./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs --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 --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:27,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:27,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:27,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:27,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:27,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:27,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:27,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:27,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:27,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:27,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:27,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:27,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:27,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:27,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:27,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:27,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:27,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:27,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:27,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:27,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:27,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:27,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:27,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:27,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:27,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:27,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:27,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:27,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:27,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:27,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:27,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:27,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:27,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:27,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:27,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:27,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:27,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:27,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:27,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:27,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:27,169 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:39:27,202 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:27,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:27,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:27,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:27,206 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:27,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:27,208 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:27,209 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:39:27,209 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:27,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:27,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:39:27,211 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:39:27,211 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:27,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:39:27,212 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:39:27,212 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:39:27,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:27,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:39:27,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:39:27,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:39:27,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:27,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:39:27,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:27,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:39:27,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:27,216 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:39:27,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:39:27,216 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:27,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:39:27,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:27,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:27,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:27,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:27,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:27,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:39:27,221 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:39:27,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:39:27,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:39:27,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:27,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:27,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2021-11-19 14:39:27,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:27,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:27,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:27,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:27,612 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:27,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-11-19 14:39:27,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/6b56133fa/507dbdf4dacc45e8a331ee6f854199d7/FLAGca50539b4 [2021-11-19 14:39:28,357 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:28,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-11-19 14:39:28,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/6b56133fa/507dbdf4dacc45e8a331ee6f854199d7/FLAGca50539b4 [2021-11-19 14:39:28,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/6b56133fa/507dbdf4dacc45e8a331ee6f854199d7 [2021-11-19 14:39:28,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:28,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:28,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:28,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:28,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:28,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:28" (1/1) ... [2021-11-19 14:39:28,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760f63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:28, skipping insertion in model container [2021-11-19 14:39:28,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:28" (1/1) ... [2021-11-19 14:39:28,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:28,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:29,305 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-11-19 14:39:29,317 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-11-19 14:39:29,319 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-11-19 14:39:29,331 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:29,347 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:39:29,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53e6728b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:29, skipping insertion in model container [2021-11-19 14:39:29,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:29,348 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:39:29,352 INFO L158 Benchmark]: Toolchain (without parser) took 719.63ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 84.3MB in the end (delta: -15.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-19 14:39:29,354 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:39:29,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.89ms. Allocated memory is still 113.2MB. Free memory was 68.7MB in the beginning and 84.3MB in the end (delta: -15.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-19 14:39:29,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.89ms. Allocated memory is still 113.2MB. Free memory was 68.7MB in the beginning and 84.3MB in the end (delta: -15.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 638]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs --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 --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:32,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:32,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:32,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:32,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:32,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:32,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:32,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:32,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:32,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:32,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:32,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:32,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:32,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:32,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:32,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:32,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:32,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:32,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:32,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:32,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:32,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:32,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:32,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:32,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:32,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:32,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:32,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:32,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:32,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:32,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:32,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:32,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:32,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:32,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:32,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:32,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:32,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:32,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:32,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:32,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:32,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:39:32,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:32,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:32,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:32,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:32,219 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:32,219 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:32,220 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:32,220 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:32,220 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:32,220 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:32,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:32,221 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:39:32,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:39:32,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:32,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:39:32,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:32,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:39:32,223 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:32,223 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:39:32,223 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:39:32,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:39:32,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:39:32,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:32,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:39:32,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:32,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:39:32,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:32,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:32,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:32,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:32,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:39:32,226 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:39:32,230 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:39:32,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:39:32,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:32,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:32,231 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2021-11-19 14:39:32,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:32,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:32,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:32,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:32,791 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:32,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-11-19 14:39:32,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/b22797987/737049fcf933421a8607932d0c03808d/FLAGfe7f2f6aa [2021-11-19 14:39:33,700 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:33,702 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-11-19 14:39:33,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/b22797987/737049fcf933421a8607932d0c03808d/FLAGfe7f2f6aa [2021-11-19 14:39:33,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/data/b22797987/737049fcf933421a8607932d0c03808d [2021-11-19 14:39:33,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:33,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:33,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:33,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:33,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:33,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:33" (1/1) ... [2021-11-19 14:39:33,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cc9981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:33, skipping insertion in model container [2021-11-19 14:39:33,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:33" (1/1) ... [2021-11-19 14:39:33,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:33,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:34,585 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-11-19 14:39:34,596 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-11-19 14:39:34,600 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-11-19 14:39:34,607 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:34,637 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:39:34,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:34,691 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-11-19 14:39:34,696 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-11-19 14:39:34,699 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-11-19 14:39:34,702 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:34,708 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:39:34,809 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-11-19 14:39:34,817 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-11-19 14:39:34,818 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_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-11-19 14:39:34,820 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:34,864 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:39:34,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34 WrapperNode [2021-11-19 14:39:34,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:34,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:34,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:39:34,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:39:34,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,935 INFO L137 Inliner]: procedures = 141, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 123 [2021-11-19 14:39:34,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:34,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:39:34,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:39:34,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:39:34,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:35,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:35,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:35,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:35,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:39:35,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:39:35,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:39:35,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:39:35,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:35,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:35,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:39:35,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:39:35,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:39:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-19 14:39:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-19 14:39:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:39:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-19 14:39:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-19 14:39:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:39:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:39:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:39:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2021-11-19 14:39:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2021-11-19 14:39:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:39:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:39:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:39:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:39:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2021-11-19 14:39:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2021-11-19 14:39:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:39:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:39:35,333 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:39:35,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:39:35,974 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:39:35,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:39:35,990 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:39:35,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:35 BoogieIcfgContainer [2021-11-19 14:39:35,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:39:35,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:39:36,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:39:36,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:39:36,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:39:33" (1/3) ... [2021-11-19 14:39:36,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4249ebb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:36, skipping insertion in model container [2021-11-19 14:39:36,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34" (2/3) ... [2021-11-19 14:39:36,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4249ebb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:36, skipping insertion in model container [2021-11-19 14:39:36,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:35" (3/3) ... [2021-11-19 14:39:36,010 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2021-11-19 14:39:36,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:39:36,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:39:36,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:39:36,090 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:39:36,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:39:36,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 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) [2021-11-19 14:39:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:39:36,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:36,126 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:36,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:36,147 INFO L85 PathProgramCache]: Analyzing trace with hash 639043166, now seen corresponding path program 1 times [2021-11-19 14:39:36,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:36,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34890863] [2021-11-19 14:39:36,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:36,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:36,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:36,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:39:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:36,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:39:36,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 14:39:36,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:39:36,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:36,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34890863] [2021-11-19 14:39:36,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34890863] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:39:36,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:39:36,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:39:36,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458834281] [2021-11-19 14:39:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:36,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:39:36,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:36,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:39:36,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:39:36,754 INFO L87 Difference]: Start difference. First operand has 63 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 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 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:39:36,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:36,807 INFO L93 Difference]: Finished difference Result 122 states and 159 transitions. [2021-11-19 14:39:36,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:39:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2021-11-19 14:39:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:36,824 INFO L225 Difference]: With dead ends: 122 [2021-11-19 14:39:36,824 INFO L226 Difference]: Without dead ends: 58 [2021-11-19 14:39:36,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:39:36,837 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:36,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:39:36,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-19 14:39:36,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-19 14:39:36,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 44 states have internal predecessors, (49), 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) [2021-11-19 14:39:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-11-19 14:39:36,921 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 27 [2021-11-19 14:39:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:36,922 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-11-19 14:39:36,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:39:36,922 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2021-11-19 14:39:36,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:39:36,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:36,927 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:36,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:37,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:37,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:37,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:37,145 INFO L85 PathProgramCache]: Analyzing trace with hash -708257304, now seen corresponding path program 1 times [2021-11-19 14:39:37,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:37,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899303721] [2021-11-19 14:39:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:37,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:37,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:37,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:37,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:39:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:37,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:37,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:39:37,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:39:37,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:37,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899303721] [2021-11-19 14:39:37,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899303721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:37,548 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:37,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:39:37,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032690747] [2021-11-19 14:39:37,549 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:37,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:37,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:37,555 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-19 14:39:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:37,603 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2021-11-19 14:39:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:37,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 27 [2021-11-19 14:39:37,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:37,612 INFO L225 Difference]: With dead ends: 63 [2021-11-19 14:39:37,612 INFO L226 Difference]: Without dead ends: 61 [2021-11-19 14:39:37,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:37,615 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:37,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 195 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:39:37,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-19 14:39:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-19 14:39:37,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 46 states have internal predecessors, (51), 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) [2021-11-19 14:39:37,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2021-11-19 14:39:37,654 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 27 [2021-11-19 14:39:37,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:37,654 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2021-11-19 14:39:37,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-19 14:39:37,655 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2021-11-19 14:39:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:39:37,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:37,657 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:37,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:37,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:37,871 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:37,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:37,871 INFO L85 PathProgramCache]: Analyzing trace with hash -657463649, now seen corresponding path program 1 times [2021-11-19 14:39:37,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:37,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020247760] [2021-11-19 14:39:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:37,872 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:37,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:37,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:39:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:38,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:39:38,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:39:38,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:39:39,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:39,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020247760] [2021-11-19 14:39:39,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020247760] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:39,460 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:39,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2021-11-19 14:39:39,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930150422] [2021-11-19 14:39:39,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:39,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:39:39,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:39,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:39:39,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:39:39,463 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-19 14:39:40,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:40,966 INFO L93 Difference]: Finished difference Result 191 states and 237 transitions. [2021-11-19 14:39:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:39:40,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2021-11-19 14:39:40,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:40,971 INFO L225 Difference]: With dead ends: 191 [2021-11-19 14:39:40,971 INFO L226 Difference]: Without dead ends: 138 [2021-11-19 14:39:40,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:39:40,974 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 128 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:40,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 277 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 14:39:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-19 14:39:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 101. [2021-11-19 14:39:40,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 77 states have internal predecessors, (85), 15 states have call successors, (15), 7 states have call predecessors, (15), 11 states have return successors, (27), 16 states have call predecessors, (27), 15 states have call successors, (27) [2021-11-19 14:39:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2021-11-19 14:39:40,998 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 27 [2021-11-19 14:39:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:40,999 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2021-11-19 14:39:41,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-19 14:39:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2021-11-19 14:39:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 14:39:41,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:41,004 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2021-11-19 14:39:41,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:41,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:41,219 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:41,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:41,219 INFO L85 PathProgramCache]: Analyzing trace with hash -434916829, now seen corresponding path program 1 times [2021-11-19 14:39:41,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:41,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385626536] [2021-11-19 14:39:41,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:41,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:41,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:41,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:41,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:39:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:41,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:41,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-19 14:39:41,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-19 14:39:41,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:41,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385626536] [2021-11-19 14:39:41,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385626536] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:39:41,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:39:41,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-19 14:39:41,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243504718] [2021-11-19 14:39:41,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:41,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:41,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:41,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:41,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:41,852 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-19 14:39:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:41,880 INFO L93 Difference]: Finished difference Result 179 states and 221 transitions. [2021-11-19 14:39:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 66 [2021-11-19 14:39:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:41,895 INFO L225 Difference]: With dead ends: 179 [2021-11-19 14:39:41,895 INFO L226 Difference]: Without dead ends: 106 [2021-11-19 14:39:41,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:41,898 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:41,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:39:41,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-19 14:39:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2021-11-19 14:39:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 79 states have internal predecessors, (88), 15 states have call successors, (15), 7 states have call predecessors, (15), 12 states have return successors, (28), 18 states have call predecessors, (28), 15 states have call successors, (28) [2021-11-19 14:39:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 131 transitions. [2021-11-19 14:39:41,923 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 131 transitions. Word has length 66 [2021-11-19 14:39:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:41,924 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 131 transitions. [2021-11-19 14:39:41,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-19 14:39:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 131 transitions. [2021-11-19 14:39:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 14:39:41,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:41,929 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 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] [2021-11-19 14:39:41,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:42,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:42,139 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:42,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1442806133, now seen corresponding path program 1 times [2021-11-19 14:39:42,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:42,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993755394] [2021-11-19 14:39:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:42,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:42,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:42,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:42,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:39:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:42,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 14:39:42,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:42,662 INFO L388 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 [2021-11-19 14:39:42,671 INFO L388 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 [2021-11-19 14:39:43,274 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:39:43,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:44,249 INFO L388 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 8 treesize of output 4 [2021-11-19 14:39:44,263 INFO L388 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 8 treesize of output 4 [2021-11-19 14:39:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 14:39:44,786 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:44,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993755394] [2021-11-19 14:39:44,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993755394] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:39:44,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:39:44,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2021-11-19 14:39:44,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469854935] [2021-11-19 14:39:44,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:44,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:39:44,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:39:44,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:39:44,790 INFO L87 Difference]: Start difference. First operand 105 states and 131 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:39:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:46,802 INFO L93 Difference]: Finished difference Result 229 states and 282 transitions. [2021-11-19 14:39:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 14:39:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 66 [2021-11-19 14:39:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:46,807 INFO L225 Difference]: With dead ends: 229 [2021-11-19 14:39:46,807 INFO L226 Difference]: Without dead ends: 120 [2021-11-19 14:39:46,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:39:46,811 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 180 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:46,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 234 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 14:39:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-19 14:39:46,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 99. [2021-11-19 14:39:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 76 states have internal predecessors, (82), 13 states have call successors, (13), 8 states have call predecessors, (13), 11 states have return successors, (21), 14 states have call predecessors, (21), 13 states have call successors, (21) [2021-11-19 14:39:46,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 116 transitions. [2021-11-19 14:39:46,834 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 116 transitions. Word has length 66 [2021-11-19 14:39:46,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:46,835 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 116 transitions. [2021-11-19 14:39:46,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:39:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 116 transitions. [2021-11-19 14:39:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 14:39:46,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:46,839 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1] [2021-11-19 14:39:46,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:47,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:47,058 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:47,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:47,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1154879633, now seen corresponding path program 1 times [2021-11-19 14:39:47,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:47,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515898027] [2021-11-19 14:39:47,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:47,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:47,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:47,062 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:47,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b23e7bf-e968-4a8d-b6c5-accfd0fda5bd/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:39:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:47,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-19 14:39:47,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:47,384 INFO L388 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 [2021-11-19 14:39:47,821 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-19 14:39:47,822 INFO L388 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 29 treesize of output 36 [2021-11-19 14:39:48,081 INFO L388 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 [2021-11-19 14:39:52,946 INFO L354 Elim1Store]: treesize reduction 166, result has 26.9 percent of original size [2021-11-19 14:39:52,947 INFO L388 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 3 case distinctions, treesize of input 155 treesize of output 145 [2021-11-19 14:40:02,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:40:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:40:02,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:40:02,772 INFO L354 Elim1Store]: treesize reduction 590, result has 8.8 percent of original size [2021-11-19 14:40:02,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 623 treesize of output 316 [2021-11-19 14:40:02,851 INFO L354 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2021-11-19 14:40:02,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 472 treesize of output 478 [2021-11-19 14:40:03,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:40:03,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:40:03,199 INFO L354 Elim1Store]: treesize reduction 126, result has 0.8 percent of original size [2021-11-19 14:40:03,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 148 treesize of output 47 [2021-11-19 14:40:03,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:40:03,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:40:03,538 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-19 14:40:03,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 228 treesize of output 144 [2021-11-19 14:40:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:40:21,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:53,171 WARN L860 $PredicateComparison]: unable to prove that (exists ((v___ldv_list_add_~next.offset_7 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_8| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_mutex_lock_ldv_list_add_~new#1.base_8|)))))) (= (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (bvadd (_ bv4294967292 32) (select (select |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (select (select (let ((.cse0 (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse2 (select (select .cse3 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse1 (store .cse3 .cse2 (store (select .cse3 .cse2) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_7) |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (store .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse1 |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv4 32) .cse2) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse0 |c_~#mutexes~0.base| (store (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|))) |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32))))) is different from true [2021-11-19 14:40:59,575 WARN L838 $PredicateComparison]: unable to prove that (forall ((v___ldv_list_add_~next.offset_10 (_ BitVec 32)) (|v_#memory_$Pointer$.offset_65| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))))) (exists ((v___ldv_list_add_~next.offset_7 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_8| (_ BitVec 32))) (and (= (let ((.cse3 (bvadd (_ bv4 32) |c_mutex_lock_ldv_list_add_~new#1.offset|)) (.cse4 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_10))) (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse4 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse2 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse2 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse3 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse1 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse1 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse0 (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse5 (let ((.cse6 (store |v_#memory_$Pointer$.offset_65| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |v_#memory_$Pointer$.offset_65| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse4 |c_mutex_lock_ldv_list_add_~new#1.offset|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| v___ldv_list_add_~next.offset_10) .cse3 |c_mutex_lock_ldv_list_add_~head#1.offset|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.offset|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (select (select (let ((.cse7 (let ((.cse10 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse9 (select (select .cse10 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse8 (store .cse10 .cse9 (store (select .cse10 .cse9) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_7) |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (store .cse8 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse8 |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv4 32) .cse9) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse7 |c_~#mutexes~0.base| (store (select .cse7 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|))) |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_mutex_lock_ldv_list_add_~new#1.base_8|))))))))) is different from false [2021-11-19 14:41:01,585 WARN L860 $PredicateComparison]: unable to prove that (forall ((v___ldv_list_add_~next.offset_10 (_ BitVec 32)) (|v_#memory_$Pointer$.offset_65| (Array (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))))) (exists ((v___ldv_list_add_~next.offset_7 (_ BitVec 32)) (|v_mutex_lock_ldv_list_add_~new#1.base_8| (_ BitVec 32))) (and (= (let ((.cse3 (bvadd (_ bv4 32) |c_mutex_lock_ldv_list_add_~new#1.offset|)) (.cse4 (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_10))) (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |c_#memory_$Pointer$.base| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse4 |c_mutex_lock_ldv_list_add_~new#1.base|)))) (store .cse2 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse2 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse3 |c_mutex_lock_ldv_list_add_~head#1.base|))))) (store .cse1 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse1 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.base|))))) (select .cse0 (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (bvadd (_ bv4294967292 32) (select (select (let ((.cse5 (let ((.cse6 (store |v_#memory_$Pointer$.offset_65| |c_mutex_lock_ldv_list_add_#t~mem6#1.base| (store (select |v_#memory_$Pointer$.offset_65| |c_mutex_lock_ldv_list_add_#t~mem6#1.base|) .cse4 |c_mutex_lock_ldv_list_add_~new#1.offset|)))) (store .cse6 |c_mutex_lock_ldv_list_add_~new#1.base| (store (store (select .cse6 |c_mutex_lock_ldv_list_add_~new#1.base|) |c_mutex_lock_ldv_list_add_~new#1.offset| v___ldv_list_add_~next.offset_10) .cse3 |c_mutex_lock_ldv_list_add_~head#1.offset|))))) (store .cse5 |c_mutex_lock_ldv_list_add_~head#1.base| (store (select .cse5 |c_mutex_lock_ldv_list_add_~head#1.base|) |c_mutex_lock_ldv_list_add_~head#1.offset| |c_mutex_lock_ldv_list_add_~new#1.offset|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (select (select (let ((.cse7 (let ((.cse10 (store |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_old(#memory_$Pointer$.base)| |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32) |c_mutex_lock_#in~m#1.base|)))) (let ((.cse9 (select (select .cse10 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (let ((.cse8 (store .cse10 .cse9 (store (select .cse10 .cse9) (bvadd (_ bv4 32) v___ldv_list_add_~next.offset_7) |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (store .cse8 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse8 |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv4 32) .cse9) (_ bv8 32) |c_~#mutexes~0.base|))))))) (store .cse7 |c_~#mutexes~0.base| (store (select .cse7 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|))) |v_mutex_lock_ldv_list_add_~new#1.base_8|) (_ bv0 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_mutex_lock_ldv_list_add_~new#1.base_8|))))))))) is different from true [2021-11-19 14:41:04,305 INFO L388 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 1326 treesize of output 1302 [2021-11-19 14:41:04,468 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,468 INFO L388 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 1302 treesize of output 1306 [2021-11-19 14:41:10,190 INFO L388 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 185617 treesize of output 185361