./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:21:12,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:21:12,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:21:12,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:21:12,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:21:12,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:21:12,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:21:12,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:21:12,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:21:12,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:21:12,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:21:12,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:21:12,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:21:12,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:21:12,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:21:12,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:21:12,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:21:12,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:21:12,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:21:12,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:21:12,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:21:12,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:21:12,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:21:12,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:21:12,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:21:12,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:21:12,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:21:12,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:21:12,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:21:12,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:21:12,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:21:12,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:21:12,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:21:12,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:21:12,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:21:12,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:21:12,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:21:12,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:21:12,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:21:12,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:21:12,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:21:12,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:21:12,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:21:12,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:21:12,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:21:12,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:21:12,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:21:12,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:21:12,927 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:21:12,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:21:12,928 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:21:12,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:21:12,929 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:21:12,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:21:12,930 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:21:12,930 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:21:12,930 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:21:12,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:21:12,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:21:12,931 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:21:12,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:21:12,932 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:21:12,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:21:12,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:21:12,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:21:12,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:21:12,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:21:12,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:21:12,935 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:21:12,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:21:12,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:21:12,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:21:12,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:21:12,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:21:12,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:12,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:21:12,937 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:21:12,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:21:12,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:21:12,938 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:21:12,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:21:12,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:21:12,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:21:12,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2022-11-03 02:21:13,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:21:13,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:21:13,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:21:13,253 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:21:13,253 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:21:13,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-03 02:21:13,329 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/data/9e2741106/3893250eadea4b52b49869ae41a3f03e/FLAG26928255c [2022-11-03 02:21:13,935 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:21:13,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-03 02:21:13,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/data/9e2741106/3893250eadea4b52b49869ae41a3f03e/FLAG26928255c [2022-11-03 02:21:14,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/data/9e2741106/3893250eadea4b52b49869ae41a3f03e [2022-11-03 02:21:14,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:21:14,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:21:14,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:14,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:21:14,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:21:14,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2353d03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14, skipping insertion in model container [2022-11-03 02:21:14,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:21:14,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:21:14,665 WARN L230 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_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-03 02:21:14,669 WARN L230 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_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-03 02:21:14,675 WARN L230 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_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-03 02:21:14,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:14,697 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:21:14,787 WARN L230 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_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-03 02:21:14,791 WARN L230 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_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-03 02:21:14,793 WARN L230 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_957209d1-7c46-4d1a-ab7f-44d37a181779/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-03 02:21:14,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:14,833 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:21:14,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14 WrapperNode [2022-11-03 02:21:14,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:14,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:14,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:21:14,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:21:14,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,923 INFO L138 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 128 [2022-11-03 02:21:14,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:14,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:21:14,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:21:14,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:21:14,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:14,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:21:14,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:21:15,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:21:15,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:21:15,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (1/1) ... [2022-11-03 02:21:15,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:15,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:15,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:21:15,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:21:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-03 02:21:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-03 02:21:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:21:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 02:21:15,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 02:21:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:21:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:21:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-03 02:21:15,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-03 02:21:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:21:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:21:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:21:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:21:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-03 02:21:15,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-03 02:21:15,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:21:15,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:21:15,297 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:21:15,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:21:15,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:21:15,786 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:21:15,787 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:21:15,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:15 BoogieIcfgContainer [2022-11-03 02:21:15,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:21:15,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:21:15,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:21:15,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:21:15,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:21:14" (1/3) ... [2022-11-03 02:21:15,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7277de41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:15, skipping insertion in model container [2022-11-03 02:21:15,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:14" (2/3) ... [2022-11-03 02:21:15,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7277de41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:15, skipping insertion in model container [2022-11-03 02:21:15,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:15" (3/3) ... [2022-11-03 02:21:15,800 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2022-11-03 02:21:15,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:21:15,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:21:15,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:21:15,967 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@131274ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:21:15,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:21:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-03 02:21:15,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:21:15,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:15,980 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:15,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2027166430, now seen corresponding path program 1 times [2022-11-03 02:21:15,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:15,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487457365] [2022-11-03 02:21:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:15,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:16,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:21:16,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:16,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487457365] [2022-11-03 02:21:16,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487457365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:16,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:16,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:21:16,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883707478] [2022-11-03 02:21:16,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:16,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:21:16,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:21:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:21:16,476 INFO L87 Difference]: Start difference. First operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 02:21:16,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:16,595 INFO L93 Difference]: Finished difference Result 88 states and 112 transitions. [2022-11-03 02:21:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:21:16,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-11-03 02:21:16,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:16,611 INFO L225 Difference]: With dead ends: 88 [2022-11-03 02:21:16,612 INFO L226 Difference]: Without dead ends: 47 [2022-11-03 02:21:16,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:21:16,623 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:16,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:21:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-03 02:21:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-03 02:21:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 32 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2022-11-03 02:21:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-03 02:21:16,672 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 19 [2022-11-03 02:21:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:16,673 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-03 02:21:16,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 02:21:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-03 02:21:16,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:21:16,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:16,675 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:16,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:21:16,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:16,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1652159754, now seen corresponding path program 1 times [2022-11-03 02:21:16,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:16,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114100602] [2022-11-03 02:21:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:16,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:21:17,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:17,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114100602] [2022-11-03 02:21:17,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114100602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:17,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:17,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:21:17,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87582161] [2022-11-03 02:21:17,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:17,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:21:17,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:21:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:21:17,296 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 02:21:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:17,761 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2022-11-03 02:21:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:21:17,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-03 02:21:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:17,766 INFO L225 Difference]: With dead ends: 133 [2022-11-03 02:21:17,766 INFO L226 Difference]: Without dead ends: 92 [2022-11-03 02:21:17,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:21:17,768 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 51 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:17,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 132 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:21:17,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-03 02:21:17,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 71. [2022-11-03 02:21:17,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 49 states have internal predecessors, (55), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2022-11-03 02:21:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2022-11-03 02:21:17,797 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 20 [2022-11-03 02:21:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:17,798 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2022-11-03 02:21:17,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 02:21:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2022-11-03 02:21:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:21:17,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:17,802 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-11-03 02:21:17,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:21:17,803 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash -194427046, now seen corresponding path program 1 times [2022-11-03 02:21:17,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:17,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273930627] [2022-11-03 02:21:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:17,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:21:23,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:23,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273930627] [2022-11-03 02:21:23,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273930627] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:21:23,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816646642] [2022-11-03 02:21:23,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:23,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:23,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:23,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:23,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:21:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:24,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-03 02:21:24,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:24,528 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:21:24,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:21:24,829 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 02:21:24,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 02:21:25,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:21:25,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:21:28,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:28,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:29,043 INFO L356 Elim1Store]: treesize reduction 158, result has 24.0 percent of original size [2022-11-03 02:21:29,044 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: var is still there: |v_#memory_$Pointer$.base_BEFORE_CALL_4| input size 73 context size 73 output size 73 [2022-11-03 02:21:29,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1686465572] [2022-11-03 02:21:29,073 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-03 02:21:29,073 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:21:29,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:21:29,090 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:21:29,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:29,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:21:29,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:21:29,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:29,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:29,407 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:21:29,409 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:21:29,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:29,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:29,577 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:21:29,579 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:21:29,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:21:29,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:21:29,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 02:21:29,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:29,916 INFO L356 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-03 02:21:29,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-03 02:21:30,001 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-03 02:21:30,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2022-11-03 02:21:30,044 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 02:21:30,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 31 [2022-11-03 02:21:30,084 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-03 02:21:30,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2022-11-03 02:21:30,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:30,200 INFO L356 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-03 02:21:30,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-03 02:21:30,261 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:30,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:21:30,289 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:30,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:21:30,365 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:30,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:21:30,390 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:30,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:21:30,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:30,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:21:30,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:30,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:21:30,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:30,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:30,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:30,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:21:30,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:30,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:21:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:30,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:21:30,645 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 98 for LOIs [2022-11-03 02:21:32,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:32,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:32,756 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:21:32,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 378 treesize of output 378 [2022-11-03 02:21:32,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:32,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:32,818 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:21:32,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 366 treesize of output 366 [2022-11-03 02:21:32,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:32,869 INFO L356 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-03 02:21:32,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 354 treesize of output 348 [2022-11-03 02:21:32,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 316 [2022-11-03 02:21:32,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 314 [2022-11-03 02:21:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:33,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:33,982 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:21:33,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 378 treesize of output 378 [2022-11-03 02:21:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:34,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:34,046 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:21:34,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 366 treesize of output 366 [2022-11-03 02:21:34,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 352 [2022-11-03 02:21:34,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:34,123 INFO L356 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-03 02:21:34,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 346 [2022-11-03 02:21:34,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 314 [2022-11-03 02:21:35,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:35,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:35,315 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:21:35,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 378 treesize of output 378 [2022-11-03 02:21:35,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:35,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:35,375 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:21:35,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 366 treesize of output 366 [2022-11-03 02:21:35,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:21:35,428 INFO L356 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-03 02:21:35,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 354 treesize of output 348 [2022-11-03 02:21:35,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 316 [2022-11-03 02:21:35,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 314 [2022-11-03 02:21:36,343 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 123 for LOIs [2022-11-03 02:21:36,462 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 31 for LOIs [2022-11-03 02:21:36,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:21:36,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:21:36,494 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 96 for LOIs [2022-11-03 02:21:36,698 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:21:51,403 WARN L234 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 173 DAG size of output: 113 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:21:54,745 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '665#(and (= |old(#length)| |#length|) (= |mutex_lock_#in~m#1.offset| 0) (= |mutex_lock_#in~m#1.base| |mutex_lock_~m#1.base|) (= |~#mutexes~0.base| 3) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |~#mutexes~0.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (< |mutex_lock_#in~m#1.base| |#StackHeapBarrier|) (= |#NULL.offset| 0) (= |old(#valid)| |#valid|) (not (= |mutex_lock_#in~m#1.base| 0)) (= |mutex_lock_#in~m#1.offset| |mutex_lock_~m#1.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:21:54,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:21:54,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:21:54,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-11-03 02:21:54,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094292617] [2022-11-03 02:21:54,746 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-03 02:21:54,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 02:21:54,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:54,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 02:21:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4321, Unknown=46, NotChecked=0, Total=4692 [2022-11-03 02:21:54,750 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 27 states, 16 states have (on average 1.875) internal successors, (30), 20 states have internal predecessors, (30), 9 states have call successors, (9), 4 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 02:21:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:57,939 INFO L93 Difference]: Finished difference Result 172 states and 225 transitions. [2022-11-03 02:21:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 02:21:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 16 states have (on average 1.875) internal successors, (30), 20 states have internal predecessors, (30), 9 states have call successors, (9), 4 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 47 [2022-11-03 02:21:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:57,951 INFO L225 Difference]: With dead ends: 172 [2022-11-03 02:21:57,951 INFO L226 Difference]: Without dead ends: 134 [2022-11-03 02:21:57,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=509, Invalid=7101, Unknown=46, NotChecked=0, Total=7656 [2022-11-03 02:21:57,961 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 170 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:57,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 584 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:21:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-03 02:21:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2022-11-03 02:21:58,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 73 states have internal predecessors, (83), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (42), 23 states have call predecessors, (42), 21 states have call successors, (42) [2022-11-03 02:21:58,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 146 transitions. [2022-11-03 02:21:58,021 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 146 transitions. Word has length 47 [2022-11-03 02:21:58,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:58,022 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 146 transitions. [2022-11-03 02:21:58,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 16 states have (on average 1.875) internal successors, (30), 20 states have internal predecessors, (30), 9 states have call successors, (9), 4 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 02:21:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 146 transitions. [2022-11-03 02:21:58,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 02:21:58,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:58,026 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:21:58,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:58,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:58,246 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:58,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1952322940, now seen corresponding path program 2 times [2022-11-03 02:21:58,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:58,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872418189] [2022-11-03 02:21:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:58,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:21:58,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:58,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872418189] [2022-11-03 02:21:58,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872418189] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:21:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598369844] [2022-11-03 02:21:58,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:21:58,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:58,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:58,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:21:58,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:21:58,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:21:58,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:21:58,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:21:58,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:58,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598369844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:58,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:21:58,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-03 02:21:58,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634340607] [2022-11-03 02:21:58,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:58,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:21:58,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:58,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:21:58,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:58,626 INFO L87 Difference]: Start difference. First operand 105 states and 146 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:21:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:58,732 INFO L93 Difference]: Finished difference Result 173 states and 237 transitions. [2022-11-03 02:21:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:21:58,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-03 02:21:58,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:58,735 INFO L225 Difference]: With dead ends: 173 [2022-11-03 02:21:58,735 INFO L226 Difference]: Without dead ends: 113 [2022-11-03 02:21:58,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:58,737 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:58,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:21:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-03 02:21:58,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-11-03 02:21:58,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 78 states have internal predecessors, (90), 21 states have call successors, (21), 8 states have call predecessors, (21), 15 states have return successors, (43), 26 states have call predecessors, (43), 21 states have call successors, (43) [2022-11-03 02:21:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 154 transitions. [2022-11-03 02:21:58,759 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 154 transitions. Word has length 48 [2022-11-03 02:21:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:58,759 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 154 transitions. [2022-11-03 02:21:58,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:21:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 154 transitions. [2022-11-03 02:21:58,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-03 02:21:58,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:58,762 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:21:58,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:58,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:58,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:58,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash -968639607, now seen corresponding path program 1 times [2022-11-03 02:21:58,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:58,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271579747] [2022-11-03 02:21:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 02:22:02,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:02,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271579747] [2022-11-03 02:22:02,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271579747] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:02,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057502664] [2022-11-03 02:22:02,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:02,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:02,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:02,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:22:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:03,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-03 02:22:03,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:03,371 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:22:03,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:22:03,679 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:22:03,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:22:03,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:22:03,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:22:05,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:22:06,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 136 [2022-11-03 02:22:06,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:06,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,439 INFO L356 Elim1Store]: treesize reduction 49, result has 37.2 percent of original size [2022-11-03 02:22:06,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 71 [2022-11-03 02:22:06,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:06,477 INFO L356 Elim1Store]: treesize reduction 184, result has 0.5 percent of original size [2022-11-03 02:22:06,478 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: var is still there: v_arrayElimArr_12 input size 131 context size 131 output size 131 [2022-11-03 02:22:06,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1489131541] [2022-11-03 02:22:06,483 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-03 02:22:06,483 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:06,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:06,484 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:06,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:06,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:22:06,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:22:06,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:06,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:06,673 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:22:06,675 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:22:06,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:06,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:06,766 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:22:06,768 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:22:06,931 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:06,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 02:22:06,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:07,027 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-03 02:22:07,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2022-11-03 02:22:07,057 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 02:22:07,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 31 [2022-11-03 02:22:07,087 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-03 02:22:07,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2022-11-03 02:22:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:07,196 INFO L356 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-03 02:22:07,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-03 02:22:07,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:07,292 INFO L356 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-03 02:22:07,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-03 02:22:07,337 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:07,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:07,373 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:07,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:07,429 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:07,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:07,449 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:07,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:07,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:07,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:07,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:07,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:07,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:07,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:07,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:07,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:07,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:07,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:07,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:07,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:07,668 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 93 for LOIs [2022-11-03 02:22:08,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:08,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:08,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 02:22:08,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:08,120 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:08,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:08,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:08,143 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:08,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:08,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:08,208 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:08,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:08,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:08,231 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:08,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:08,434 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 58 for LOIs [2022-11-03 02:22:08,481 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 31 for LOIs [2022-11-03 02:22:08,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:22:08,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:22:08,511 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 34 for LOIs [2022-11-03 02:22:08,625 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:19,344 WARN L234 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 108 DAG size of output: 104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:22:21,448 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1758#(and (= |mutex_lock_#in~m#1.offset| 0) (= |~#mutexes~0.base| 3) (<= |mutex_lock_~m#1.offset| 0) (<= 0 |mutex_lock_~m#1.offset|) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:22:21,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:22:21,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:22:21,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-11-03 02:22:21,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871300133] [2022-11-03 02:22:21,448 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-03 02:22:21,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 02:22:21,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:21,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 02:22:21,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=4702, Unknown=56, NotChecked=0, Total=5112 [2022-11-03 02:22:21,450 INFO L87 Difference]: Start difference. First operand 113 states and 154 transitions. Second operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 21 states have internal predecessors, (31), 8 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 02:22:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:24,962 INFO L93 Difference]: Finished difference Result 241 states and 316 transitions. [2022-11-03 02:22:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-03 02:22:24,963 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 21 states have internal predecessors, (31), 8 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 49 [2022-11-03 02:22:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:24,964 INFO L225 Difference]: With dead ends: 241 [2022-11-03 02:22:24,964 INFO L226 Difference]: Without dead ends: 128 [2022-11-03 02:22:24,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3562 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=726, Invalid=9724, Unknown=56, NotChecked=0, Total=10506 [2022-11-03 02:22:24,970 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 209 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:24,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 380 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 02:22:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-03 02:22:24,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 82. [2022-11-03 02:22:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 56 states have internal predecessors, (59), 17 states have call successors, (17), 8 states have call predecessors, (17), 12 states have return successors, (23), 17 states have call predecessors, (23), 17 states have call successors, (23) [2022-11-03 02:22:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2022-11-03 02:22:24,989 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 99 transitions. Word has length 49 [2022-11-03 02:22:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:24,989 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 99 transitions. [2022-11-03 02:22:24,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 21 states have internal predecessors, (31), 8 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 02:22:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2022-11-03 02:22:24,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-03 02:22:24,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:24,992 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:25,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:25,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:25,206 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1165185679, now seen corresponding path program 1 times [2022-11-03 02:22:25,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:25,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124806169] [2022-11-03 02:22:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:25,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:22:25,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:25,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124806169] [2022-11-03 02:22:25,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124806169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:25,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074544281] [2022-11-03 02:22:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:25,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:25,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:25,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:22:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:25,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:22:25,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:25,480 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:22:25,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:25,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074544281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:25,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:22:25,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-11-03 02:22:25,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925287162] [2022-11-03 02:22:25,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:25,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:22:25,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:25,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:22:25,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:22:25,483 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:22:25,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:25,558 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions. [2022-11-03 02:22:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:22:25,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2022-11-03 02:22:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:25,559 INFO L225 Difference]: With dead ends: 125 [2022-11-03 02:22:25,559 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 02:22:25,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:22:25,561 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:25,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:25,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 02:22:25,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2022-11-03 02:22:25,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 45 states have internal predecessors, (48), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 02:22:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2022-11-03 02:22:25,574 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 56 [2022-11-03 02:22:25,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:25,576 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2022-11-03 02:22:25,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:22:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2022-11-03 02:22:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 02:22:25,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:25,584 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:25,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:25,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:25,806 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:25,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:25,806 INFO L85 PathProgramCache]: Analyzing trace with hash 170584881, now seen corresponding path program 1 times [2022-11-03 02:22:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:25,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899947999] [2022-11-03 02:22:25,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:25,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 02:22:26,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:26,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899947999] [2022-11-03 02:22:26,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899947999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:26,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:26,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 02:22:26,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918846555] [2022-11-03 02:22:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:26,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:22:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:26,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:22:26,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:22:26,647 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 12 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 11 states have internal predecessors, (34), 5 states have call successors, (12), 1 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 02:22:27,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:27,338 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2022-11-03 02:22:27,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:22:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 11 states have internal predecessors, (34), 5 states have call successors, (12), 1 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) Word has length 76 [2022-11-03 02:22:27,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:27,341 INFO L225 Difference]: With dead ends: 86 [2022-11-03 02:22:27,341 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 02:22:27,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:22:27,342 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 72 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:27,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 230 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:22:27,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 02:22:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 68. [2022-11-03 02:22:27,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 46 states have internal predecessors, (49), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 02:22:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2022-11-03 02:22:27,367 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 76 [2022-11-03 02:22:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:27,368 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2022-11-03 02:22:27,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 11 states have internal predecessors, (34), 5 states have call successors, (12), 1 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 02:22:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2022-11-03 02:22:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 02:22:27,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:27,376 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:27,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:22:27,377 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:27,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:27,377 INFO L85 PathProgramCache]: Analyzing trace with hash -82754907, now seen corresponding path program 1 times [2022-11-03 02:22:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:27,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775059518] [2022-11-03 02:22:27,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:27,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-03 02:22:27,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:27,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775059518] [2022-11-03 02:22:27,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775059518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:27,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:27,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:27,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032344502] [2022-11-03 02:22:27,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:27,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:22:27,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:27,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:22:27,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:22:27,515 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-03 02:22:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:27,590 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2022-11-03 02:22:27,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:22:27,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 77 [2022-11-03 02:22:27,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:27,592 INFO L225 Difference]: With dead ends: 74 [2022-11-03 02:22:27,592 INFO L226 Difference]: Without dead ends: 72 [2022-11-03 02:22:27,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:22:27,593 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:27,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-03 02:22:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-03 02:22:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 49 states have internal predecessors, (52), 13 states have call successors, (13), 8 states have call predecessors, (13), 9 states have return successors, (14), 14 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-03 02:22:27,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2022-11-03 02:22:27,614 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 77 [2022-11-03 02:22:27,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:27,614 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2022-11-03 02:22:27,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-03 02:22:27,615 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2022-11-03 02:22:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 02:22:27,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:27,617 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:27,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:22:27,618 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash 955484706, now seen corresponding path program 2 times [2022-11-03 02:22:27,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:27,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172896177] [2022-11-03 02:22:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:27,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 02:22:34,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:34,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172896177] [2022-11-03 02:22:34,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172896177] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:34,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350333789] [2022-11-03 02:22:34,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:22:34,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:34,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:34,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:34,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:22:35,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-03 02:22:35,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:22:35,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 211 conjunts are in the unsatisfiable core [2022-11-03 02:22:35,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:35,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 02:22:36,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:22:36,369 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:22:36,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:22:37,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:37,399 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 02:22:37,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:22:37,437 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:22:37,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 26 [2022-11-03 02:22:37,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 02:22:37,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-03 02:22:37,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 02:22:37,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:53,780 WARN L234 SmtUtils]: Spent 15.53s on a formula simplification. DAG size of input: 139 DAG size of output: 79 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:22:53,780 INFO L356 Elim1Store]: treesize reduction 440, result has 35.4 percent of original size [2022-11-03 02:22:53,782 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: var is still there: |v_#memory_$Pointer$.base_BEFORE_CALL_40| input size 376 context size 376 output size 376 [2022-11-03 02:22:53,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [811808218] [2022-11-03 02:22:53,791 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-03 02:22:53,793 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:53,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:53,794 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:53,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:53,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:22:53,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:22:53,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:53,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:53,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:53,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:54,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:54,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:54,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 02:22:54,262 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-03 02:22:54,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2022-11-03 02:22:54,302 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 02:22:54,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 31 [2022-11-03 02:22:54,334 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-03 02:22:54,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2022-11-03 02:22:54,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:54,462 INFO L356 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-03 02:22:54,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-03 02:22:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:54,576 INFO L356 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-03 02:22:54,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-03 02:22:54,625 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:54,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:54,647 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:54,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:54,709 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:54,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:54,749 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:54,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-03 02:22:54,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:54,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:54,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:54,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:54,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:54,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:54,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:54,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:54,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:22:54,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:54,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:22:55,035 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 93 for LOIs [2022-11-03 02:22:56,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 02:22:56,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:56,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:22:56,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:56,864 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:56,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:56,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:56,886 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:56,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:56,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:56,926 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:56,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:56,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:56,946 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:56,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 02:22:57,415 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 44 for LOIs [2022-11-03 02:22:57,479 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 31 for LOIs [2022-11-03 02:22:57,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:22:57,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:22:57,515 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 21 for LOIs [2022-11-03 02:22:57,578 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:23:10,546 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3403#(and (= |ULTIMATE.start_mutex_unlock_#in~m#1.base| |ULTIMATE.start_foo_~m1~0#1.base|) (< |ULTIMATE.start_foo_~m1~0#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_mutex_unlock_#in~m#1.base| |ULTIMATE.start_mutex_unlock_~m#1.base|) (= |~#mutexes~0.base| 3) (not (= (ite (not (= |ULTIMATE.start_foo_~m1~0#1.base| 0)) 1 0) 0)) (= |~#mutexes~0.offset| 0) (< |ULTIMATE.start_foo_~m2~0#1.base| |#StackHeapBarrier|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_mutex_unlock_~m#1.offset| 0) (<= 0 |ULTIMATE.start_mutex_unlock_~m#1.offset|) (not (= |ULTIMATE.start_foo_~m2~0#1.base| 0)) (= |ULTIMATE.start_foo_~m1~0#1.offset| |ULTIMATE.start_mutex_unlock_#in~m#1.offset|) (= |ULTIMATE.start_foo_~m2~0#1.offset| 0) (= |ULTIMATE.start_foo_~m1~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:23:10,547 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:23:10,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:23:10,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-11-03 02:23:10,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411543620] [2022-11-03 02:23:10,547 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-03 02:23:10,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-03 02:23:10,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:10,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-03 02:23:10,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=375, Invalid=5457, Unknown=20, NotChecked=0, Total=5852 [2022-11-03 02:23:10,551 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 32 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 26 states have internal predecessors, (46), 11 states have call successors, (13), 4 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-03 02:23:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:14,563 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2022-11-03 02:23:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-03 02:23:14,564 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 26 states have internal predecessors, (46), 11 states have call successors, (13), 4 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) Word has length 78 [2022-11-03 02:23:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:14,565 INFO L225 Difference]: With dead ends: 94 [2022-11-03 02:23:14,565 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 02:23:14,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 102 SyntacticMatches, 7 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3169 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=656, Invalid=10036, Unknown=20, NotChecked=0, Total=10712 [2022-11-03 02:23:14,569 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 185 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:14,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 340 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 02:23:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 02:23:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2022-11-03 02:23:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 50 states have (on average 1.1) internal successors, (55), 51 states have internal predecessors, (55), 13 states have call successors, (13), 8 states have call predecessors, (13), 9 states have return successors, (14), 14 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-03 02:23:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2022-11-03 02:23:14,583 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 78 [2022-11-03 02:23:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:14,584 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2022-11-03 02:23:14,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 26 states have internal predecessors, (46), 11 states have call successors, (13), 4 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-03 02:23:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2022-11-03 02:23:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 02:23:14,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:14,585 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:14,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:14,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:14,802 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:14,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:14,802 INFO L85 PathProgramCache]: Analyzing trace with hash -670027565, now seen corresponding path program 3 times [2022-11-03 02:23:14,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:14,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306659833] [2022-11-03 02:23:14,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:14,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:22,624 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 34 proven. 37 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 02:23:22,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:22,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306659833] [2022-11-03 02:23:22,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306659833] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:23:22,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467718365] [2022-11-03 02:23:22,625 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:23:22,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:22,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:22,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:22,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_957209d1-7c46-4d1a-ab7f-44d37a181779/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:23:23,219 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:23:23,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:23:23,231 WARN L261 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 424 conjunts are in the unsatisfiable core [2022-11-03 02:23:23,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:23,551 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:23:23,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 02:23:23,866 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:23:23,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-03 02:23:24,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:23:25,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:25,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 02:23:25,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:23:26,186 INFO L356 Elim1Store]: treesize reduction 95, result has 34.5 percent of original size [2022-11-03 02:23:26,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 882 treesize of output 403 [2022-11-03 02:23:26,381 INFO L356 Elim1Store]: treesize reduction 40, result has 57.4 percent of original size [2022-11-03 02:23:26,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 330 [2022-11-03 02:23:26,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 232 [2022-11-03 02:23:26,625 INFO L356 Elim1Store]: treesize reduction 228, result has 21.6 percent of original size [2022-11-03 02:23:26,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 276 treesize of output 331 [2022-11-03 02:23:26,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:23:26,887 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:23:26,915 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:23:27,039 INFO L356 Elim1Store]: treesize reduction 36, result has 60.0 percent of original size [2022-11-03 02:23:27,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 131 [2022-11-03 02:23:27,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:23:27,524 INFO L356 Elim1Store]: treesize reduction 112, result has 30.9 percent of original size [2022-11-03 02:23:27,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 200 treesize of output 324 [2022-11-03 02:23:28,089 INFO L356 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2022-11-03 02:23:28,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 45 [2022-11-03 02:23:28,219 INFO L356 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2022-11-03 02:23:28,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 45 [2022-11-03 02:23:28,330 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-03 02:23:28,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 10 [2022-11-03 02:23:28,452 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-03 02:23:28,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 10 [2022-11-03 02:23:28,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:23:28,984 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:23:28,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 68 [2022-11-03 02:23:29,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 96 [2022-11-03 02:23:29,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 133 [2022-11-03 02:23:29,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:23:29,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 11 [2022-11-03 02:23:29,585 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 02:23:29,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 102 [2022-11-03 02:23:29,663 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-03 02:23:29,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 3 [2022-11-03 02:23:29,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 96 [2022-11-03 02:23:29,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 133 [2022-11-03 02:23:29,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 9 [2022-11-03 02:23:29,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 02:23:33,270 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse105 (select |c_old(#memory_$Pointer$.base)| |c_~#mutexes~0.base|))) (and (exists ((|v_mutex_lock_ldv_list_add_~new#1.base_BEFORE_CALL_19| Int)) (= (select |c_#valid| |v_mutex_lock_ldv_list_add_~new#1.base_BEFORE_CALL_19|) 1)) (= |c_~#mutexes~0.offset| 0) (let ((.cse104 (store .cse105 0 |c_mutex_lock_#in~m#1.base|))) (let ((.cse10 (select .cse104 |c_~#mutexes~0.offset|))) (let ((.cse14 (select |c_#memory_$Pointer$.offset| .cse10))) (let ((.cse81 (select .cse14 0)) (.cse11 (store |c_old(#memory_$Pointer$.base)| |c_~#mutexes~0.base| .cse104))) (let ((.cse29 (= .cse10 |c_~#mutexes~0.base|)) (.cse70 (= |c_mutex_lock_#in~m#1.offset| 4)) (.cse12 (select .cse11 .cse10)) (.cse13 (= |c_mutex_lock_#in~m#1.offset| .cse81)) (.cse15 (= |c_#valid| (store |c_old(#valid)| |c_~#mutexes~0.base| 1))) (.cse4 (= (select (select |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) 4))) (or (and (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_DerPreprocessor_19 (Array Int Int)) (__ldv_list_add_~next.offset Int) (v_ArrVal_1027 Int)) (and (= (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse2 (select (select .cse3 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse0 (store .cse3 .cse2 (store (select .cse3 .cse2) (+ __ldv_list_add_~next.offset 4) |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse1 (select .cse0 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse0 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse1 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse0 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse1 4 .cse2) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))))) |c_#memory_$Pointer$.base|) (= |c_mutex_lock_#in~m#1.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base| v_DerPreprocessor_19) |mutex_lock_ldv_list_add_~new#1.base|) 0)) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (not (= |mutex_lock_ldv_list_add_~new#1.base| |c_~#mutexes~0.base|)) (= (select v_DerPreprocessor_19 |c_~#mutexes~0.offset|) 4))) .cse4) (and (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (v_DerPreprocessor_19 (Array Int Int)) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_ArrVal_1027 Int)) (and (= |c_#memory_$Pointer$.base| (let ((.cse8 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse7 (select (select .cse8 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse5 (store .cse8 .cse7 (store (select .cse8 .cse7) 4 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse6 (select .cse5 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse5 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse6 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse5 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse6 4 .cse7) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|))))))) (= |c_mutex_lock_#in~m#1.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base| v_DerPreprocessor_19) |mutex_lock_ldv_list_add_~new#1.base|) 0)) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (not (= |mutex_lock_ldv_list_add_~new#1.base| |c_~#mutexes~0.base|)) (= (select v_DerPreprocessor_19 |c_~#mutexes~0.offset|) 4))) .cse4) (and .cse4 (or (and (exists ((v_ArrVal_1020 Int)) (= (let ((.cse9 (store .cse11 .cse10 (store .cse12 8 |c_~#mutexes~0.base|)))) (store .cse9 |c_~#mutexes~0.base| (store (store (store (select .cse9 |c_~#mutexes~0.base|) 4 .cse10) 8 v_ArrVal_1020) |c_~#mutexes~0.offset| |c_~#mutexes~0.base|))) |c_#memory_$Pointer$.base|)) .cse13 (= (select .cse14 8) 4) .cse15) (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_ArrVal_1027 Int)) (let ((.cse19 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse18 (select (select .cse19 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (and (= |c_#memory_$Pointer$.base| (let ((.cse16 (store .cse19 .cse18 (store (select .cse19 .cse18) 8 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse17 (select .cse16 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse16 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse17 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse16 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse17 4 .cse18) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|))))) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (= |mutex_lock_ldv_list_add_~new#1.base| .cse18))))) (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_ArrVal_1027 Int)) (let ((.cse24 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse23 (select (select .cse24 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse20 (select |c_#memory_$Pointer$.offset| .cse23)) (.cse25 (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|))) (and (= (select .cse20 8) 4) (= |c_#memory_$Pointer$.base| (let ((.cse21 (store .cse24 .cse23 (store (select .cse24 .cse23) 8 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse22 (select .cse21 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse21 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse22 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse21 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse22 4 .cse23) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|))))) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (exists ((v_DerPreprocessor_24 Int) (v_DerPreprocessor_23 Int)) (= (store (store (store .cse20 8 v_DerPreprocessor_23) 4 v_DerPreprocessor_24) 8 v_DerPreprocessor_23) (store (store (store (store (store .cse25 8 v_DerPreprocessor_23) 4 v_DerPreprocessor_24) 8 v_DerPreprocessor_23) 4 v_DerPreprocessor_24) 8 v_DerPreprocessor_23))) (= |c_mutex_lock_#in~m#1.offset| (select .cse25 0))))))))) (and (exists ((v_ArrVal_1020 Int) (__ldv_list_add_~next.offset Int) (v_DerPreprocessor_49 Int) (v_DerPreprocessor_50 Int) (v_DerPreprocessor_51 Int)) (let ((.cse27 (+ __ldv_list_add_~next.offset 4))) (let ((.cse28 (store .cse14 .cse27 v_DerPreprocessor_49))) (and (= |c_#memory_$Pointer$.base| (let ((.cse26 (store .cse11 .cse10 (store .cse12 .cse27 |c_~#mutexes~0.base|)))) (store .cse26 |c_~#mutexes~0.base| (store (store (store (select .cse26 |c_~#mutexes~0.base|) 4 .cse10) 8 v_ArrVal_1020) |c_~#mutexes~0.offset| |c_~#mutexes~0.base|)))) (= (select .cse14 .cse27) 4) (= v_DerPreprocessor_49 (select (store (store .cse28 4 v_DerPreprocessor_50) 8 v_DerPreprocessor_51) .cse27)) (= |c_mutex_lock_#in~m#1.offset| (select .cse28 0)))))) (not .cse29) .cse4 .cse15) (and .cse4 (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (__ldv_list_add_~next.offset Int) (v_ArrVal_1027 Int)) (let ((.cse33 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse34 (+ __ldv_list_add_~next.offset 4)) (.cse32 (select (select .cse33 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (and (= (let ((.cse30 (store .cse33 .cse32 (store (select .cse33 .cse32) .cse34 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse31 (select .cse30 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse30 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse31 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse30 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse31 4 .cse32) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))) |c_#memory_$Pointer$.base|) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (= 4 (select (select |c_#memory_$Pointer$.offset| .cse32) .cse34)) (not (= |c_~#mutexes~0.base| .cse32))))))) (and (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (__ldv_list_add_~next.offset Int) (v_ArrVal_1027 Int)) (let ((.cse38 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse37 (select (select .cse38 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse39 (+ __ldv_list_add_~next.offset 4))) (and (= (let ((.cse35 (store .cse38 .cse37 (store (select .cse38 .cse37) .cse39 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse36 (select .cse35 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse35 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse36 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse35 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse36 4 .cse37) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))) |c_#memory_$Pointer$.base|) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (not (= |mutex_lock_ldv_list_add_~new#1.base| |c_~#mutexes~0.base|)) (= 4 (select (select |c_#memory_$Pointer$.offset| .cse37) .cse39)) (= |c_mutex_lock_#in~m#1.offset| (select (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|) 0)))))) .cse4) (and (or (exists ((|mutex_lock_ldv_list_add_~new#1.base| Int)) (let ((.cse45 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse44 (select (select .cse45 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse41 (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|)) (.cse40 (select |c_#memory_$Pointer$.offset| .cse44))) (and (exists ((v_DerPreprocessor_31 Int)) (= (store (store .cse40 4 4) 8 v_DerPreprocessor_31) (store (store (store (store .cse41 4 4) 8 v_DerPreprocessor_31) 4 4) 8 v_DerPreprocessor_31))) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (v_ArrVal_1027 Int)) (= |c_#memory_$Pointer$.base| (let ((.cse42 (store .cse45 .cse44 (store (select .cse45 .cse44) 4 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse43 (select .cse42 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse42 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse43 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse42 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse43 4 .cse44) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))))) (= |c_mutex_lock_#in~m#1.offset| (select .cse41 0)) (= (select .cse40 4) 4)))))) (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_ArrVal_1027 Int)) (let ((.cse49 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse48 (select (select .cse49 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (and (= (let ((.cse46 (store .cse49 .cse48 (store (select .cse49 .cse48) 0 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse47 (select .cse46 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse46 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse47 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse46 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse47 4 .cse48) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))) |c_#memory_$Pointer$.base|) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (= |mutex_lock_ldv_list_add_~new#1.base| .cse48))))) (exists ((|mutex_lock_ldv_list_add_~new#1.base| Int)) (let ((.cse53 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse52 (select (select .cse53 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (and (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (__ldv_list_add_~next.offset Int) (v_ArrVal_1027 Int)) (= (let ((.cse50 (store .cse53 .cse52 (store (select .cse53 .cse52) (+ __ldv_list_add_~next.offset 4) |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse51 (select .cse50 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse50 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse51 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse50 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse51 4 .cse52) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))) |c_#memory_$Pointer$.base|)) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (= |mutex_lock_ldv_list_add_~new#1.base| .cse52))))) (exists ((|mutex_lock_ldv_list_add_~new#1.base| Int)) (let ((.cse59 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse58 (select (select .cse59 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse55 (select |c_#memory_$Pointer$.offset| .cse58)) (.cse54 (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|))) (and (exists ((v_DerPreprocessor_30 Int)) (= (store (store (store (store (store .cse54 8 4) 4 v_DerPreprocessor_30) 8 4) 4 v_DerPreprocessor_30) 8 4) (store (store (store .cse55 8 4) 4 v_DerPreprocessor_30) 8 4))) (= (select .cse55 8) 4) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (v_ArrVal_1027 Int)) (= |c_#memory_$Pointer$.base| (let ((.cse56 (store .cse59 .cse58 (store (select .cse59 .cse58) 8 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse57 (select .cse56 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse56 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse57 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse56 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse57 4 .cse58) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))))) (= |c_mutex_lock_#in~m#1.offset| (select .cse54 0))))))) (exists ((|mutex_lock_ldv_list_add_~new#1.base| Int)) (and (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (v_DerPreprocessor_29 Int) (__ldv_list_add_~next.offset Int) (v_ArrVal_1027 Int) (v_DerPreprocessor_31 Int) (v_DerPreprocessor_30 Int)) (let ((.cse69 (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|)) (.cse62 (+ __ldv_list_add_~next.offset 4))) (let ((.cse67 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|))) (.cse68 (store (store (store (store .cse69 .cse62 v_DerPreprocessor_29) 4 v_DerPreprocessor_30) 8 v_DerPreprocessor_31) .cse62 v_DerPreprocessor_29))) (let ((.cse60 (store (store .cse68 4 v_DerPreprocessor_30) 8 v_DerPreprocessor_31)) (.cse66 (select (select .cse67 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse61 (select |c_#memory_$Pointer$.offset| .cse66)) (.cse63 (select .cse60 .cse62))) (and (= .cse60 (store (store (store .cse61 .cse62 .cse63) 4 v_DerPreprocessor_30) 8 v_DerPreprocessor_31)) (= .cse63 4) (= (let ((.cse64 (store .cse67 .cse66 (store (select .cse67 .cse66) .cse62 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse65 (select .cse64 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse64 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse65 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse64 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse65 4 .cse66) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))) |c_#memory_$Pointer$.base|) (= |c_mutex_lock_#in~m#1.offset| (select .cse68 0)) (= 4 (select .cse61 .cse62)) (= v_DerPreprocessor_29 .cse63) (= (select .cse69 .cse62) 4))))))) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)))) (and .cse70 (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_ArrVal_1027 Int) (v_DerPreprocessor_31 Int) (v_DerPreprocessor_30 Int)) (let ((.cse74 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse73 (select (select .cse74 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse75 (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|)) (.cse76 (select |c_#memory_$Pointer$.offset| .cse73))) (and (= (let ((.cse71 (store .cse74 .cse73 (store (select .cse74 .cse73) 0 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse72 (select .cse71 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse71 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse72 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse71 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse72 4 .cse73) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))) |c_#memory_$Pointer$.base|) (= (select .cse75 0) 4) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (= (store (store (store .cse76 0 4) 4 v_DerPreprocessor_30) 8 v_DerPreprocessor_31) (store (store (store (store (store (store .cse75 0 4) 4 v_DerPreprocessor_30) 8 v_DerPreprocessor_31) 0 4) 4 v_DerPreprocessor_30) 8 v_DerPreprocessor_31)) (= (select .cse76 0) 4))))))) (and (or (exists ((v_ArrVal_1020 Int) (__ldv_list_add_~next.offset Int)) (let ((.cse78 (+ __ldv_list_add_~next.offset 4))) (and (= |c_#memory_$Pointer$.base| (let ((.cse77 (store .cse11 .cse10 (store .cse12 .cse78 |c_~#mutexes~0.base|)))) (store .cse77 |c_~#mutexes~0.base| (store (store (store (select .cse77 |c_~#mutexes~0.base|) 4 .cse10) 8 v_ArrVal_1020) |c_~#mutexes~0.offset| |c_~#mutexes~0.base|)))) (exists ((v_DerPreprocessor_33 Int) (v_DerPreprocessor_34 Int) (v_DerPreprocessor_32 Int)) (let ((.cse80 (store .cse14 .cse78 v_DerPreprocessor_32))) (let ((.cse79 (select (store (store .cse80 4 v_DerPreprocessor_33) 8 v_DerPreprocessor_34) .cse78))) (and (= v_DerPreprocessor_32 .cse79) (= .cse79 4) (= |c_mutex_lock_#in~m#1.offset| (select .cse80 0)))))) (= (select .cse14 .cse78) 4)))) (and (= .cse81 4) (or .cse29 .cse70) (exists ((v_ArrVal_1020 Int)) (= (let ((.cse82 (store .cse11 .cse10 (store .cse12 0 |c_~#mutexes~0.base|)))) (store .cse82 |c_~#mutexes~0.base| (store (store (store (select .cse82 |c_~#mutexes~0.base|) 4 .cse10) 8 v_ArrVal_1020) |c_~#mutexes~0.offset| |c_~#mutexes~0.base|))) |c_#memory_$Pointer$.base|)))) .cse15)) .cse4) (and .cse4 (or (and .cse70 (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_DerPreprocessor_19 (Array Int Int)) (v_ArrVal_1027 Int)) (and (= (let ((.cse86 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse85 (select (select .cse86 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse83 (store .cse86 .cse85 (store (select .cse86 .cse85) 0 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse84 (select .cse83 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse83 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse84 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse83 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse84 4 .cse85) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))))) |c_#memory_$Pointer$.base|) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (not (= |mutex_lock_ldv_list_add_~new#1.base| |c_~#mutexes~0.base|)) (= (select v_DerPreprocessor_19 |c_~#mutexes~0.offset|) 4) (= (select (select (store |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base| v_DerPreprocessor_19) |mutex_lock_ldv_list_add_~new#1.base|) 0) 4)))) (exists ((|mutex_lock_ldv_list_add_~new#1.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (not (= |mutex_lock_ldv_list_add_~new#1.base| |c_~#mutexes~0.base|)) (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (__ldv_list_add_~next.offset Int) (v_ArrVal_1027 Int)) (let ((.cse91 (+ __ldv_list_add_~next.offset 4))) (and (= (let ((.cse90 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse89 (select (select .cse90 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse87 (store .cse90 .cse89 (store (select .cse90 .cse89) .cse91 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse88 (select .cse87 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse87 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse88 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse87 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse88 4 .cse89) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|)))))) |c_#memory_$Pointer$.base|) (exists ((v_DerPreprocessor_19 (Array Int Int))) (let ((.cse92 (select (store |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base| v_DerPreprocessor_19) |mutex_lock_ldv_list_add_~new#1.base|))) (and (= |c_mutex_lock_#in~m#1.offset| (select .cse92 0)) (= 4 (select .cse92 .cse91)) (= (select v_DerPreprocessor_19 |c_~#mutexes~0.offset|) 4))))))))))) (and (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_DerPreprocessor_19 (Array Int Int)) (v_ArrVal_1027 Int)) (and (= |c_#memory_$Pointer$.base| (let ((.cse96 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse95 (select (select .cse96 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse93 (store .cse96 .cse95 (store (select .cse96 .cse95) 8 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse94 (select .cse93 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse93 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse94 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse93 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse94 4 .cse95) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|))))))) (= |c_mutex_lock_#in~m#1.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base| v_DerPreprocessor_19) |mutex_lock_ldv_list_add_~new#1.base|) 0)) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (not (= |mutex_lock_ldv_list_add_~new#1.base| |c_~#mutexes~0.base|)) (= (select v_DerPreprocessor_19 |c_~#mutexes~0.offset|) 4))) .cse4) (and (or (exists ((v_ArrVal_1040 Int) (v_ArrVal_1020 Int) (|mutex_lock_ldv_list_add_~new#1.base| Int) (v_ArrVal_1027 Int)) (let ((.cse102 (store |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base| (store (select |c_old(#memory_$Pointer$.base)| |mutex_lock_ldv_list_add_~new#1.base|) 0 |c_mutex_lock_#in~m#1.base|)))) (let ((.cse101 (select (select .cse102 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse98 (select |c_#memory_$Pointer$.offset| |mutex_lock_ldv_list_add_~new#1.base|)) (.cse97 (select |c_#memory_$Pointer$.offset| .cse101))) (and (exists ((v_DerPreprocessor_43 Int) (v_DerPreprocessor_41 Int)) (= (store (store .cse97 4 v_DerPreprocessor_41) 8 v_DerPreprocessor_43) (store (store (store (store .cse98 4 v_DerPreprocessor_41) 8 v_DerPreprocessor_43) 4 v_DerPreprocessor_41) 8 v_DerPreprocessor_43))) (= |c_#memory_$Pointer$.base| (let ((.cse99 (store .cse102 .cse101 (store (select .cse102 .cse101) 4 |mutex_lock_ldv_list_add_~new#1.base|)))) (let ((.cse100 (select .cse99 |mutex_lock_ldv_list_add_~new#1.base|))) (store (store .cse99 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse100 4 v_ArrVal_1040) 8 v_ArrVal_1027)) |c_~#mutexes~0.base| (store (select (store .cse99 |mutex_lock_ldv_list_add_~new#1.base| (store (store .cse100 4 .cse101) 8 v_ArrVal_1020)) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |mutex_lock_ldv_list_add_~new#1.base|))))) (= |c_#valid| (store |c_old(#valid)| |mutex_lock_ldv_list_add_~new#1.base| 1)) (= |c_mutex_lock_#in~m#1.offset| (select .cse98 0)) (= (select .cse97 4) 4)))))) (and (exists ((v_ArrVal_1020 Int)) (= |c_#memory_$Pointer$.base| (let ((.cse103 (store .cse11 .cse10 (store .cse12 4 |c_~#mutexes~0.base|)))) (store .cse103 |c_~#mutexes~0.base| (store (store (store (select .cse103 |c_~#mutexes~0.base|) 4 .cse10) 8 v_ArrVal_1020) |c_~#mutexes~0.offset| |c_~#mutexes~0.base|))))) .cse13 (= (select .cse14 4) 4) .cse15)) .cse4))))))) (= (select .cse105 |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|) (= 3 |c_~#mutexes~0.base|))) is different from false [2022-11-03 02:23:35,715 INFO L173 IndexEqualityManager]: detected equality via solver