache]: Analyzing trace with hash 45155470, now seen corresponding path program 1 times [2024-11-02 11:25:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:50,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78976448] [2024-11-02 11:25:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:50,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:56,350 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 11:25:56,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:56,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78976448] [2024-11-02 11:25:56,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78976448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:56,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:56,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:56,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978452519] [2024-11-02 11:25:56,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:56,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:25:56,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:56,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:25:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:25:56,396 INFO L87 Difference]: Start difference. First operand has 586 states, 271 states have (on average 1.996309963099631) internal successors, (541), 483 states have internal predecessors, (541), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:58,597 INFO L93 Difference]: Finished difference Result 1061 states and 1265 transitions. [2024-11-02 11:25:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:25:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-02 11:25:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:58,624 INFO L225 Difference]: With dead ends: 1061 [2024-11-02 11:25:58,624 INFO L226 Difference]: Without dead ends: 1059 [2024-11-02 11:25:58,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:25:58,629 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 595 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:58,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1796 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-02 11:25:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-02 11:25:58,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 865. [2024-11-02 11:25:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 463 states have (on average 1.980561555075594) internal successors, (917), 686 states have internal predecessors, (917), 144 states have call successors, (144), 52 states have call predecessors, (144), 52 states have return successors, (144), 137 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-02 11:25:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1205 transitions. [2024-11-02 11:25:58,796 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1205 transitions. Word has length 4 [2024-11-02 11:25:58,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:58,797 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1205 transitions. [2024-11-02 11:25:58,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1205 transitions. [2024-11-02 11:25:58,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 11:25:58,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:58,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 11:25:58,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:25:58,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2024-11-02 11:25:58,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:58,799 INFO L85 PathProgramCache]: Analyzing trace with hash 45155471, now seen corresponding path program 1 times [2024-11-02 11:25:58,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:58,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78766167] [2024-11-02 11:25:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:58,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:03,270 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 11:26:03,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:03,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78766167] [2024-11-02 11:26:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78766167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:03,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:03,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:26:03,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856013251] [2024-11-02 11:26:03,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:03,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:26:03,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:03,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:26:03,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:26:03,275 INFO L87 Difference]: Start difference. First operand 865 states and 1205 transitions. Second operand has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:05,207 INFO L93 Difference]: Finished difference Result 995 states and 1297 transitions. [2024-11-02 11:26:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:26:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-02 11:26:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:05,215 INFO L225 Difference]: With dead ends: 995 [2024-11-02 11:26:05,215 INFO L226 Difference]: Without dead ends: 995 [2024-11-02 11:26:05,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:26:05,217 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 248 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:05,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1915 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-02 11:26:05,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-02 11:26:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 935. [2024-11-02 11:26:05,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 497 states have (on average 1.9336016096579476) internal successors, (961), 721 states have internal predecessors, (961), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 159 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-02 11:26:05,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1293 transitions. [2024-11-02 11:26:05,274 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1293 transitions. Word has length 4 [2024-11-02 11:26:05,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:05,275 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1293 transitions. [2024-11-02 11:26:05,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:05,276 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1293 transitions. [2024-11-02 11:26:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 11:26:05,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:05,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:05,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:26:05,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2024-11-02 11:26:05,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:05,282 INFO L85 PathProgramCache]: Analyzing trace with hash 367048404, now seen corresponding path program 1 times [2024-11-02 11:26:05,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:05,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281072563] [2024-11-02 11:26:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:05,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms