./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi004.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi004.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8 --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 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:44:47,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:44:47,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:44:47,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:44:47,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:44:47,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:44:47,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:44:47,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:44:47,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:44:47,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:44:47,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:44:47,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:44:47,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:44:47,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:44:47,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:44:47,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:44:47,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:44:47,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:44:47,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:44:47,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:44:47,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:44:47,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:44:47,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:44:47,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:44:47,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:44:47,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:44:47,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:44:47,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:44:47,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:44:47,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:44:47,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:44:47,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:44:47,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:44:47,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:44:47,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:44:47,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:44:47,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:44:47,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:44:47,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:44:47,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:44:47,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:44:47,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:44:47,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:44:47,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:44:47,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:44:47,901 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:44:47,902 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:44:47,902 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:44:47,902 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:44:47,902 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:44:47,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:44:47,902 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:44:47,903 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:44:47,904 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:44:47,904 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:44:47,904 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:44:47,904 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:44:47,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:44:47,905 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:44:47,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:44:47,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:44:47,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:44:47,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:44:47,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:44:47,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:44:47,907 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:44:47,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:44:47,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:44:47,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:44:47,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:44:47,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:44:47,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:44:47,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:44:47,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:44:47,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:44:47,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:44:47,910 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:44:47,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:44:47,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:44:47,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:44:47,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:44:47,911 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_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 [2021-11-07 01:44:48,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:44:48,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:44:48,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:44:48,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:44:48,223 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:44:48,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/pthread-wmm/rfi004.i [2021-11-07 01:44:48,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/data/3feb452f3/594c427ab9524015ab2b588816188d8b/FLAGed9dcf82d [2021-11-07 01:44:48,786 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:44:48,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/sv-benchmarks/c/pthread-wmm/rfi004.i [2021-11-07 01:44:48,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/data/3feb452f3/594c427ab9524015ab2b588816188d8b/FLAGed9dcf82d [2021-11-07 01:44:49,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/data/3feb452f3/594c427ab9524015ab2b588816188d8b [2021-11-07 01:44:49,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:44:49,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:44:49,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:44:49,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:44:49,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:44:49,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2564512e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49, skipping insertion in model container [2021-11-07 01:44:49,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:44:49,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:44:49,404 WARN L228 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_608d354d-1e73-4efc-aafe-d1a85ece809f/sv-benchmarks/c/pthread-wmm/rfi004.i[983,996] [2021-11-07 01:44:49,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:44:49,690 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:44:49,704 WARN L228 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_608d354d-1e73-4efc-aafe-d1a85ece809f/sv-benchmarks/c/pthread-wmm/rfi004.i[983,996] [2021-11-07 01:44:49,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:44:49,831 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:44:49,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49 WrapperNode [2021-11-07 01:44:49,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:44:49,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:44:49,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:44:49,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:44:49,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:44:49,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:44:49,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:44:49,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:44:49,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:49,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:44:49,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:44:49,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:44:49,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:44:49,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (1/1) ... [2021-11-07 01:44:50,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:44:50,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:44:50,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:44:50,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:44:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:44:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 01:44:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:44:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:44:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-07 01:44:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-07 01:44:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-07 01:44:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-07 01:44:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:44:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 01:44:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:44:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:44:50,092 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:44:51,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:44:51,617 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 01:44:51,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:51 BoogieIcfgContainer [2021-11-07 01:44:51,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:44:51,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:44:51,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:44:51,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:44:51,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:44:49" (1/3) ... [2021-11-07 01:44:51,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3d572f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:44:51, skipping insertion in model container [2021-11-07 01:44:51,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:49" (2/3) ... [2021-11-07 01:44:51,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3d572f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:44:51, skipping insertion in model container [2021-11-07 01:44:51,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:51" (3/3) ... [2021-11-07 01:44:51,629 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi004.i [2021-11-07 01:44:51,634 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:44:51,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:44:51,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 01:44:51,635 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:44:51,666 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,666 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,667 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,667 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,667 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,667 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,667 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,668 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,672 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,672 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,672 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,672 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,672 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,672 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,673 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,673 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,673 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,673 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,673 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,674 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,674 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,674 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,674 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,674 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,675 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,675 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,675 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,677 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,677 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,677 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,677 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,678 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,678 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,678 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,678 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,678 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,679 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,679 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,679 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,679 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,679 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,680 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,680 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,680 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,680 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,680 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,680 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,684 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,684 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,686 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,686 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,686 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,687 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,687 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,687 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,687 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,688 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,688 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,688 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,688 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,688 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,689 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,689 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,689 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,689 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,690 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,690 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,690 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,690 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,691 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,691 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,691 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,691 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,691 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,692 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,692 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,692 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,692 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,693 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,694 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,694 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,694 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,694 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,697 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,698 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,698 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,698 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,698 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,699 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,699 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,699 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,699 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,700 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,700 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,700 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,700 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,700 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,701 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,701 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,701 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,701 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,701 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,702 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,702 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,702 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,702 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,702 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,703 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,718 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,718 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,720 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,721 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,721 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,722 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,724 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,724 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,724 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,724 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,724 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:44:51,726 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-07 01:44:51,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:44:51,796 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 [2021-11-07 01:44:51,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 01:44:51,818 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:44:51,834 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 190 flow [2021-11-07 01:44:51,836 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 190 flow [2021-11-07 01:44:51,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2021-11-07 01:44:51,876 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2021-11-07 01:44:51,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 01:44:51,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-11-07 01:44:51,881 INFO L116 LiptonReduction]: Number of co-enabled transitions 1036 [2021-11-07 01:44:57,167 INFO L131 LiptonReduction]: Checked pairs total: 2557 [2021-11-07 01:44:57,168 INFO L133 LiptonReduction]: Total number of compositions: 82 [2021-11-07 01:44:57,176 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2021-11-07 01:44:57,196 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 01:44:57,204 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:57,204 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 01:44:57,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 822006776, now seen corresponding path program 1 times [2021-11-07 01:44:57,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:57,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587992674] [2021-11-07 01:44:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:57,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:57,534 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:57,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587992674] [2021-11-07 01:44:57,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587992674] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:57,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:57,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 01:44:57,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180087532] [2021-11-07 01:44:57,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:44:57,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:57,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:44:57,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:44:57,577 INFO L87 Difference]: Start difference. First operand has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:57,638 INFO L93 Difference]: Finished difference Result 134 states and 309 transitions. [2021-11-07 01:44:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:44:57,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 01:44:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:57,652 INFO L225 Difference]: With dead ends: 134 [2021-11-07 01:44:57,652 INFO L226 Difference]: Without dead ends: 130 [2021-11-07 01:44:57,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:44:57,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-07 01:44:57,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-11-07 01:44:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 2.3410852713178296) internal successors, (302), 129 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 302 transitions. [2021-11-07 01:44:57,704 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 302 transitions. Word has length 5 [2021-11-07 01:44:57,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:57,704 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 302 transitions. [2021-11-07 01:44:57,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 302 transitions. [2021-11-07 01:44:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:44:57,706 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:57,706 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:57,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:44:57,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:57,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:57,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1497929064, now seen corresponding path program 1 times [2021-11-07 01:44:57,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:57,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194464147] [2021-11-07 01:44:57,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:57,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:57,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:57,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194464147] [2021-11-07 01:44:57,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194464147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:57,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:57,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:44:57,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491617384] [2021-11-07 01:44:57,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:44:57,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:44:57,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:44:57,836 INFO L87 Difference]: Start difference. First operand 130 states and 302 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:57,880 INFO L93 Difference]: Finished difference Result 146 states and 320 transitions. [2021-11-07 01:44:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:44:57,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:44:57,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:57,882 INFO L225 Difference]: With dead ends: 146 [2021-11-07 01:44:57,883 INFO L226 Difference]: Without dead ends: 122 [2021-11-07 01:44:57,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:44:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-07 01:44:57,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-07 01:44:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 2.2975206611570247) internal successors, (278), 121 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2021-11-07 01:44:57,897 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 8 [2021-11-07 01:44:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:57,897 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2021-11-07 01:44:57,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:57,898 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2021-11-07 01:44:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:44:57,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:57,899 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:57,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:44:57,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:57,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:57,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1656167787, now seen corresponding path program 1 times [2021-11-07 01:44:57,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:57,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077659031] [2021-11-07 01:44:57,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:57,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:58,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:58,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077659031] [2021-11-07 01:44:58,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077659031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:58,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:58,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 01:44:58,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798255527] [2021-11-07 01:44:58,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:44:58,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:44:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:44:58,064 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:58,094 INFO L93 Difference]: Finished difference Result 126 states and 278 transitions. [2021-11-07 01:44:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:44:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:44:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:58,099 INFO L225 Difference]: With dead ends: 126 [2021-11-07 01:44:58,099 INFO L226 Difference]: Without dead ends: 114 [2021-11-07 01:44:58,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:44:58,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-07 01:44:58,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-11-07 01:44:58,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.2831858407079646) internal successors, (258), 113 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 258 transitions. [2021-11-07 01:44:58,119 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 258 transitions. Word has length 10 [2021-11-07 01:44:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:58,120 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 258 transitions. [2021-11-07 01:44:58,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 258 transitions. [2021-11-07 01:44:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:44:58,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:58,121 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:58,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:44:58,122 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:58,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:58,122 INFO L85 PathProgramCache]: Analyzing trace with hash -696333080, now seen corresponding path program 1 times [2021-11-07 01:44:58,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:58,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037833183] [2021-11-07 01:44:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:58,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:58,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:58,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037833183] [2021-11-07 01:44:58,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037833183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:58,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:58,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 01:44:58,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972797508] [2021-11-07 01:44:58,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:44:58,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:58,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:44:58,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:44:58,275 INFO L87 Difference]: Start difference. First operand 114 states and 258 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:58,305 INFO L93 Difference]: Finished difference Result 90 states and 167 transitions. [2021-11-07 01:44:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:44:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:44:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:58,308 INFO L225 Difference]: With dead ends: 90 [2021-11-07 01:44:58,308 INFO L226 Difference]: Without dead ends: 66 [2021-11-07 01:44:58,308 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:44:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-07 01:44:58,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-07 01:44:58,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.7538461538461538) internal successors, (114), 65 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 114 transitions. [2021-11-07 01:44:58,324 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 114 transitions. Word has length 10 [2021-11-07 01:44:58,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:58,324 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 114 transitions. [2021-11-07 01:44:58,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,325 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-11-07 01:44:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:44:58,325 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:58,326 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:58,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 01:44:58,326 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:58,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1673136612, now seen corresponding path program 1 times [2021-11-07 01:44:58,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:58,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975721496] [2021-11-07 01:44:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:58,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:58,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:58,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975721496] [2021-11-07 01:44:58,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975721496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:58,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:58,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:44:58,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013922026] [2021-11-07 01:44:58,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:44:58,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:58,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:44:58,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:44:58,549 INFO L87 Difference]: Start difference. First operand 66 states and 114 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:58,583 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2021-11-07 01:44:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:44:58,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 01:44:58,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:58,584 INFO L225 Difference]: With dead ends: 47 [2021-11-07 01:44:58,584 INFO L226 Difference]: Without dead ends: 38 [2021-11-07 01:44:58,584 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:44:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-07 01:44:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-07 01:44:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 58 transitions. [2021-11-07 01:44:58,587 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 58 transitions. Word has length 13 [2021-11-07 01:44:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:58,587 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 58 transitions. [2021-11-07 01:44:58,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2021-11-07 01:44:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:44:58,588 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:58,588 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:58,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 01:44:58,588 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:58,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:58,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1777938901, now seen corresponding path program 1 times [2021-11-07 01:44:58,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:58,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402040807] [2021-11-07 01:44:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:58,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:58,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:58,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402040807] [2021-11-07 01:44:58,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402040807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:58,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:58,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:44:58,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522260989] [2021-11-07 01:44:58,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:44:58,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:58,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:44:58,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:44:58,686 INFO L87 Difference]: Start difference. First operand 38 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:58,734 INFO L93 Difference]: Finished difference Result 50 states and 73 transitions. [2021-11-07 01:44:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:44:58,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 01:44:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:58,739 INFO L225 Difference]: With dead ends: 50 [2021-11-07 01:44:58,739 INFO L226 Difference]: Without dead ends: 23 [2021-11-07 01:44:58,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:44:58,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-07 01:44:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-07 01:44:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-11-07 01:44:58,742 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2021-11-07 01:44:58,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:58,743 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-11-07 01:44:58,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-11-07 01:44:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:44:58,744 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:58,745 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:58,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 01:44:58,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:58,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1840011253, now seen corresponding path program 2 times [2021-11-07 01:44:58,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:58,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115973216] [2021-11-07 01:44:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:58,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:58,935 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:44:58,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115973216] [2021-11-07 01:44:58,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115973216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:58,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:58,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:44:58,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361912471] [2021-11-07 01:44:58,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:44:58,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:44:58,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:44:58,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:44:58,936 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:59,013 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-11-07 01:44:59,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:44:59,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 01:44:59,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:59,014 INFO L225 Difference]: With dead ends: 30 [2021-11-07 01:44:59,014 INFO L226 Difference]: Without dead ends: 19 [2021-11-07 01:44:59,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:44:59,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-07 01:44:59,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-07 01:44:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-07 01:44:59,016 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 16 [2021-11-07 01:44:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:59,016 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-07 01:44:59,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-07 01:44:59,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:44:59,017 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:59,026 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:59,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 01:44:59,027 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 01:44:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1641274609, now seen corresponding path program 3 times [2021-11-07 01:44:59,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:44:59,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438894826] [2021-11-07 01:44:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:59,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:44:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:44:59,120 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:44:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:44:59,253 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:44:59,253 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:44:59,254 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:44:59,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:44:59,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:44:59,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 01:44:59,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:44:59,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 01:44:59,259 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2021-11-07 01:44:59,264 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:44:59,265 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:44:59,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:44:59 BasicIcfg [2021-11-07 01:44:59,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:44:59,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:44:59,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:44:59,358 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:44:59,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:51" (3/4) ... [2021-11-07 01:44:59,361 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:44:59,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:44:59,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:44:59,457 INFO L168 Benchmark]: Toolchain (without parser) took 10348.29 ms. Allocated memory was 111.1 MB in the beginning and 180.4 MB in the end (delta: 69.2 MB). Free memory was 70.1 MB in the beginning and 122.5 MB in the end (delta: -52.4 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,458 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:44:59,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.94 ms. Allocated memory is still 111.1 MB. Free memory was 69.9 MB in the beginning and 72.1 MB in the end (delta: -2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.13 ms. Allocated memory is still 111.1 MB. Free memory was 72.1 MB in the beginning and 69.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,459 INFO L168 Benchmark]: Boogie Preprocessor took 76.20 ms. Allocated memory is still 111.1 MB. Free memory was 69.7 MB in the beginning and 67.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,460 INFO L168 Benchmark]: RCFGBuilder took 1622.61 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 67.6 MB in the beginning and 71.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,460 INFO L168 Benchmark]: TraceAbstraction took 7735.84 ms. Allocated memory was 148.9 MB in the beginning and 180.4 MB in the end (delta: 31.5 MB). Free memory was 71.5 MB in the beginning and 131.9 MB in the end (delta: -60.5 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,460 INFO L168 Benchmark]: Witness Printer took 97.68 ms. Allocated memory is still 180.4 MB. Free memory was 131.9 MB in the beginning and 122.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:59,463 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.94 ms. Allocated memory is still 111.1 MB. Free memory was 69.9 MB in the beginning and 72.1 MB in the end (delta: -2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.13 ms. Allocated memory is still 111.1 MB. Free memory was 72.1 MB in the beginning and 69.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.20 ms. Allocated memory is still 111.1 MB. Free memory was 69.7 MB in the beginning and 67.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1622.61 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 67.6 MB in the beginning and 71.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7735.84 ms. Allocated memory was 148.9 MB in the beginning and 180.4 MB in the end (delta: 31.5 MB). Free memory was 71.5 MB in the beginning and 131.9 MB in the end (delta: -60.5 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. * Witness Printer took 97.68 ms. Allocated memory is still 180.4 MB. Free memory was 131.9 MB in the beginning and 122.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 95 PlacesBefore, 27 PlacesAfterwards, 90 TransitionsBefore, 21 TransitionsAfterwards, 1036 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 2557 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1308, positive: 1187, positive conditional: 0, positive unconditional: 1187, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 697, positive: 668, positive conditional: 0, positive unconditional: 668, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 697, positive: 659, positive conditional: 0, positive unconditional: 659, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 320, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 305, negative conditional: 0, negative unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1308, positive: 519, positive conditional: 0, positive unconditional: 519, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 697, unknown conditional: 0, unknown unconditional: 697] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L815] 0 pthread_t t1649; [L816] FCALL, FORK 0 pthread_create(&t1649, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] 0 pthread_t t1650; [L818] FCALL, FORK 0 pthread_create(&t1650, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L773] 2 y$w_buff1 = y$w_buff0 [L774] 2 y$w_buff0 = 1 [L775] 2 y$w_buff1_used = y$w_buff0_used [L776] 2 y$w_buff0_used = (_Bool)1 [L19] COND FALSE 2 !(!expression) [L778] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L779] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L780] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L781] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L784] 2 z = 1 [L787] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L790] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L749] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L750] 1 y$flush_delayed = weak$$choice2 [L751] 1 y$mem_tmp = y [L752] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L752] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L753] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L753] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L754] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L754] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L755] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L755] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L756] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L757] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L758] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] 1 __unbuffered_p0_EAX = y [L760] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L760] 1 y = y$flush_delayed ? y$mem_tmp : y [L761] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L793] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L793] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L794] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L794] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L795] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L795] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L796] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L796] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L797] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L797] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L802] 2 return 0; [L766] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L768] 1 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L4] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 134 SDtfs, 121 SDslu, 215 SDs, 0 SdLazy, 97 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 01:44:59,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608d354d-1e73-4efc-aafe-d1a85ece809f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE