./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:07:00,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:00,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:00,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:00,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:00,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:00,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:00,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:00,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:00,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:00,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:00,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:00,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:00,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:00,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:00,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:00,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:00,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:00,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:00,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:00,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:00,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:00,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:00,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:00,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:00,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:00,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:00,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:00,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:00,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:00,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:00,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:00,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:00,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:00,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:00,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:00,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:00,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:00,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:00,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:00,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:00,954 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:07:00,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:00,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:01,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:01,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:01,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:01,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:01,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:01,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:01,004 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:01,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:01,006 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:01,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:07:01,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:01,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:01,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:01,007 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:07:01,007 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:07:01,007 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:07:01,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:01,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:07:01,008 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:01,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:01,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:01,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:01,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:01,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:01,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:01,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:01,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:07:01,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:07:01,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 [2022-11-16 11:07:01,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:07:01,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:07:01,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:07:01,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:07:01,397 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:07:01,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-16 11:07:01,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/3bcd39187/d3b6b0d70fea4236964e5be0b4aa7690/FLAGaee2e8eb1 [2022-11-16 11:07:02,130 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:07:02,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-16 11:07:02,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/3bcd39187/d3b6b0d70fea4236964e5be0b4aa7690/FLAGaee2e8eb1 [2022-11-16 11:07:02,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/3bcd39187/d3b6b0d70fea4236964e5be0b4aa7690 [2022-11-16 11:07:02,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:07:02,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:07:02,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:02,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:07:02,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:07:02,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:02" (1/1) ... [2022-11-16 11:07:02,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b22fc71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:02, skipping insertion in model container [2022-11-16 11:07:02,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:02" (1/1) ... [2022-11-16 11:07:02,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:07:02,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:07:02,697 WARN L229 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_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-16 11:07:03,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:03,054 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:07:03,070 WARN L229 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_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-16 11:07:03,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:03,205 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:07:03,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03 WrapperNode [2022-11-16 11:07:03,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:03,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:03,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:07:03,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:07:03,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,298 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-11-16 11:07:03,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:03,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:07:03,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:07:03,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:07:03,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,325 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:07:03,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:07:03,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:07:03,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:07:03,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (1/1) ... [2022-11-16 11:07:03,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:03,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:07:03,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:07:03,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:07:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:07:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:07:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:07:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:07:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:07:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:07:03,441 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:07:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:07:03,441 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:07:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:07:03,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:07:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 11:07:03,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 11:07:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:07:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:07:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:07:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:07:03,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:07:03,633 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:07:03,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:07:04,088 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:07:04,212 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:07:04,212 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:07:04,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:04 BoogieIcfgContainer [2022-11-16 11:07:04,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:07:04,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:07:04,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:07:04,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:07:04,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:07:02" (1/3) ... [2022-11-16 11:07:04,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4398109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:04, skipping insertion in model container [2022-11-16 11:07:04,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:03" (2/3) ... [2022-11-16 11:07:04,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4398109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:04, skipping insertion in model container [2022-11-16 11:07:04,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:04" (3/3) ... [2022-11-16 11:07:04,224 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-16 11:07:04,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:07:04,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-16 11:07:04,243 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:07:04,304 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:07:04,342 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:07:04,367 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-16 11:07:04,378 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-16 11:07:04,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 316 flow [2022-11-16 11:07:04,489 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-16 11:07:04,489 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:04,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 144 events. 2/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-11-16 11:07:04,499 INFO L119 LiptonReduction]: Number of co-enabled transitions 3644 [2022-11-16 11:07:11,808 INFO L134 LiptonReduction]: Checked pairs total: 10187 [2022-11-16 11:07:11,808 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-11-16 11:07:11,818 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 108 flow [2022-11-16 11:07:12,211 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5498 states, 5479 states have (on average 4.097280525643366) internal successors, (22449), 5497 states have internal predecessors, (22449), 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) [2022-11-16 11:07:12,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:07:12,237 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69e7edde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:07:12,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-16 11:07:12,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 5498 states, 5479 states have (on average 4.097280525643366) internal successors, (22449), 5497 states have internal predecessors, (22449), 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) [2022-11-16 11:07:12,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:07:12,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:12,261 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:07:12,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:12,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:12,267 INFO L85 PathProgramCache]: Analyzing trace with hash 620, now seen corresponding path program 1 times [2022-11-16 11:07:12,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:12,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480918558] [2022-11-16 11:07:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:12,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:12,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:12,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480918558] [2022-11-16 11:07:12,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480918558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:12,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:12,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:07:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455583809] [2022-11-16 11:07:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:12,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:07:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:07:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:07:12,460 INFO L87 Difference]: Start difference. First operand has 5498 states, 5479 states have (on average 4.097280525643366) internal successors, (22449), 5497 states have internal predecessors, (22449), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 11:07:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:12,687 INFO L93 Difference]: Finished difference Result 5124 states and 20487 transitions. [2022-11-16 11:07:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:07:12,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-16 11:07:12,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:12,770 INFO L225 Difference]: With dead ends: 5124 [2022-11-16 11:07:12,770 INFO L226 Difference]: Without dead ends: 5124 [2022-11-16 11:07:12,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:07:12,774 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:12,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:07:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2022-11-16 11:07:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 5124. [2022-11-16 11:07:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 5119 states have (on average 4.002148857198671) internal successors, (20487), 5123 states have internal predecessors, (20487), 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) [2022-11-16 11:07:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 20487 transitions. [2022-11-16 11:07:13,217 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 20487 transitions. Word has length 1 [2022-11-16 11:07:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:13,218 INFO L495 AbstractCegarLoop]: Abstraction has 5124 states and 20487 transitions. [2022-11-16 11:07:13,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 11:07:13,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 20487 transitions. [2022-11-16 11:07:13,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:07:13,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:13,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:07:13,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:07:13,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:13,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash 612097, now seen corresponding path program 1 times [2022-11-16 11:07:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:13,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943833283] [2022-11-16 11:07:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:13,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:13,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:13,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943833283] [2022-11-16 11:07:13,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943833283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:13,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:13,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:07:13,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890687280] [2022-11-16 11:07:13,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:13,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:07:13,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:07:13,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:13,589 INFO L87 Difference]: Start difference. First operand 5124 states and 20487 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:07:13,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:13,879 INFO L93 Difference]: Finished difference Result 4187 states and 16550 transitions. [2022-11-16 11:07:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:07:13,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-16 11:07:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:13,926 INFO L225 Difference]: With dead ends: 4187 [2022-11-16 11:07:13,934 INFO L226 Difference]: Without dead ends: 4062 [2022-11-16 11:07:13,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:13,937 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:13,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:07:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2022-11-16 11:07:14,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4062. [2022-11-16 11:07:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4062 states, 4060 states have (on average 3.9716748768472905) internal successors, (16125), 4061 states have internal predecessors, (16125), 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) [2022-11-16 11:07:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4062 states to 4062 states and 16125 transitions. [2022-11-16 11:07:14,194 INFO L78 Accepts]: Start accepts. Automaton has 4062 states and 16125 transitions. Word has length 3 [2022-11-16 11:07:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:14,195 INFO L495 AbstractCegarLoop]: Abstraction has 4062 states and 16125 transitions. [2022-11-16 11:07:14,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:07:14,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4062 states and 16125 transitions. [2022-11-16 11:07:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:07:14,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:14,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:14,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:07:14,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash 59936197, now seen corresponding path program 1 times [2022-11-16 11:07:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:14,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214268438] [2022-11-16 11:07:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:14,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:14,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:14,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214268438] [2022-11-16 11:07:14,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214268438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:14,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:14,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:07:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804004437] [2022-11-16 11:07:14,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:14,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:07:14,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:07:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:07:14,544 INFO L87 Difference]: Start difference. First operand 4062 states and 16125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-16 11:07:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:14,973 INFO L93 Difference]: Finished difference Result 8318 states and 32012 transitions. [2022-11-16 11:07:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:07:14,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-16 11:07:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:15,138 INFO L225 Difference]: With dead ends: 8318 [2022-11-16 11:07:15,139 INFO L226 Difference]: Without dead ends: 8318 [2022-11-16 11:07:15,142 INFO L412 NwaCegarLoop]: 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 [2022-11-16 11:07:15,146 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 42 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:15,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 12 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:07:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2022-11-16 11:07:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 5898. [2022-11-16 11:07:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 5896 states have (on average 3.980495251017639) internal successors, (23469), 5897 states have internal predecessors, (23469), 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) [2022-11-16 11:07:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 23469 transitions. [2022-11-16 11:07:15,757 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 23469 transitions. Word has length 12 [2022-11-16 11:07:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:15,758 INFO L495 AbstractCegarLoop]: Abstraction has 5898 states and 23469 transitions. [2022-11-16 11:07:15,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-16 11:07:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 23469 transitions. [2022-11-16 11:07:15,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:07:15,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:15,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:15,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:07:15,764 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:15,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash 59936264, now seen corresponding path program 1 times [2022-11-16 11:07:15,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:15,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365028516] [2022-11-16 11:07:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:16,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:16,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365028516] [2022-11-16 11:07:16,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365028516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:16,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:16,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:16,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433663765] [2022-11-16 11:07:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:16,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:16,511 INFO L87 Difference]: Start difference. First operand 5898 states and 23469 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-16 11:07:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:16,798 INFO L93 Difference]: Finished difference Result 5273 states and 20239 transitions. [2022-11-16 11:07:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:16,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-16 11:07:16,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:16,867 INFO L225 Difference]: With dead ends: 5273 [2022-11-16 11:07:16,867 INFO L226 Difference]: Without dead ends: 4405 [2022-11-16 11:07:16,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:16,869 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 41 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:16,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 36 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4405 states. [2022-11-16 11:07:17,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4405 to 4405. [2022-11-16 11:07:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4405 states, 4404 states have (on average 3.8521798365122617) internal successors, (16965), 4404 states have internal predecessors, (16965), 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) [2022-11-16 11:07:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4405 states to 4405 states and 16965 transitions. [2022-11-16 11:07:17,069 INFO L78 Accepts]: Start accepts. Automaton has 4405 states and 16965 transitions. Word has length 12 [2022-11-16 11:07:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:17,069 INFO L495 AbstractCegarLoop]: Abstraction has 4405 states and 16965 transitions. [2022-11-16 11:07:17,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-16 11:07:17,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4405 states and 16965 transitions. [2022-11-16 11:07:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:07:17,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:17,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:17,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:07:17,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:17,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1673422861, now seen corresponding path program 1 times [2022-11-16 11:07:17,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:17,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215529106] [2022-11-16 11:07:17,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:17,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:17,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:17,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215529106] [2022-11-16 11:07:17,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215529106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:17,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:17,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:07:17,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24118540] [2022-11-16 11:07:17,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:17,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:07:17,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:17,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:07:17,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:07:17,315 INFO L87 Difference]: Start difference. First operand 4405 states and 16965 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 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) [2022-11-16 11:07:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:17,482 INFO L93 Difference]: Finished difference Result 4112 states and 14204 transitions. [2022-11-16 11:07:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:07:17,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 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 [2022-11-16 11:07:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:17,499 INFO L225 Difference]: With dead ends: 4112 [2022-11-16 11:07:17,499 INFO L226 Difference]: Without dead ends: 3205 [2022-11-16 11:07:17,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:17,500 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 57 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:17,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 9 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:07:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2022-11-16 11:07:17,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3205. [2022-11-16 11:07:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 3.427278401997503) internal successors, (10981), 3204 states have internal predecessors, (10981), 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) [2022-11-16 11:07:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 10981 transitions. [2022-11-16 11:07:17,645 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 10981 transitions. Word has length 13 [2022-11-16 11:07:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:17,646 INFO L495 AbstractCegarLoop]: Abstraction has 3205 states and 10981 transitions. [2022-11-16 11:07:17,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 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) [2022-11-16 11:07:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 10981 transitions. [2022-11-16 11:07:17,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:07:17,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:17,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:17,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:07:17,651 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:17,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash -560199980, now seen corresponding path program 1 times [2022-11-16 11:07:17,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:17,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905151542] [2022-11-16 11:07:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:17,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:17,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905151542] [2022-11-16 11:07:17,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905151542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:17,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:17,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:07:17,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686586689] [2022-11-16 11:07:17,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:17,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:07:17,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:07:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:17,908 INFO L87 Difference]: Start difference. First operand 3205 states and 10981 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-11-16 11:07:18,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:18,194 INFO L93 Difference]: Finished difference Result 3829 states and 12615 transitions. [2022-11-16 11:07:18,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:07:18,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 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 [2022-11-16 11:07:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:18,210 INFO L225 Difference]: With dead ends: 3829 [2022-11-16 11:07:18,210 INFO L226 Difference]: Without dead ends: 3481 [2022-11-16 11:07:18,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:18,211 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 62 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:18,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 20 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:18,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2022-11-16 11:07:18,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3169. [2022-11-16 11:07:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 3168 states have (on average 3.4220328282828283) internal successors, (10841), 3168 states have internal predecessors, (10841), 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) [2022-11-16 11:07:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 10841 transitions. [2022-11-16 11:07:18,329 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 10841 transitions. Word has length 16 [2022-11-16 11:07:18,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:18,329 INFO L495 AbstractCegarLoop]: Abstraction has 3169 states and 10841 transitions. [2022-11-16 11:07:18,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-11-16 11:07:18,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 10841 transitions. [2022-11-16 11:07:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:07:18,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:18,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:18,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:07:18,336 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:18,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:18,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2073204236, now seen corresponding path program 1 times [2022-11-16 11:07:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:18,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224235018] [2022-11-16 11:07:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:18,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:18,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:18,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224235018] [2022-11-16 11:07:18,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224235018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:18,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:18,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:18,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212575351] [2022-11-16 11:07:18,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:18,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:07:18,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:18,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:07:18,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:18,536 INFO L87 Difference]: Start difference. First operand 3169 states and 10841 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2022-11-16 11:07:18,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:18,783 INFO L93 Difference]: Finished difference Result 2484 states and 7748 transitions. [2022-11-16 11:07:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:07:18,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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 [2022-11-16 11:07:18,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:18,792 INFO L225 Difference]: With dead ends: 2484 [2022-11-16 11:07:18,793 INFO L226 Difference]: Without dead ends: 1937 [2022-11-16 11:07:18,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:18,794 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 101 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:18,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 12 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:18,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2022-11-16 11:07:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1907. [2022-11-16 11:07:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1906 states have (on average 3.060335781741868) internal successors, (5833), 1906 states have internal predecessors, (5833), 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) [2022-11-16 11:07:18,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 5833 transitions. [2022-11-16 11:07:18,855 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 5833 transitions. Word has length 16 [2022-11-16 11:07:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:18,856 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 5833 transitions. [2022-11-16 11:07:18,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2022-11-16 11:07:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 5833 transitions. [2022-11-16 11:07:18,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:07:18,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:18,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:18,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:07:18,862 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:18,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:18,863 INFO L85 PathProgramCache]: Analyzing trace with hash -866134164, now seen corresponding path program 1 times [2022-11-16 11:07:18,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:18,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712076155] [2022-11-16 11:07:18,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:18,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:19,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:19,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712076155] [2022-11-16 11:07:19,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712076155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:19,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:19,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:07:19,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986965144] [2022-11-16 11:07:19,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:19,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:07:19,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:19,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:07:19,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:07:19,153 INFO L87 Difference]: Start difference. First operand 1907 states and 5833 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-11-16 11:07:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:19,351 INFO L93 Difference]: Finished difference Result 2684 states and 8012 transitions. [2022-11-16 11:07:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:07:19,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) Word has length 20 [2022-11-16 11:07:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:19,358 INFO L225 Difference]: With dead ends: 2684 [2022-11-16 11:07:19,358 INFO L226 Difference]: Without dead ends: 1538 [2022-11-16 11:07:19,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:19,360 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:19,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 17 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2022-11-16 11:07:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1363. [2022-11-16 11:07:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 2.963289280469897) internal successors, (4036), 1362 states have internal predecessors, (4036), 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) [2022-11-16 11:07:19,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 4036 transitions. [2022-11-16 11:07:19,406 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 4036 transitions. Word has length 20 [2022-11-16 11:07:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:19,407 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 4036 transitions. [2022-11-16 11:07:19,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-11-16 11:07:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 4036 transitions. [2022-11-16 11:07:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:07:19,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:19,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:19,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:07:19,412 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1767270052, now seen corresponding path program 1 times [2022-11-16 11:07:19,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:19,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807206275] [2022-11-16 11:07:19,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:19,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:19,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:19,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807206275] [2022-11-16 11:07:19,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807206275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:19,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:19,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192447828] [2022-11-16 11:07:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:19,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:19,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:19,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:19,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:19,669 INFO L87 Difference]: Start difference. First operand 1363 states and 4036 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2022-11-16 11:07:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:19,896 INFO L93 Difference]: Finished difference Result 1116 states and 3270 transitions. [2022-11-16 11:07:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:19,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) Word has length 20 [2022-11-16 11:07:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:19,900 INFO L225 Difference]: With dead ends: 1116 [2022-11-16 11:07:19,901 INFO L226 Difference]: Without dead ends: 1003 [2022-11-16 11:07:19,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:07:19,901 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 160 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:19,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 15 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-11-16 11:07:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2022-11-16 11:07:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 2.972055888223553) internal successors, (2978), 1002 states have internal predecessors, (2978), 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) [2022-11-16 11:07:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 2978 transitions. [2022-11-16 11:07:19,956 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 2978 transitions. Word has length 20 [2022-11-16 11:07:19,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:19,956 INFO L495 AbstractCegarLoop]: Abstraction has 1003 states and 2978 transitions. [2022-11-16 11:07:19,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2022-11-16 11:07:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 2978 transitions. [2022-11-16 11:07:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:07:19,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:19,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:19,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:07:19,963 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:19,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:19,964 INFO L85 PathProgramCache]: Analyzing trace with hash 600093747, now seen corresponding path program 1 times [2022-11-16 11:07:19,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:19,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711623871] [2022-11-16 11:07:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:19,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:20,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:20,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711623871] [2022-11-16 11:07:20,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711623871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:20,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:20,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:20,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930548131] [2022-11-16 11:07:20,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:20,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:07:20,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:20,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:07:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:20,283 INFO L87 Difference]: Start difference. First operand 1003 states and 2978 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-16 11:07:20,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:20,562 INFO L93 Difference]: Finished difference Result 1563 states and 4546 transitions. [2022-11-16 11:07:20,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:07:20,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2022-11-16 11:07:20,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:20,568 INFO L225 Difference]: With dead ends: 1563 [2022-11-16 11:07:20,568 INFO L226 Difference]: Without dead ends: 1369 [2022-11-16 11:07:20,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:07:20,569 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 61 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:20,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 11 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-11-16 11:07:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1126. [2022-11-16 11:07:20,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1125 states have (on average 2.92) internal successors, (3285), 1125 states have internal predecessors, (3285), 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) [2022-11-16 11:07:20,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3285 transitions. [2022-11-16 11:07:20,601 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3285 transitions. Word has length 24 [2022-11-16 11:07:20,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:20,602 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 3285 transitions. [2022-11-16 11:07:20,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-16 11:07:20,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3285 transitions. [2022-11-16 11:07:20,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:07:20,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:20,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:20,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:07:20,606 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash 303759537, now seen corresponding path program 2 times [2022-11-16 11:07:20,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:20,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453634089] [2022-11-16 11:07:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:20,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:20,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:20,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453634089] [2022-11-16 11:07:20,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453634089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:20,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:20,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:20,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670040964] [2022-11-16 11:07:20,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:20,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:20,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:20,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:20,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:20,863 INFO L87 Difference]: Start difference. First operand 1126 states and 3285 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-16 11:07:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:21,167 INFO L93 Difference]: Finished difference Result 1683 states and 4850 transitions. [2022-11-16 11:07:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:07:21,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2022-11-16 11:07:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:21,171 INFO L225 Difference]: With dead ends: 1683 [2022-11-16 11:07:21,171 INFO L226 Difference]: Without dead ends: 1042 [2022-11-16 11:07:21,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:07:21,172 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 79 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:21,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 16 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:07:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-11-16 11:07:21,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 947. [2022-11-16 11:07:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 2.799154334038055) internal successors, (2648), 946 states have internal predecessors, (2648), 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) [2022-11-16 11:07:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 2648 transitions. [2022-11-16 11:07:21,195 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 2648 transitions. Word has length 24 [2022-11-16 11:07:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:21,195 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 2648 transitions. [2022-11-16 11:07:21,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-16 11:07:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 2648 transitions. [2022-11-16 11:07:21,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:07:21,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:21,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:21,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:07:21,199 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:21,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1314247821, now seen corresponding path program 3 times [2022-11-16 11:07:21,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:21,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434944149] [2022-11-16 11:07:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:21,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:21,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:21,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434944149] [2022-11-16 11:07:21,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434944149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:21,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:21,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:07:21,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031093511] [2022-11-16 11:07:21,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:21,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:07:21,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:21,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:07:21,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:21,500 INFO L87 Difference]: Start difference. First operand 947 states and 2648 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-16 11:07:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:21,701 INFO L93 Difference]: Finished difference Result 902 states and 2558 transitions. [2022-11-16 11:07:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:07:21,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2022-11-16 11:07:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:21,703 INFO L225 Difference]: With dead ends: 902 [2022-11-16 11:07:21,703 INFO L226 Difference]: Without dead ends: 421 [2022-11-16 11:07:21,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:07:21,704 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 177 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:21,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 10 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:21,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-16 11:07:21,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2022-11-16 11:07:21,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 2.8095238095238093) internal successors, (1180), 420 states have internal predecessors, (1180), 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) [2022-11-16 11:07:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 1180 transitions. [2022-11-16 11:07:21,718 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 1180 transitions. Word has length 24 [2022-11-16 11:07:21,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:21,718 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 1180 transitions. [2022-11-16 11:07:21,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-16 11:07:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 1180 transitions. [2022-11-16 11:07:21,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:21,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:21,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:21,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:07:21,721 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash -58810013, now seen corresponding path program 1 times [2022-11-16 11:07:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:21,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035781457] [2022-11-16 11:07:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:23,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:23,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035781457] [2022-11-16 11:07:23,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035781457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:23,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:23,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:07:23,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842462997] [2022-11-16 11:07:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:23,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:07:23,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:07:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:07:23,272 INFO L87 Difference]: Start difference. First operand 421 states and 1180 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-16 11:07:23,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:23,737 INFO L93 Difference]: Finished difference Result 686 states and 1881 transitions. [2022-11-16 11:07:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:07:23,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 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) Word has length 28 [2022-11-16 11:07:23,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:23,739 INFO L225 Difference]: With dead ends: 686 [2022-11-16 11:07:23,739 INFO L226 Difference]: Without dead ends: 557 [2022-11-16 11:07:23,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:07:23,740 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 149 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:23,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 24 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:07:23,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-16 11:07:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 349. [2022-11-16 11:07:23,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 2.632183908045977) internal successors, (916), 348 states have internal predecessors, (916), 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) [2022-11-16 11:07:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 916 transitions. [2022-11-16 11:07:23,751 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 916 transitions. Word has length 28 [2022-11-16 11:07:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:23,752 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 916 transitions. [2022-11-16 11:07:23,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-16 11:07:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 916 transitions. [2022-11-16 11:07:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:23,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:23,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:23,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:07:23,756 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1980699357, now seen corresponding path program 2 times [2022-11-16 11:07:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:23,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154331883] [2022-11-16 11:07:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:24,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:24,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154331883] [2022-11-16 11:07:24,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154331883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:24,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:24,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:07:24,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784780276] [2022-11-16 11:07:24,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:24,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:07:24,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:24,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:07:24,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:07:24,220 INFO L87 Difference]: Start difference. First operand 349 states and 916 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 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) [2022-11-16 11:07:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:24,556 INFO L93 Difference]: Finished difference Result 451 states and 1177 transitions. [2022-11-16 11:07:24,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:07:24,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 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) Word has length 28 [2022-11-16 11:07:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:24,557 INFO L225 Difference]: With dead ends: 451 [2022-11-16 11:07:24,557 INFO L226 Difference]: Without dead ends: 192 [2022-11-16 11:07:24,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:07:24,558 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 63 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:24,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 19 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:24,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-16 11:07:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 183. [2022-11-16 11:07:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.3516483516483517) internal successors, (428), 182 states have internal predecessors, (428), 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) [2022-11-16 11:07:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 428 transitions. [2022-11-16 11:07:24,562 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 428 transitions. Word has length 28 [2022-11-16 11:07:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:24,563 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 428 transitions. [2022-11-16 11:07:24,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 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) [2022-11-16 11:07:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 428 transitions. [2022-11-16 11:07:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:24,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:24,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:24,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:07:24,567 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:24,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:24,568 INFO L85 PathProgramCache]: Analyzing trace with hash -798101215, now seen corresponding path program 3 times [2022-11-16 11:07:24,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:24,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5371354] [2022-11-16 11:07:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:24,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:07:24,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:07:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:07:24,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:07:24,802 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:07:24,804 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-16 11:07:24,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-16 11:07:24,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-16 11:07:24,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-16 11:07:24,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-16 11:07:24,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-16 11:07:24,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-16 11:07:24,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-16 11:07:24,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-16 11:07:24,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-16 11:07:24,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-16 11:07:24,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-16 11:07:24,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-16 11:07:24,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-16 11:07:24,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-16 11:07:24,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-16 11:07:24,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:07:24,813 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:24,819 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:07:24,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:07:24,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:07:24 BasicIcfg [2022-11-16 11:07:24,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:07:24,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:07:24,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:07:24,964 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:07:24,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:04" (3/4) ... [2022-11-16 11:07:24,969 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:07:24,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:07:24,970 INFO L158 Benchmark]: Toolchain (without parser) took 22555.19ms. Allocated memory was 92.3MB in the beginning and 838.9MB in the end (delta: 746.6MB). Free memory was 57.4MB in the beginning and 545.1MB in the end (delta: -487.6MB). Peak memory consumption was 257.8MB. Max. memory is 16.1GB. [2022-11-16 11:07:24,970 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:07:24,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 791.27ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 57.3MB in the beginning and 96.6MB in the end (delta: -39.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:07:24,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.97ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 94.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:07:24,972 INFO L158 Benchmark]: Boogie Preprocessor took 31.31ms. Allocated memory is still 134.2MB. Free memory was 94.0MB in the beginning and 91.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:07:24,973 INFO L158 Benchmark]: RCFGBuilder took 884.24ms. Allocated memory is still 134.2MB. Free memory was 91.9MB in the beginning and 87.4MB in the end (delta: 4.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-11-16 11:07:24,973 INFO L158 Benchmark]: TraceAbstraction took 20746.29ms. Allocated memory was 134.2MB in the beginning and 838.9MB in the end (delta: 704.6MB). Free memory was 87.4MB in the beginning and 545.1MB in the end (delta: -457.7MB). Peak memory consumption was 246.7MB. Max. memory is 16.1GB. [2022-11-16 11:07:24,973 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 838.9MB. Free memory is still 545.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:07:24,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 791.27ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 57.3MB in the beginning and 96.6MB in the end (delta: -39.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.97ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 94.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.31ms. Allocated memory is still 134.2MB. Free memory was 94.0MB in the beginning and 91.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 884.24ms. Allocated memory is still 134.2MB. Free memory was 91.9MB in the beginning and 87.4MB in the end (delta: 4.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20746.29ms. Allocated memory was 134.2MB in the beginning and 838.9MB in the end (delta: 704.6MB). Free memory was 87.4MB in the beginning and 545.1MB in the end (delta: -457.7MB). Peak memory consumption was 246.7MB. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 838.9MB. Free memory is still 545.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 159 PlacesBefore, 56 PlacesAfterwards, 148 TransitionsBefore, 44 TransitionsAfterwards, 3644 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 10187 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5208, independent: 4994, independent conditional: 0, independent unconditional: 4994, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2681, independent: 2603, independent conditional: 0, independent unconditional: 2603, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2681, independent: 2577, independent conditional: 0, independent unconditional: 2577, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 104, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 814, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 768, dependent conditional: 0, dependent unconditional: 768, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5208, independent: 2391, independent conditional: 0, independent unconditional: 2391, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 2681, unknown conditional: 0, unknown unconditional: 2681] , Statistics on independence cache: Total cache size (in pairs): 386, Positive cache size: 355, Positive conditional cache size: 0, Positive unconditional cache size: 355, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L736] 0 _Bool a$w_buff1_used; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L720] 0 int a$mem_tmp; [L731] 0 _Bool a$read_delayed; [L712] 0 int __unbuffered_p1_EAX = 0; [L718] 0 int a = 0; [L729] 0 _Bool a$r_buff1_thd3; [L714] 0 int __unbuffered_p2_EAX = 0; [L730] 0 _Bool a$r_buff1_thd4; [L727] 0 _Bool a$r_buff1_thd1; [L733] 0 int a$w_buff0; [L728] 0 _Bool a$r_buff1_thd2; [L735] 0 int a$w_buff1; [L719] 0 _Bool a$flush_delayed; [L726] 0 _Bool a$r_buff1_thd0; [L710] 0 int __unbuffered_cnt = 0; [L732] 0 int *a$read_delayed_var; [L738] 0 _Bool main$tmp_guard1; [L737] 0 _Bool main$tmp_guard0; [L734] 0 _Bool a$w_buff0_used; [L722] 0 _Bool a$r_buff0_thd1; [L721] 0 _Bool a$r_buff0_thd0; [L716] 0 int __unbuffered_p3_EAX = 0; [L724] 0 _Bool a$r_buff0_thd3; [L723] 0 _Bool a$r_buff0_thd2; [L725] 0 _Bool a$r_buff0_thd4; [L740] 0 int x = 0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L861] 0 pthread_t t1353; [L862] FCALL, FORK 0 pthread_create(&t1353, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1353, ((void *)0), P0, ((void *)0))=-3, t1353={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L750] 1 a$w_buff1 = a$w_buff0 [L751] 1 a$w_buff0 = 1 [L752] 1 a$w_buff1_used = a$w_buff0_used [L753] 1 a$w_buff0_used = (_Bool)1 [L754] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L754] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L755] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L756] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L757] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L758] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L759] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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, z=0] [L863] 0 pthread_t t1354; [L864] FCALL, FORK 0 pthread_create(&t1354, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1354, ((void *)0), P1, ((void *)0))=-2, t1353={5:0}, t1354={6:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L865] 0 pthread_t t1355; [L866] FCALL, FORK 0 pthread_create(&t1355, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1355, ((void *)0), P2, ((void *)0))=-1, t1353={5:0}, t1354={6:0}, t1355={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L800] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L806] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L807] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L808] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L809] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L810] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L815] 3 return 0; [L786] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L787] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L788] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L789] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L790] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L867] 0 pthread_t t1356; [L868] FCALL, FORK 0 pthread_create(&t1356, ((void *)0), P3, ((void *)0)) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1356, ((void *)0), P3, ((void *)0))=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L820] 4 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 a$flush_delayed = weak$$choice2 [L826] 4 a$mem_tmp = a [L827] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L828] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L829] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L830] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L831] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L833] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = a [L835] 4 a = a$flush_delayed ? a$mem_tmp : a [L836] 4 a$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L839] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L840] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L841] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L842] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L843] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L846] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L848] 4 return 0; [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 1 return 0; [L870] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L872] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L872] RET 0 assume_abort_if_not(main$tmp_guard0) [L874] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L875] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L876] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L877] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L878] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L881] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 862]: 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: 868]: 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: 864]: 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: 866]: 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 9 procedures, 184 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 20.5s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1044 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1044 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1888 IncrementalHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 76 mSDtfsCounter, 1888 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5898occurred in iteration=3, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 3492 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 1982 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:07:25,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:07:27,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:27,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:27,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:27,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:27,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:27,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:27,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:27,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:27,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:27,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:27,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:27,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:27,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:27,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:27,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:27,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:27,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:27,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:27,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:27,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:27,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:27,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:27,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:27,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:27,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:27,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:27,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:27,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:27,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:27,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:27,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:27,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:27,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:27,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:27,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:27,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:27,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:27,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:27,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:27,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:27,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 11:07:27,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:27,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:27,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:27,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:27,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:27,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:27,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:27,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:27,504 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:27,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:27,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:27,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:07:27,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:27,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:27,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:27,507 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:07:27,507 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:07:27,507 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:07:27,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:27,508 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:07:27,508 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:07:27,508 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:07:27,509 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:27,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:27,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:27,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:27,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:27,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:27,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:27,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:27,511 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:07:27,511 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:07:27,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:07:27,512 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/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_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 [2022-11-16 11:07:27,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:07:27,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:07:27,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:07:27,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:07:27,893 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:07:27,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-16 11:07:27,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/b7b86854c/eb9abf572ad64ea1ad11e1b877a1340a/FLAGf93eeec7c [2022-11-16 11:07:28,545 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:07:28,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-16 11:07:28,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/b7b86854c/eb9abf572ad64ea1ad11e1b877a1340a/FLAGf93eeec7c [2022-11-16 11:07:28,829 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/data/b7b86854c/eb9abf572ad64ea1ad11e1b877a1340a [2022-11-16 11:07:28,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:07:28,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:07:28,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:28,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:07:28,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:07:28,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758b02a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28, skipping insertion in model container [2022-11-16 11:07:28,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:07:28,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:07:29,197 WARN L229 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_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-16 11:07:29,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:29,488 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:07:29,501 WARN L229 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_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-16 11:07:29,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:29,635 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:07:29,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29 WrapperNode [2022-11-16 11:07:29,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:29,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:29,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:07:29,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:07:29,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,693 INFO L138 Inliner]: procedures = 180, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-16 11:07:29,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:29,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:07:29,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:07:29,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:07:29,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:07:29,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:07:29,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:07:29,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:07:29,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (1/1) ... [2022-11-16 11:07:29,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:29,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:07:29,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:07:29,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:07:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:07:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:07:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:07:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:07:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 11:07:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:07:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:07:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:07:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:07:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:07:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:07:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:07:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 11:07:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 11:07:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:07:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:07:29,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:07:29,858 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:07:30,100 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:07:30,108 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:07:30,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:07:30,866 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:07:30,866 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:07:30,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:30 BoogieIcfgContainer [2022-11-16 11:07:30,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:07:30,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:07:30,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:07:30,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:07:30,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:07:28" (1/3) ... [2022-11-16 11:07:30,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b1ea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:30, skipping insertion in model container [2022-11-16 11:07:30,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:29" (2/3) ... [2022-11-16 11:07:30,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b1ea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:30, skipping insertion in model container [2022-11-16 11:07:30,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:30" (3/3) ... [2022-11-16 11:07:30,881 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-16 11:07:30,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:07:30,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-16 11:07:30,904 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:07:31,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:07:31,081 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:07:31,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-16 11:07:31,104 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-16 11:07:31,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-11-16 11:07:31,231 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-11-16 11:07:31,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:31,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-11-16 11:07:31,245 INFO L119 LiptonReduction]: Number of co-enabled transitions 3644 [2022-11-16 11:07:41,502 INFO L134 LiptonReduction]: Checked pairs total: 10251 [2022-11-16 11:07:41,503 INFO L136 LiptonReduction]: Total number of compositions: 139 [2022-11-16 11:07:41,513 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 108 flow [2022-11-16 11:07:41,878 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5498 states, 5479 states have (on average 4.097280525643366) internal successors, (22449), 5497 states have internal predecessors, (22449), 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) [2022-11-16 11:07:41,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:07:41,911 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ac66df1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:07:41,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-16 11:07:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 5498 states, 5479 states have (on average 4.097280525643366) internal successors, (22449), 5497 states have internal predecessors, (22449), 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) [2022-11-16 11:07:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:07:41,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:41,936 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:07:41,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:41,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:41,948 INFO L85 PathProgramCache]: Analyzing trace with hash 623, now seen corresponding path program 1 times [2022-11-16 11:07:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:41,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737042571] [2022-11-16 11:07:41,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:41,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:41,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:41,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:07:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:42,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:07:42,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:42,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:42,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:42,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737042571] [2022-11-16 11:07:42,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737042571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:42,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:42,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:07:42,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340360390] [2022-11-16 11:07:42,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:42,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:07:42,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:07:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:07:42,134 INFO L87 Difference]: Start difference. First operand has 5498 states, 5479 states have (on average 4.097280525643366) internal successors, (22449), 5497 states have internal predecessors, (22449), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 11:07:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:42,549 INFO L93 Difference]: Finished difference Result 5124 states and 20487 transitions. [2022-11-16 11:07:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:07:42,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-16 11:07:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:42,673 INFO L225 Difference]: With dead ends: 5124 [2022-11-16 11:07:42,675 INFO L226 Difference]: Without dead ends: 5124 [2022-11-16 11:07:42,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:07:42,680 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:42,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:07:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2022-11-16 11:07:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 5124. [2022-11-16 11:07:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 5119 states have (on average 4.002148857198671) internal successors, (20487), 5123 states have internal predecessors, (20487), 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) [2022-11-16 11:07:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 20487 transitions. [2022-11-16 11:07:43,053 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 20487 transitions. Word has length 1 [2022-11-16 11:07:43,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:43,054 INFO L495 AbstractCegarLoop]: Abstraction has 5124 states and 20487 transitions. [2022-11-16 11:07:43,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 11:07:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 20487 transitions. [2022-11-16 11:07:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:07:43,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:43,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:07:43,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:43,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:43,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash 611269, now seen corresponding path program 1 times [2022-11-16 11:07:43,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:43,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83010488] [2022-11-16 11:07:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:43,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:43,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:43,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:43,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:07:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:43,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:07:43,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:43,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:43,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:43,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83010488] [2022-11-16 11:07:43,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83010488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:43,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:43,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:07:43,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525075746] [2022-11-16 11:07:43,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:43,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:07:43,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:43,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:07:43,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:43,434 INFO L87 Difference]: Start difference. First operand 5124 states and 20487 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:07:43,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:43,679 INFO L93 Difference]: Finished difference Result 4187 states and 16550 transitions. [2022-11-16 11:07:43,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:07:43,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-16 11:07:43,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:43,712 INFO L225 Difference]: With dead ends: 4187 [2022-11-16 11:07:43,713 INFO L226 Difference]: Without dead ends: 4062 [2022-11-16 11:07:43,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:43,714 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:43,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:43,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2022-11-16 11:07:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4062. [2022-11-16 11:07:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4062 states, 4060 states have (on average 3.9716748768472905) internal successors, (16125), 4061 states have internal predecessors, (16125), 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) [2022-11-16 11:07:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4062 states to 4062 states and 16125 transitions. [2022-11-16 11:07:44,048 INFO L78 Accepts]: Start accepts. Automaton has 4062 states and 16125 transitions. Word has length 3 [2022-11-16 11:07:44,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:44,051 INFO L495 AbstractCegarLoop]: Abstraction has 4062 states and 16125 transitions. [2022-11-16 11:07:44,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:07:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4062 states and 16125 transitions. [2022-11-16 11:07:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:07:44,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:44,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:44,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:44,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:44,274 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1472964744, now seen corresponding path program 1 times [2022-11-16 11:07:44,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:44,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837175228] [2022-11-16 11:07:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:44,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:44,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:44,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:44,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 11:07:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:44,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:07:44,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:44,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:44,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:44,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837175228] [2022-11-16 11:07:44,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837175228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:44,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:44,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:07:44,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252156050] [2022-11-16 11:07:44,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:44,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:07:44,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:44,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:07:44,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:07:44,479 INFO L87 Difference]: Start difference. First operand 4062 states and 16125 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-16 11:07:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:44,739 INFO L93 Difference]: Finished difference Result 3407 states and 11981 transitions. [2022-11-16 11:07:44,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:07:44,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-16 11:07:44,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:44,777 INFO L225 Difference]: With dead ends: 3407 [2022-11-16 11:07:44,777 INFO L226 Difference]: Without dead ends: 2782 [2022-11-16 11:07:44,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:44,778 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 58 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:44,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 9 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-11-16 11:07:44,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2782. [2022-11-16 11:07:44,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2780 states have (on average 3.4982014388489207) internal successors, (9725), 2781 states have internal predecessors, (9725), 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) [2022-11-16 11:07:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 9725 transitions. [2022-11-16 11:07:45,014 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 9725 transitions. Word has length 12 [2022-11-16 11:07:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:45,014 INFO L495 AbstractCegarLoop]: Abstraction has 2782 states and 9725 transitions. [2022-11-16 11:07:45,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-16 11:07:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 9725 transitions. [2022-11-16 11:07:45,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:07:45,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:45,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:45,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:45,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:45,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:45,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash 590120404, now seen corresponding path program 1 times [2022-11-16 11:07:45,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:45,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398809572] [2022-11-16 11:07:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:45,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:45,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:45,246 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:45,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 11:07:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:45,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:07:45,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:45,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:45,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:45,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:45,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398809572] [2022-11-16 11:07:45,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398809572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:45,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:45,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:45,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392790518] [2022-11-16 11:07:45,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:45,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:07:45,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:45,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:07:45,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:45,466 INFO L87 Difference]: Start difference. First operand 2782 states and 9725 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2022-11-16 11:07:45,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:45,760 INFO L93 Difference]: Finished difference Result 1871 states and 5837 transitions. [2022-11-16 11:07:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:07:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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 [2022-11-16 11:07:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:45,802 INFO L225 Difference]: With dead ends: 1871 [2022-11-16 11:07:45,803 INFO L226 Difference]: Without dead ends: 1502 [2022-11-16 11:07:45,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:45,804 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 93 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:45,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 15 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:45,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-11-16 11:07:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1502. [2022-11-16 11:07:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1500 states have (on average 3.07) internal successors, (4605), 1501 states have internal predecessors, (4605), 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) [2022-11-16 11:07:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4605 transitions. [2022-11-16 11:07:45,865 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4605 transitions. Word has length 16 [2022-11-16 11:07:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:45,865 INFO L495 AbstractCegarLoop]: Abstraction has 1502 states and 4605 transitions. [2022-11-16 11:07:45,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2022-11-16 11:07:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4605 transitions. [2022-11-16 11:07:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:07:45,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:45,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:45,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:46,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:46,085 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash 691595213, now seen corresponding path program 1 times [2022-11-16 11:07:46,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:46,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453087229] [2022-11-16 11:07:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:46,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:46,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 11:07:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:46,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:07:46,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:46,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:46,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:46,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453087229] [2022-11-16 11:07:46,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453087229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:46,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:46,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256932071] [2022-11-16 11:07:46,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:46,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:46,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:46,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:46,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:46,365 INFO L87 Difference]: Start difference. First operand 1502 states and 4605 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2022-11-16 11:07:46,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:46,741 INFO L93 Difference]: Finished difference Result 1135 states and 3469 transitions. [2022-11-16 11:07:46,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:46,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) Word has length 20 [2022-11-16 11:07:46,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:46,749 INFO L225 Difference]: With dead ends: 1135 [2022-11-16 11:07:46,749 INFO L226 Difference]: Without dead ends: 1022 [2022-11-16 11:07:46,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:07:46,750 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:46,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 30 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:07:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-16 11:07:46,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1022. [2022-11-16 11:07:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1020 states have (on average 3.1029411764705883) internal successors, (3165), 1021 states have internal predecessors, (3165), 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) [2022-11-16 11:07:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 3165 transitions. [2022-11-16 11:07:46,802 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 3165 transitions. Word has length 20 [2022-11-16 11:07:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:46,803 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 3165 transitions. [2022-11-16 11:07:46,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2022-11-16 11:07:46,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 3165 transitions. [2022-11-16 11:07:46,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:07:46,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:46,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:46,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:47,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:47,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash -426287513, now seen corresponding path program 1 times [2022-11-16 11:07:47,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:47,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605664824] [2022-11-16 11:07:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:47,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:47,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:47,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:47,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 11:07:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:47,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:07:47,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:47,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:47,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:47,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605664824] [2022-11-16 11:07:47,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605664824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:47,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:47,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:07:47,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768770135] [2022-11-16 11:07:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:47,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:07:47,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:47,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:07:47,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:47,312 INFO L87 Difference]: Start difference. First operand 1022 states and 3165 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-16 11:07:47,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:47,753 INFO L93 Difference]: Finished difference Result 959 states and 3037 transitions. [2022-11-16 11:07:47,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:07:47,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2022-11-16 11:07:47,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:47,758 INFO L225 Difference]: With dead ends: 959 [2022-11-16 11:07:47,758 INFO L226 Difference]: Without dead ends: 942 [2022-11-16 11:07:47,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:07:47,760 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 135 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:47,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 48 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:07:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-11-16 11:07:47,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-11-16 11:07:47,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 3.1968085106382977) internal successors, (3005), 941 states have internal predecessors, (3005), 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) [2022-11-16 11:07:47,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 3005 transitions. [2022-11-16 11:07:47,791 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 3005 transitions. Word has length 24 [2022-11-16 11:07:47,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:47,791 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 3005 transitions. [2022-11-16 11:07:47,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-16 11:07:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 3005 transitions. [2022-11-16 11:07:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:47,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:47,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:47,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:48,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:48,008 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:48,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash 194966510, now seen corresponding path program 1 times [2022-11-16 11:07:48,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:48,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378786037] [2022-11-16 11:07:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:48,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:48,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:48,011 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:48,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 11:07:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:48,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:07:48,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:48,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:48,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:48,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378786037] [2022-11-16 11:07:48,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378786037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:48,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:48,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:48,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385748381] [2022-11-16 11:07:48,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:48,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:07:48,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:48,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:07:48,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:07:48,282 INFO L87 Difference]: Start difference. First operand 942 states and 3005 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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) [2022-11-16 11:07:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:48,538 INFO L93 Difference]: Finished difference Result 1366 states and 4300 transitions. [2022-11-16 11:07:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:07:48,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:48,545 INFO L225 Difference]: With dead ends: 1366 [2022-11-16 11:07:48,545 INFO L226 Difference]: Without dead ends: 1366 [2022-11-16 11:07:48,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:48,546 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 35 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:48,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 16 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:07:48,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2022-11-16 11:07:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1365. [2022-11-16 11:07:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1363 states have (on average 3.1548055759354368) internal successors, (4300), 1364 states have internal predecessors, (4300), 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) [2022-11-16 11:07:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 4300 transitions. [2022-11-16 11:07:48,611 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 4300 transitions. Word has length 28 [2022-11-16 11:07:48,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:48,611 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 4300 transitions. [2022-11-16 11:07:48,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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) [2022-11-16 11:07:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 4300 transitions. [2022-11-16 11:07:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:48,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:48,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:48,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:48,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:48,852 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:48,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash 194966577, now seen corresponding path program 1 times [2022-11-16 11:07:48,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:48,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560431370] [2022-11-16 11:07:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:48,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:48,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:48,855 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:48,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 11:07:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:49,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:07:49,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:49,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:49,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:49,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560431370] [2022-11-16 11:07:49,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560431370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:49,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:49,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:49,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588038433] [2022-11-16 11:07:49,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:49,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:49,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:49,757 INFO L87 Difference]: Start difference. First operand 1365 states and 4300 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:49,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:49,959 INFO L93 Difference]: Finished difference Result 2475 states and 7807 transitions. [2022-11-16 11:07:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:49,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:49,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:49,970 INFO L225 Difference]: With dead ends: 2475 [2022-11-16 11:07:49,970 INFO L226 Difference]: Without dead ends: 2444 [2022-11-16 11:07:49,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:49,971 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:49,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 43 Unchecked, 0.2s Time] [2022-11-16 11:07:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2022-11-16 11:07:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 1382. [2022-11-16 11:07:50,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1380 states have (on average 3.1268115942028984) internal successors, (4315), 1381 states have internal predecessors, (4315), 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) [2022-11-16 11:07:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 4315 transitions. [2022-11-16 11:07:50,027 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 4315 transitions. Word has length 28 [2022-11-16 11:07:50,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:50,029 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 4315 transitions. [2022-11-16 11:07:50,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 4315 transitions. [2022-11-16 11:07:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:50,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:50,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:50,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:50,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:50,249 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:50,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:50,250 INFO L85 PathProgramCache]: Analyzing trace with hash -200661157, now seen corresponding path program 2 times [2022-11-16 11:07:50,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:50,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69398028] [2022-11-16 11:07:50,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:07:50,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:50,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:50,251 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:50,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-16 11:07:50,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:07:50,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:50,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:07:50,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:51,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:51,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:51,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69398028] [2022-11-16 11:07:51,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69398028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:51,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:51,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:51,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889923506] [2022-11-16 11:07:51,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:51,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:51,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:51,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:51,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:51,229 INFO L87 Difference]: Start difference. First operand 1382 states and 4315 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:51,327 INFO L93 Difference]: Finished difference Result 2627 states and 8283 transitions. [2022-11-16 11:07:51,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:51,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:51,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:51,339 INFO L225 Difference]: With dead ends: 2627 [2022-11-16 11:07:51,339 INFO L226 Difference]: Without dead ends: 2576 [2022-11-16 11:07:51,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:51,341 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:51,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 37 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 63 Unchecked, 0.1s Time] [2022-11-16 11:07:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-11-16 11:07:51,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 1423. [2022-11-16 11:07:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1421 states have (on average 3.107670654468684) internal successors, (4416), 1422 states have internal predecessors, (4416), 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) [2022-11-16 11:07:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 4416 transitions. [2022-11-16 11:07:51,411 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 4416 transitions. Word has length 28 [2022-11-16 11:07:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:51,412 INFO L495 AbstractCegarLoop]: Abstraction has 1423 states and 4416 transitions. [2022-11-16 11:07:51,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 4416 transitions. [2022-11-16 11:07:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:51,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:51,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:51,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:51,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:51,633 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:51,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1774273851, now seen corresponding path program 3 times [2022-11-16 11:07:51,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:51,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783900312] [2022-11-16 11:07:51,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:07:51,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:51,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:51,635 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:51,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-16 11:07:51,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:07:51,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:51,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:07:51,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:52,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:52,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:52,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783900312] [2022-11-16 11:07:52,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783900312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:52,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:52,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:52,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485759052] [2022-11-16 11:07:52,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:52,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:52,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:52,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:52,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:52,429 INFO L87 Difference]: Start difference. First operand 1423 states and 4416 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:52,622 INFO L93 Difference]: Finished difference Result 2560 states and 7971 transitions. [2022-11-16 11:07:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:52,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:52,632 INFO L225 Difference]: With dead ends: 2560 [2022-11-16 11:07:52,632 INFO L226 Difference]: Without dead ends: 2544 [2022-11-16 11:07:52,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:52,633 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:52,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 50 Unchecked, 0.2s Time] [2022-11-16 11:07:52,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2022-11-16 11:07:52,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1417. [2022-11-16 11:07:52,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1415 states have (on average 3.111660777385159) internal successors, (4403), 1416 states have internal predecessors, (4403), 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) [2022-11-16 11:07:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 4403 transitions. [2022-11-16 11:07:52,699 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 4403 transitions. Word has length 28 [2022-11-16 11:07:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:52,699 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 4403 transitions. [2022-11-16 11:07:52,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:52,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 4403 transitions. [2022-11-16 11:07:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:52,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:52,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:52,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:52,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:52,930 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1329174325, now seen corresponding path program 4 times [2022-11-16 11:07:52,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426235837] [2022-11-16 11:07:52,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:07:52,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:52,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:52,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:52,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-16 11:07:53,190 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:07:53,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:53,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:07:53,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:53,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:53,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:53,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426235837] [2022-11-16 11:07:53,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426235837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:53,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:53,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:53,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829069429] [2022-11-16 11:07:53,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:53,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:53,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:53,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:53,863 INFO L87 Difference]: Start difference. First operand 1417 states and 4403 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:53,976 INFO L93 Difference]: Finished difference Result 2692 states and 8433 transitions. [2022-11-16 11:07:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:53,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:53,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:53,988 INFO L225 Difference]: With dead ends: 2692 [2022-11-16 11:07:53,988 INFO L226 Difference]: Without dead ends: 2386 [2022-11-16 11:07:53,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:53,990 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:53,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 37 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 84 Unchecked, 0.1s Time] [2022-11-16 11:07:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-11-16 11:07:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1685. [2022-11-16 11:07:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1683 states have (on average 3.1313131313131315) internal successors, (5270), 1684 states have internal predecessors, (5270), 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) [2022-11-16 11:07:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 5270 transitions. [2022-11-16 11:07:54,065 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 5270 transitions. Word has length 28 [2022-11-16 11:07:54,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:54,067 INFO L495 AbstractCegarLoop]: Abstraction has 1685 states and 5270 transitions. [2022-11-16 11:07:54,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 5270 transitions. [2022-11-16 11:07:54,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:54,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:54,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:54,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:54,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:54,288 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:54,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:54,288 INFO L85 PathProgramCache]: Analyzing trace with hash 253943093, now seen corresponding path program 5 times [2022-11-16 11:07:54,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:54,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229367618] [2022-11-16 11:07:54,289 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:07:54,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:54,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:54,291 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:54,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-16 11:07:54,563 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:07:54,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:54,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:07:54,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:55,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:55,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:55,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229367618] [2022-11-16 11:07:55,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229367618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:55,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:55,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708184865] [2022-11-16 11:07:55,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:55,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:55,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:55,162 INFO L87 Difference]: Start difference. First operand 1685 states and 5270 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:55,392 INFO L93 Difference]: Finished difference Result 2942 states and 9177 transitions. [2022-11-16 11:07:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:55,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:55,405 INFO L225 Difference]: With dead ends: 2942 [2022-11-16 11:07:55,405 INFO L226 Difference]: Without dead ends: 2826 [2022-11-16 11:07:55,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:55,406 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 19 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:55,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 36 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 43 Unchecked, 0.2s Time] [2022-11-16 11:07:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2022-11-16 11:07:55,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1692. [2022-11-16 11:07:55,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1690 states have (on average 3.1118343195266274) internal successors, (5259), 1691 states have internal predecessors, (5259), 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) [2022-11-16 11:07:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 5259 transitions. [2022-11-16 11:07:55,474 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 5259 transitions. Word has length 28 [2022-11-16 11:07:55,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:55,474 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 5259 transitions. [2022-11-16 11:07:55,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:55,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 5259 transitions. [2022-11-16 11:07:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:55,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:55,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:55,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-16 11:07:55,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:55,693 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:55,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:55,693 INFO L85 PathProgramCache]: Analyzing trace with hash -104442374, now seen corresponding path program 2 times [2022-11-16 11:07:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:55,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355613542] [2022-11-16 11:07:55,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:07:55,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:55,695 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:55,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-16 11:07:55,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:07:55,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:55,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:07:55,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:56,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:56,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:56,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355613542] [2022-11-16 11:07:56,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355613542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:56,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:56,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:07:56,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474401226] [2022-11-16 11:07:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:56,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:07:56,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:07:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:07:56,303 INFO L87 Difference]: Start difference. First operand 1692 states and 5259 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 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) [2022-11-16 11:07:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:56,861 INFO L93 Difference]: Finished difference Result 2772 states and 8176 transitions. [2022-11-16 11:07:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:07:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 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) Word has length 28 [2022-11-16 11:07:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:56,869 INFO L225 Difference]: With dead ends: 2772 [2022-11-16 11:07:56,870 INFO L226 Difference]: Without dead ends: 2634 [2022-11-16 11:07:56,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:07:56,871 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 76 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:56,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 44 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:07:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2022-11-16 11:07:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1879. [2022-11-16 11:07:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1877 states have (on average 3.0980287693127333) internal successors, (5815), 1878 states have internal predecessors, (5815), 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) [2022-11-16 11:07:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 5815 transitions. [2022-11-16 11:07:56,935 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 5815 transitions. Word has length 28 [2022-11-16 11:07:56,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:56,935 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 5815 transitions. [2022-11-16 11:07:56,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 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) [2022-11-16 11:07:56,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 5815 transitions. [2022-11-16 11:07:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:56,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:56,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:56,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:57,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:57,154 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:57,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:57,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1426722340, now seen corresponding path program 3 times [2022-11-16 11:07:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:57,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960425191] [2022-11-16 11:07:57,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:07:57,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:57,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:57,156 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:57,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-16 11:07:57,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:07:57,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:57,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:07:57,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:57,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:57,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:57,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960425191] [2022-11-16 11:07:57,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960425191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:57,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:57,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:07:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564057848] [2022-11-16 11:07:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:57,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:07:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:07:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:07:57,808 INFO L87 Difference]: Start difference. First operand 1879 states and 5815 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-16 11:07:58,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:58,277 INFO L93 Difference]: Finished difference Result 2093 states and 6352 transitions. [2022-11-16 11:07:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:07:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 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) Word has length 28 [2022-11-16 11:07:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:58,283 INFO L225 Difference]: With dead ends: 2093 [2022-11-16 11:07:58,283 INFO L226 Difference]: Without dead ends: 1988 [2022-11-16 11:07:58,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:07:58,284 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 78 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:58,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 41 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:07:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-11-16 11:07:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1548. [2022-11-16 11:07:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1546 states have (on average 3.1261319534282017) internal successors, (4833), 1547 states have internal predecessors, (4833), 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) [2022-11-16 11:07:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 4833 transitions. [2022-11-16 11:07:58,344 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 4833 transitions. Word has length 28 [2022-11-16 11:07:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:58,344 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 4833 transitions. [2022-11-16 11:07:58,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-16 11:07:58,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 4833 transitions. [2022-11-16 11:07:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:58,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:58,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:58,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-16 11:07:58,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:58,564 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:58,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1001295603, now seen corresponding path program 6 times [2022-11-16 11:07:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:58,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514762170] [2022-11-16 11:07:58,565 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:07:58,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:58,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:58,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:58,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-16 11:07:58,805 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 11:07:58,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:07:58,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:07:58,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:07:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:59,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:07:59,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:07:59,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514762170] [2022-11-16 11:07:59,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514762170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:59,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:59,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:07:59,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25630316] [2022-11-16 11:07:59,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:59,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:59,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:07:59,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:59,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:59,479 INFO L87 Difference]: Start difference. First operand 1548 states and 4833 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:59,584 INFO L93 Difference]: Finished difference Result 2527 states and 7982 transitions. [2022-11-16 11:07:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:59,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:07:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:59,589 INFO L225 Difference]: With dead ends: 2527 [2022-11-16 11:07:59,589 INFO L226 Difference]: Without dead ends: 2401 [2022-11-16 11:07:59,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:59,590 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:59,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 62 Unchecked, 0.1s Time] [2022-11-16 11:07:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2022-11-16 11:07:59,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1553. [2022-11-16 11:07:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1551 states have (on average 3.1199226305609282) internal successors, (4839), 1552 states have internal predecessors, (4839), 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) [2022-11-16 11:07:59,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 4839 transitions. [2022-11-16 11:07:59,640 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 4839 transitions. Word has length 28 [2022-11-16 11:07:59,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:59,640 INFO L495 AbstractCegarLoop]: Abstraction has 1553 states and 4839 transitions. [2022-11-16 11:07:59,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:07:59,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 4839 transitions. [2022-11-16 11:07:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:07:59,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:59,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:59,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:07:59,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:59,858 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:07:59,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash -289357005, now seen corresponding path program 7 times [2022-11-16 11:07:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:07:59,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287646698] [2022-11-16 11:07:59,859 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:07:59,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:07:59,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:07:59,860 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:07:59,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-16 11:08:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:00,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:00,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:00,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:00,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:00,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287646698] [2022-11-16 11:08:00,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287646698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:00,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:00,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:00,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297314435] [2022-11-16 11:08:00,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:00,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:00,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:00,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:00,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:00,718 INFO L87 Difference]: Start difference. First operand 1553 states and 4839 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:00,928 INFO L93 Difference]: Finished difference Result 2588 states and 8126 transitions. [2022-11-16 11:08:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:00,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:00,935 INFO L225 Difference]: With dead ends: 2588 [2022-11-16 11:08:00,935 INFO L226 Difference]: Without dead ends: 2550 [2022-11-16 11:08:00,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:00,936 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:00,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 55 Unchecked, 0.2s Time] [2022-11-16 11:08:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2022-11-16 11:08:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 1548. [2022-11-16 11:08:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1546 states have (on average 3.1209573091849934) internal successors, (4825), 1547 states have internal predecessors, (4825), 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) [2022-11-16 11:08:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 4825 transitions. [2022-11-16 11:08:00,993 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 4825 transitions. Word has length 28 [2022-11-16 11:08:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:00,993 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 4825 transitions. [2022-11-16 11:08:00,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 4825 transitions. [2022-11-16 11:08:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:01,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:01,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:01,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:01,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:01,220 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:01,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:01,221 INFO L85 PathProgramCache]: Analyzing trace with hash -738034135, now seen corresponding path program 8 times [2022-11-16 11:08:01,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:01,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243625584] [2022-11-16 11:08:01,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:08:01,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:01,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:01,223 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:01,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-16 11:08:01,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:01,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:01,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:01,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:02,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:02,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:02,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243625584] [2022-11-16 11:08:02,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243625584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:02,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:02,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:02,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841276332] [2022-11-16 11:08:02,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:02,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:02,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:02,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:02,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:02,066 INFO L87 Difference]: Start difference. First operand 1548 states and 4825 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:02,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:02,179 INFO L93 Difference]: Finished difference Result 2309 states and 7332 transitions. [2022-11-16 11:08:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:02,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:02,184 INFO L225 Difference]: With dead ends: 2309 [2022-11-16 11:08:02,184 INFO L226 Difference]: Without dead ends: 2238 [2022-11-16 11:08:02,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:02,192 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:02,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 60 Unchecked, 0.1s Time] [2022-11-16 11:08:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-11-16 11:08:02,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 1542. [2022-11-16 11:08:02,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1540 states have (on average 3.1253246753246753) internal successors, (4813), 1541 states have internal predecessors, (4813), 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) [2022-11-16 11:08:02,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 4813 transitions. [2022-11-16 11:08:02,255 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 4813 transitions. Word has length 28 [2022-11-16 11:08:02,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:02,256 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 4813 transitions. [2022-11-16 11:08:02,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 4813 transitions. [2022-11-16 11:08:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:02,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:02,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:02,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:02,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:02,496 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:02,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1243535289, now seen corresponding path program 9 times [2022-11-16 11:08:02,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:02,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875607053] [2022-11-16 11:08:02,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:08:02,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:02,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:02,498 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:02,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-16 11:08:02,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:08:02,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:02,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:02,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:03,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:03,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:03,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875607053] [2022-11-16 11:08:03,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875607053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:03,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:03,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:03,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005097790] [2022-11-16 11:08:03,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:03,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:03,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:03,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:03,362 INFO L87 Difference]: Start difference. First operand 1542 states and 4813 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:03,480 INFO L93 Difference]: Finished difference Result 2529 states and 7998 transitions. [2022-11-16 11:08:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:03,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:03,488 INFO L225 Difference]: With dead ends: 2529 [2022-11-16 11:08:03,488 INFO L226 Difference]: Without dead ends: 2406 [2022-11-16 11:08:03,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:03,489 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:03,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 37 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 72 Unchecked, 0.1s Time] [2022-11-16 11:08:03,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-11-16 11:08:03,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 1546. [2022-11-16 11:08:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1544 states have (on average 3.1211139896373057) internal successors, (4819), 1545 states have internal predecessors, (4819), 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) [2022-11-16 11:08:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 4819 transitions. [2022-11-16 11:08:03,539 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 4819 transitions. Word has length 28 [2022-11-16 11:08:03,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:03,540 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 4819 transitions. [2022-11-16 11:08:03,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:03,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 4819 transitions. [2022-11-16 11:08:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:03,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:03,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:03,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-11-16 11:08:03,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:03,757 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1312102269, now seen corresponding path program 10 times [2022-11-16 11:08:03,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:03,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174626088] [2022-11-16 11:08:03,758 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:08:03,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:03,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:03,760 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:03,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-16 11:08:04,027 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:08:04,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:04,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:04,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:04,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:04,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:04,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:04,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174626088] [2022-11-16 11:08:04,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174626088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:04,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:04,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:04,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064389279] [2022-11-16 11:08:04,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:04,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:04,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:04,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:04,671 INFO L87 Difference]: Start difference. First operand 1546 states and 4819 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:04,764 INFO L93 Difference]: Finished difference Result 2617 states and 8201 transitions. [2022-11-16 11:08:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:04,768 INFO L225 Difference]: With dead ends: 2617 [2022-11-16 11:08:04,768 INFO L226 Difference]: Without dead ends: 1948 [2022-11-16 11:08:04,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:04,769 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:04,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 37 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 100 Unchecked, 0.1s Time] [2022-11-16 11:08:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2022-11-16 11:08:04,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1800. [2022-11-16 11:08:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1798 states have (on average 3.1078976640711904) internal successors, (5588), 1799 states have internal predecessors, (5588), 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) [2022-11-16 11:08:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 5588 transitions. [2022-11-16 11:08:04,821 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 5588 transitions. Word has length 28 [2022-11-16 11:08:04,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:04,823 INFO L495 AbstractCegarLoop]: Abstraction has 1800 states and 5588 transitions. [2022-11-16 11:08:04,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 5588 transitions. [2022-11-16 11:08:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:04,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:04,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:04,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:05,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:05,041 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:05,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:05,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1393974541, now seen corresponding path program 11 times [2022-11-16 11:08:05,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:05,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746900217] [2022-11-16 11:08:05,042 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:08:05,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:05,043 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:05,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-16 11:08:05,275 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:05,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:05,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:05,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:05,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:05,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:05,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746900217] [2022-11-16 11:08:05,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746900217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:05,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:05,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717857451] [2022-11-16 11:08:05,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:05,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:05,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:05,827 INFO L87 Difference]: Start difference. First operand 1800 states and 5588 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:05,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:05,921 INFO L93 Difference]: Finished difference Result 2671 states and 8245 transitions. [2022-11-16 11:08:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:05,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:05,927 INFO L225 Difference]: With dead ends: 2671 [2022-11-16 11:08:05,927 INFO L226 Difference]: Without dead ends: 2514 [2022-11-16 11:08:05,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:05,928 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:05,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 75 Unchecked, 0.1s Time] [2022-11-16 11:08:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2514 states. [2022-11-16 11:08:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2514 to 1839. [2022-11-16 11:08:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1837 states have (on average 3.1023407729994554) internal successors, (5699), 1838 states have internal predecessors, (5699), 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) [2022-11-16 11:08:05,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 5699 transitions. [2022-11-16 11:08:05,976 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 5699 transitions. Word has length 28 [2022-11-16 11:08:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:05,977 INFO L495 AbstractCegarLoop]: Abstraction has 1839 states and 5699 transitions. [2022-11-16 11:08:05,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 5699 transitions. [2022-11-16 11:08:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:05,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:05,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:06,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:06,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:06,195 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:06,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:06,195 INFO L85 PathProgramCache]: Analyzing trace with hash -371332215, now seen corresponding path program 12 times [2022-11-16 11:08:06,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:06,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117757245] [2022-11-16 11:08:06,196 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:08:06,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:06,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:06,197 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:06,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-16 11:08:06,404 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 11:08:06,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:06,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:06,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:06,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:06,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:06,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117757245] [2022-11-16 11:08:06,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117757245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:06,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:06,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:06,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149345697] [2022-11-16 11:08:06,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:06,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:06,925 INFO L87 Difference]: Start difference. First operand 1839 states and 5699 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:07,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:07,016 INFO L93 Difference]: Finished difference Result 2806 states and 8710 transitions. [2022-11-16 11:08:07,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:07,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:07,022 INFO L225 Difference]: With dead ends: 2806 [2022-11-16 11:08:07,022 INFO L226 Difference]: Without dead ends: 2191 [2022-11-16 11:08:07,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:07,023 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:07,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 37 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 77 Unchecked, 0.1s Time] [2022-11-16 11:08:07,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2022-11-16 11:08:07,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 1803. [2022-11-16 11:08:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1801 states have (on average 3.0916157690172126) internal successors, (5568), 1802 states have internal predecessors, (5568), 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) [2022-11-16 11:08:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 5568 transitions. [2022-11-16 11:08:07,068 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 5568 transitions. Word has length 28 [2022-11-16 11:08:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:07,070 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 5568 transitions. [2022-11-16 11:08:07,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 5568 transitions. [2022-11-16 11:08:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:07,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:07,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:07,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:07,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:07,287 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:07,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:07,287 INFO L85 PathProgramCache]: Analyzing trace with hash -902329173, now seen corresponding path program 13 times [2022-11-16 11:08:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:07,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075337300] [2022-11-16 11:08:07,288 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:08:07,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:07,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:07,289 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:07,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-16 11:08:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:07,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:07,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:08,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:08,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:08,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075337300] [2022-11-16 11:08:08,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075337300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:08,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:08,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007606289] [2022-11-16 11:08:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:08,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:08,031 INFO L87 Difference]: Start difference. First operand 1803 states and 5568 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:08,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:08,121 INFO L93 Difference]: Finished difference Result 2264 states and 6876 transitions. [2022-11-16 11:08:08,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:08,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:08,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:08,127 INFO L225 Difference]: With dead ends: 2264 [2022-11-16 11:08:08,127 INFO L226 Difference]: Without dead ends: 2139 [2022-11-16 11:08:08,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:08,128 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:08,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 37 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 77 Unchecked, 0.1s Time] [2022-11-16 11:08:08,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-11-16 11:08:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1807. [2022-11-16 11:08:08,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1805 states have (on average 3.0869806094182826) internal successors, (5572), 1806 states have internal predecessors, (5572), 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) [2022-11-16 11:08:08,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 5572 transitions. [2022-11-16 11:08:08,173 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 5572 transitions. Word has length 28 [2022-11-16 11:08:08,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:08,173 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 5572 transitions. [2022-11-16 11:08:08,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 5572 transitions. [2022-11-16 11:08:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:08,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:08,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:08,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:08,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:08,390 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:08,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:08,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1653308385, now seen corresponding path program 14 times [2022-11-16 11:08:08,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:08,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569900740] [2022-11-16 11:08:08,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:08:08,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:08,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:08,393 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:08,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-16 11:08:08,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:08,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:08,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:08,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:09,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:09,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:09,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569900740] [2022-11-16 11:08:09,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569900740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:09,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:09,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:09,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089318419] [2022-11-16 11:08:09,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:09,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:09,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:09,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:09,246 INFO L87 Difference]: Start difference. First operand 1807 states and 5572 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:09,453 INFO L93 Difference]: Finished difference Result 2890 states and 8956 transitions. [2022-11-16 11:08:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:09,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:09,462 INFO L225 Difference]: With dead ends: 2890 [2022-11-16 11:08:09,462 INFO L226 Difference]: Without dead ends: 2821 [2022-11-16 11:08:09,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:09,463 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:09,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 48 Unchecked, 0.2s Time] [2022-11-16 11:08:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2022-11-16 11:08:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 1801. [2022-11-16 11:08:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 3.086158977209561) internal successors, (5552), 1800 states have internal predecessors, (5552), 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) [2022-11-16 11:08:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 5552 transitions. [2022-11-16 11:08:09,522 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 5552 transitions. Word has length 28 [2022-11-16 11:08:09,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:09,522 INFO L495 AbstractCegarLoop]: Abstraction has 1801 states and 5552 transitions. [2022-11-16 11:08:09,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:09,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 5552 transitions. [2022-11-16 11:08:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:09,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:09,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:09,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:09,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:09,740 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:09,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:09,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1517358999, now seen corresponding path program 15 times [2022-11-16 11:08:09,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:09,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988842983] [2022-11-16 11:08:09,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:08:09,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:09,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:09,743 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:09,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-16 11:08:10,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:08:10,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:10,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:10,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:10,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:10,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:10,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988842983] [2022-11-16 11:08:10,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988842983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:10,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:10,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:10,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323739770] [2022-11-16 11:08:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:10,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:10,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:10,576 INFO L87 Difference]: Start difference. First operand 1801 states and 5552 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:10,658 INFO L93 Difference]: Finished difference Result 2651 states and 7965 transitions. [2022-11-16 11:08:10,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:10,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:10,666 INFO L225 Difference]: With dead ends: 2651 [2022-11-16 11:08:10,666 INFO L226 Difference]: Without dead ends: 2583 [2022-11-16 11:08:10,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:10,667 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:10,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 65 Unchecked, 0.1s Time] [2022-11-16 11:08:10,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2022-11-16 11:08:10,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 1829. [2022-11-16 11:08:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1827 states have (on average 3.0749863163656266) internal successors, (5618), 1828 states have internal predecessors, (5618), 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) [2022-11-16 11:08:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 5618 transitions. [2022-11-16 11:08:10,721 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 5618 transitions. Word has length 28 [2022-11-16 11:08:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:10,721 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 5618 transitions. [2022-11-16 11:08:10,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 5618 transitions. [2022-11-16 11:08:10,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:10,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:10,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:10,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:10,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:10,941 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:10,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:10,941 INFO L85 PathProgramCache]: Analyzing trace with hash -792195693, now seen corresponding path program 16 times [2022-11-16 11:08:10,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:10,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588545800] [2022-11-16 11:08:10,942 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:08:10,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:10,943 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:10,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-16 11:08:11,199 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:08:11,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:11,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:11,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:11,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:11,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:11,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588545800] [2022-11-16 11:08:11,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588545800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:11,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:11,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409667107] [2022-11-16 11:08:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:11,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:11,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:11,737 INFO L87 Difference]: Start difference. First operand 1829 states and 5618 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:11,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:11,912 INFO L93 Difference]: Finished difference Result 2996 states and 9294 transitions. [2022-11-16 11:08:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:11,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:11,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:11,920 INFO L225 Difference]: With dead ends: 2996 [2022-11-16 11:08:11,920 INFO L226 Difference]: Without dead ends: 2961 [2022-11-16 11:08:11,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:11,920 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:11,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 36 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 43 Unchecked, 0.2s Time] [2022-11-16 11:08:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-11-16 11:08:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1817. [2022-11-16 11:08:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1815 states have (on average 3.0760330578512396) internal successors, (5583), 1816 states have internal predecessors, (5583), 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) [2022-11-16 11:08:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 5583 transitions. [2022-11-16 11:08:11,974 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 5583 transitions. Word has length 28 [2022-11-16 11:08:11,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:11,974 INFO L495 AbstractCegarLoop]: Abstraction has 1817 states and 5583 transitions. [2022-11-16 11:08:11,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 5583 transitions. [2022-11-16 11:08:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:11,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:11,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:11,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:12,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:12,191 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -349082785, now seen corresponding path program 17 times [2022-11-16 11:08:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:12,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993858609] [2022-11-16 11:08:12,192 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:08:12,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:12,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:12,194 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:12,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-16 11:08:12,434 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:12,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:12,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:12,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:12,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:12,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:12,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993858609] [2022-11-16 11:08:12,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993858609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:12,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:12,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:12,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666203190] [2022-11-16 11:08:12,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:12,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:12,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:12,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:12,978 INFO L87 Difference]: Start difference. First operand 1817 states and 5583 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:13,150 INFO L93 Difference]: Finished difference Result 2948 states and 9139 transitions. [2022-11-16 11:08:13,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:13,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:13,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:13,156 INFO L225 Difference]: With dead ends: 2948 [2022-11-16 11:08:13,156 INFO L226 Difference]: Without dead ends: 2893 [2022-11-16 11:08:13,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:13,157 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:13,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 41 Unchecked, 0.2s Time] [2022-11-16 11:08:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2022-11-16 11:08:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1813. [2022-11-16 11:08:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1811 states have (on average 3.0706791827719493) internal successors, (5561), 1812 states have internal predecessors, (5561), 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) [2022-11-16 11:08:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 5561 transitions. [2022-11-16 11:08:13,196 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 5561 transitions. Word has length 28 [2022-11-16 11:08:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:13,196 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 5561 transitions. [2022-11-16 11:08:13,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:13,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 5561 transitions. [2022-11-16 11:08:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:13,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:13,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:13,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-16 11:08:13,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:13,415 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash -674511277, now seen corresponding path program 18 times [2022-11-16 11:08:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:13,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121404796] [2022-11-16 11:08:13,416 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:08:13,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:13,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:13,417 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:13,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-16 11:08:13,659 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 11:08:13,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:13,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:13,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:14,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:14,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:14,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121404796] [2022-11-16 11:08:14,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121404796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:14,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:14,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666305011] [2022-11-16 11:08:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:14,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:14,203 INFO L87 Difference]: Start difference. First operand 1813 states and 5561 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:14,279 INFO L93 Difference]: Finished difference Result 2639 states and 7968 transitions. [2022-11-16 11:08:14,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:14,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:14,286 INFO L225 Difference]: With dead ends: 2639 [2022-11-16 11:08:14,286 INFO L226 Difference]: Without dead ends: 2390 [2022-11-16 11:08:14,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:14,287 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:14,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 69 Unchecked, 0.1s Time] [2022-11-16 11:08:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-11-16 11:08:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1793. [2022-11-16 11:08:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1791 states have (on average 3.0681183696259073) internal successors, (5495), 1792 states have internal predecessors, (5495), 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) [2022-11-16 11:08:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 5495 transitions. [2022-11-16 11:08:14,336 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 5495 transitions. Word has length 28 [2022-11-16 11:08:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:14,336 INFO L495 AbstractCegarLoop]: Abstraction has 1793 states and 5495 transitions. [2022-11-16 11:08:14,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 5495 transitions. [2022-11-16 11:08:14,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:14,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:14,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:14,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:14,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:14,553 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:14,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1791579873, now seen corresponding path program 19 times [2022-11-16 11:08:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:14,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819197835] [2022-11-16 11:08:14,554 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:08:14,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:14,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:14,556 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:14,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-16 11:08:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:14,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:14,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:15,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:15,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:15,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819197835] [2022-11-16 11:08:15,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819197835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:15,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:15,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:15,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219512004] [2022-11-16 11:08:15,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:15,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:15,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:15,301 INFO L87 Difference]: Start difference. First operand 1793 states and 5495 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:15,386 INFO L93 Difference]: Finished difference Result 2248 states and 6790 transitions. [2022-11-16 11:08:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:15,390 INFO L225 Difference]: With dead ends: 2248 [2022-11-16 11:08:15,390 INFO L226 Difference]: Without dead ends: 2174 [2022-11-16 11:08:15,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:15,391 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:15,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 37 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 57 Unchecked, 0.1s Time] [2022-11-16 11:08:15,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-11-16 11:08:15,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1784. [2022-11-16 11:08:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1782 states have (on average 3.0735129068462403) internal successors, (5477), 1783 states have internal predecessors, (5477), 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) [2022-11-16 11:08:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 5477 transitions. [2022-11-16 11:08:15,434 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 5477 transitions. Word has length 28 [2022-11-16 11:08:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:15,434 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 5477 transitions. [2022-11-16 11:08:15,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 5477 transitions. [2022-11-16 11:08:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:15,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:15,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:15,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:15,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:15,651 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:15,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1772610089, now seen corresponding path program 20 times [2022-11-16 11:08:15,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:15,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636638142] [2022-11-16 11:08:15,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:08:15,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:15,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:15,653 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:15,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-16 11:08:15,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:15,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:15,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:15,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:16,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:16,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:16,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636638142] [2022-11-16 11:08:16,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636638142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:16,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:16,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:16,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728881472] [2022-11-16 11:08:16,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:16,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:16,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:16,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:16,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:16,400 INFO L87 Difference]: Start difference. First operand 1784 states and 5477 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:16,486 INFO L93 Difference]: Finished difference Result 2249 states and 6802 transitions. [2022-11-16 11:08:16,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:16,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:16,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:16,492 INFO L225 Difference]: With dead ends: 2249 [2022-11-16 11:08:16,492 INFO L226 Difference]: Without dead ends: 2122 [2022-11-16 11:08:16,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:16,493 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:16,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 55 Unchecked, 0.1s Time] [2022-11-16 11:08:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2022-11-16 11:08:16,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 1786. [2022-11-16 11:08:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1784 states have (on average 3.069506726457399) internal successors, (5476), 1785 states have internal predecessors, (5476), 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) [2022-11-16 11:08:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 5476 transitions. [2022-11-16 11:08:16,523 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 5476 transitions. Word has length 28 [2022-11-16 11:08:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:16,523 INFO L495 AbstractCegarLoop]: Abstraction has 1786 states and 5476 transitions. [2022-11-16 11:08:16,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 5476 transitions. [2022-11-16 11:08:16,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:16,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:16,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:16,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-11-16 11:08:16,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:16,740 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:16,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2003942891, now seen corresponding path program 21 times [2022-11-16 11:08:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:16,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673451907] [2022-11-16 11:08:16,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:08:16,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:16,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:16,742 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:16,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-16 11:08:16,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:08:16,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:16,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:16,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:17,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:17,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:17,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673451907] [2022-11-16 11:08:17,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673451907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:17,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:17,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:17,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698781087] [2022-11-16 11:08:17,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:17,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:17,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:17,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:17,465 INFO L87 Difference]: Start difference. First operand 1786 states and 5476 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:17,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:17,543 INFO L93 Difference]: Finished difference Result 2970 states and 9072 transitions. [2022-11-16 11:08:17,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:17,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:17,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:17,549 INFO L225 Difference]: With dead ends: 2970 [2022-11-16 11:08:17,549 INFO L226 Difference]: Without dead ends: 2871 [2022-11-16 11:08:17,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:17,550 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:17,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 61 Unchecked, 0.1s Time] [2022-11-16 11:08:17,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-11-16 11:08:17,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1818. [2022-11-16 11:08:17,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1816 states have (on average 3.0737885462555066) internal successors, (5582), 1817 states have internal predecessors, (5582), 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) [2022-11-16 11:08:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 5582 transitions. [2022-11-16 11:08:17,603 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 5582 transitions. Word has length 28 [2022-11-16 11:08:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:17,603 INFO L495 AbstractCegarLoop]: Abstraction has 1818 states and 5582 transitions. [2022-11-16 11:08:17,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 5582 transitions. [2022-11-16 11:08:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:17,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:17,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:17,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-16 11:08:17,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:17,809 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash 873837157, now seen corresponding path program 22 times [2022-11-16 11:08:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:17,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971552349] [2022-11-16 11:08:17,810 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:08:17,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:17,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:17,811 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:17,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-16 11:08:18,088 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:08:18,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:18,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:18,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:18,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:18,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:18,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971552349] [2022-11-16 11:08:18,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971552349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:18,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:18,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:18,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37943416] [2022-11-16 11:08:18,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:18,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:18,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:18,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:18,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:18,704 INFO L87 Difference]: Start difference. First operand 1818 states and 5582 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:18,794 INFO L93 Difference]: Finished difference Result 2744 states and 8492 transitions. [2022-11-16 11:08:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:18,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:18,799 INFO L225 Difference]: With dead ends: 2744 [2022-11-16 11:08:18,799 INFO L226 Difference]: Without dead ends: 2714 [2022-11-16 11:08:18,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:18,801 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:18,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 37 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 51 Unchecked, 0.1s Time] [2022-11-16 11:08:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2022-11-16 11:08:18,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 1819. [2022-11-16 11:08:18,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1817 states have (on average 3.0720968629609247) internal successors, (5582), 1818 states have internal predecessors, (5582), 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) [2022-11-16 11:08:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 5582 transitions. [2022-11-16 11:08:18,866 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 5582 transitions. Word has length 28 [2022-11-16 11:08:18,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:18,866 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 5582 transitions. [2022-11-16 11:08:18,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 5582 transitions. [2022-11-16 11:08:18,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:18,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:18,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:18,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:19,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:19,070 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1466368257, now seen corresponding path program 23 times [2022-11-16 11:08:19,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:19,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702866326] [2022-11-16 11:08:19,072 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:08:19,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:19,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:19,073 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:19,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-16 11:08:19,339 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:19,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:19,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:19,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:19,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:19,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:19,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:19,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702866326] [2022-11-16 11:08:19,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702866326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:19,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:19,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:19,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840488679] [2022-11-16 11:08:19,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:19,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:19,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:19,864 INFO L87 Difference]: Start difference. First operand 1819 states and 5582 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:19,941 INFO L93 Difference]: Finished difference Result 2797 states and 8635 transitions. [2022-11-16 11:08:19,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:19,947 INFO L225 Difference]: With dead ends: 2797 [2022-11-16 11:08:19,948 INFO L226 Difference]: Without dead ends: 2698 [2022-11-16 11:08:19,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:19,948 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:19,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 37 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 54 Unchecked, 0.1s Time] [2022-11-16 11:08:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-11-16 11:08:19,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1819. [2022-11-16 11:08:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1817 states have (on average 3.0709961474958725) internal successors, (5580), 1818 states have internal predecessors, (5580), 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) [2022-11-16 11:08:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 5580 transitions. [2022-11-16 11:08:20,000 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 5580 transitions. Word has length 28 [2022-11-16 11:08:20,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:20,000 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 5580 transitions. [2022-11-16 11:08:20,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:20,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 5580 transitions. [2022-11-16 11:08:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:20,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:20,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:20,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-16 11:08:20,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:20,206 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:20,207 INFO L85 PathProgramCache]: Analyzing trace with hash 659064815, now seen corresponding path program 24 times [2022-11-16 11:08:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:20,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077601708] [2022-11-16 11:08:20,207 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:08:20,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:20,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:20,209 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:20,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-16 11:08:20,488 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 11:08:20,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:20,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:20,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:21,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:21,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077601708] [2022-11-16 11:08:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077601708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:21,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:21,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192286301] [2022-11-16 11:08:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:21,005 INFO L87 Difference]: Start difference. First operand 1819 states and 5580 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:21,192 INFO L93 Difference]: Finished difference Result 2986 states and 9256 transitions. [2022-11-16 11:08:21,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:21,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:21,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:21,198 INFO L225 Difference]: With dead ends: 2986 [2022-11-16 11:08:21,198 INFO L226 Difference]: Without dead ends: 2928 [2022-11-16 11:08:21,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:21,199 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:21,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 41 Unchecked, 0.2s Time] [2022-11-16 11:08:21,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2022-11-16 11:08:21,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1810. [2022-11-16 11:08:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1808 states have (on average 3.0702433628318584) internal successors, (5551), 1809 states have internal predecessors, (5551), 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) [2022-11-16 11:08:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 5551 transitions. [2022-11-16 11:08:21,249 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 5551 transitions. Word has length 28 [2022-11-16 11:08:21,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:21,250 INFO L495 AbstractCegarLoop]: Abstraction has 1810 states and 5551 transitions. [2022-11-16 11:08:21,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 5551 transitions. [2022-11-16 11:08:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:21,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:21,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:21,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:21,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:21,467 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:21,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:21,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1317490975, now seen corresponding path program 25 times [2022-11-16 11:08:21,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:21,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360647726] [2022-11-16 11:08:21,468 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:08:21,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:21,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:21,469 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:21,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-16 11:08:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:21,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:21,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:22,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:22,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:22,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360647726] [2022-11-16 11:08:22,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360647726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:22,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:22,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:22,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710783660] [2022-11-16 11:08:22,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:22,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:22,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:22,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:22,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:22,253 INFO L87 Difference]: Start difference. First operand 1810 states and 5551 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:22,337 INFO L93 Difference]: Finished difference Result 2785 states and 8592 transitions. [2022-11-16 11:08:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:22,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:22,342 INFO L225 Difference]: With dead ends: 2785 [2022-11-16 11:08:22,342 INFO L226 Difference]: Without dead ends: 2590 [2022-11-16 11:08:22,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:22,343 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:22,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 37 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 75 Unchecked, 0.1s Time] [2022-11-16 11:08:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2022-11-16 11:08:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1810. [2022-11-16 11:08:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1808 states have (on average 3.0680309734513274) internal successors, (5547), 1809 states have internal predecessors, (5547), 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) [2022-11-16 11:08:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 5547 transitions. [2022-11-16 11:08:22,373 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 5547 transitions. Word has length 28 [2022-11-16 11:08:22,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:22,373 INFO L495 AbstractCegarLoop]: Abstraction has 1810 states and 5547 transitions. [2022-11-16 11:08:22,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 5547 transitions. [2022-11-16 11:08:22,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:22,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:22,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:22,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-16 11:08:22,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:22,577 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:22,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:22,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1544792193, now seen corresponding path program 26 times [2022-11-16 11:08:22,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:22,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980112723] [2022-11-16 11:08:22,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:08:22,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:22,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:22,579 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:22,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-16 11:08:22,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:22,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:22,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:22,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:23,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:23,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:23,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980112723] [2022-11-16 11:08:23,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980112723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:23,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:23,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:23,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994531860] [2022-11-16 11:08:23,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:23,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:23,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:23,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:23,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:23,298 INFO L87 Difference]: Start difference. First operand 1810 states and 5547 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:23,468 INFO L93 Difference]: Finished difference Result 2941 states and 9103 transitions. [2022-11-16 11:08:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:23,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:23,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:23,474 INFO L225 Difference]: With dead ends: 2941 [2022-11-16 11:08:23,474 INFO L226 Difference]: Without dead ends: 2836 [2022-11-16 11:08:23,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:23,474 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:23,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 44 Unchecked, 0.2s Time] [2022-11-16 11:08:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2022-11-16 11:08:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 1804. [2022-11-16 11:08:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1802 states have (on average 3.064372918978912) internal successors, (5522), 1803 states have internal predecessors, (5522), 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) [2022-11-16 11:08:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 5522 transitions. [2022-11-16 11:08:23,505 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 5522 transitions. Word has length 28 [2022-11-16 11:08:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:23,506 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 5522 transitions. [2022-11-16 11:08:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 5522 transitions. [2022-11-16 11:08:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:23,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:23,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:23,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:23,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:23,709 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:23,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:23,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1633106507, now seen corresponding path program 27 times [2022-11-16 11:08:23,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:23,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348979901] [2022-11-16 11:08:23,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:08:23,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:23,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:23,711 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:23,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-16 11:08:24,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:08:24,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:24,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:24,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:24,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:24,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:24,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348979901] [2022-11-16 11:08:24,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348979901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:24,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:24,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897932583] [2022-11-16 11:08:24,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:24,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:24,629 INFO L87 Difference]: Start difference. First operand 1804 states and 5522 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:24,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:24,824 INFO L93 Difference]: Finished difference Result 2887 states and 8906 transitions. [2022-11-16 11:08:24,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:24,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:24,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:24,831 INFO L225 Difference]: With dead ends: 2887 [2022-11-16 11:08:24,831 INFO L226 Difference]: Without dead ends: 2816 [2022-11-16 11:08:24,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:24,831 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:24,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-16 11:08:24,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-11-16 11:08:24,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 1796. [2022-11-16 11:08:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1794 states have (on average 3.0663322185061315) internal successors, (5501), 1795 states have internal predecessors, (5501), 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) [2022-11-16 11:08:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 5501 transitions. [2022-11-16 11:08:24,868 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 5501 transitions. Word has length 28 [2022-11-16 11:08:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:24,868 INFO L495 AbstractCegarLoop]: Abstraction has 1796 states and 5501 transitions. [2022-11-16 11:08:24,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 5501 transitions. [2022-11-16 11:08:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:24,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:24,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:24,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-16 11:08:25,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:25,074 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:25,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722525, now seen corresponding path program 28 times [2022-11-16 11:08:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:25,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493136420] [2022-11-16 11:08:25,075 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:08:25,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:25,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:25,076 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:25,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-16 11:08:25,340 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:08:25,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:25,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:25,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:25,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:25,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:25,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493136420] [2022-11-16 11:08:25,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493136420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:25,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:25,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815911775] [2022-11-16 11:08:25,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:25,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:25,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:25,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:25,940 INFO L87 Difference]: Start difference. First operand 1796 states and 5501 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:26,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:26,013 INFO L93 Difference]: Finished difference Result 2274 states and 6868 transitions. [2022-11-16 11:08:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:26,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:26,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:26,018 INFO L225 Difference]: With dead ends: 2274 [2022-11-16 11:08:26,018 INFO L226 Difference]: Without dead ends: 2239 [2022-11-16 11:08:26,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:26,018 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:26,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 37 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 73 Unchecked, 0.1s Time] [2022-11-16 11:08:26,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2022-11-16 11:08:26,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 1798. [2022-11-16 11:08:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1796 states have (on average 3.0645879732739423) internal successors, (5504), 1797 states have internal predecessors, (5504), 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) [2022-11-16 11:08:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 5504 transitions. [2022-11-16 11:08:26,050 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 5504 transitions. Word has length 28 [2022-11-16 11:08:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:26,050 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 5504 transitions. [2022-11-16 11:08:26,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 5504 transitions. [2022-11-16 11:08:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:26,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:26,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:26,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-16 11:08:26,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:26,254 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:26,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:26,255 INFO L85 PathProgramCache]: Analyzing trace with hash -389706965, now seen corresponding path program 29 times [2022-11-16 11:08:26,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:26,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575656470] [2022-11-16 11:08:26,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:08:26,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:26,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:26,256 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:26,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-16 11:08:26,519 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:26,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:26,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:26,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:27,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:27,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:27,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575656470] [2022-11-16 11:08:27,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575656470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:27,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:27,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:27,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714350976] [2022-11-16 11:08:27,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:27,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:27,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:27,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:27,075 INFO L87 Difference]: Start difference. First operand 1798 states and 5504 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:27,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:27,245 INFO L93 Difference]: Finished difference Result 2869 states and 8836 transitions. [2022-11-16 11:08:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:27,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:27,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:27,251 INFO L225 Difference]: With dead ends: 2869 [2022-11-16 11:08:27,251 INFO L226 Difference]: Without dead ends: 2802 [2022-11-16 11:08:27,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:27,252 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:27,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-16 11:08:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2022-11-16 11:08:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 1792. [2022-11-16 11:08:27,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1790 states have (on average 3.0675977653631286) internal successors, (5491), 1791 states have internal predecessors, (5491), 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) [2022-11-16 11:08:27,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 5491 transitions. [2022-11-16 11:08:27,291 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 5491 transitions. Word has length 28 [2022-11-16 11:08:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:27,292 INFO L495 AbstractCegarLoop]: Abstraction has 1792 states and 5491 transitions. [2022-11-16 11:08:27,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 5491 transitions. [2022-11-16 11:08:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:27,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:27,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:27,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-16 11:08:27,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:27,498 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:27,498 INFO L85 PathProgramCache]: Analyzing trace with hash 155415769, now seen corresponding path program 30 times [2022-11-16 11:08:27,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:27,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503934995] [2022-11-16 11:08:27,499 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:08:27,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:27,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:27,500 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:27,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-16 11:08:27,786 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 11:08:27,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:27,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:27,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:28,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:28,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:28,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503934995] [2022-11-16 11:08:28,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503934995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:28,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:28,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:28,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179423230] [2022-11-16 11:08:28,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:28,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:28,362 INFO L87 Difference]: Start difference. First operand 1792 states and 5491 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:28,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:28,534 INFO L93 Difference]: Finished difference Result 2791 states and 8595 transitions. [2022-11-16 11:08:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:28,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:28,539 INFO L225 Difference]: With dead ends: 2791 [2022-11-16 11:08:28,539 INFO L226 Difference]: Without dead ends: 2664 [2022-11-16 11:08:28,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:28,540 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:28,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-16 11:08:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2022-11-16 11:08:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1788. [2022-11-16 11:08:28,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1786 states have (on average 3.0683090705487124) internal successors, (5480), 1787 states have internal predecessors, (5480), 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) [2022-11-16 11:08:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 5480 transitions. [2022-11-16 11:08:28,572 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 5480 transitions. Word has length 28 [2022-11-16 11:08:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:28,572 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 5480 transitions. [2022-11-16 11:08:28,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 5480 transitions. [2022-11-16 11:08:28,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:28,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:28,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:28,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2022-11-16 11:08:28,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:28,775 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1573032411, now seen corresponding path program 31 times [2022-11-16 11:08:28,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:28,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132785710] [2022-11-16 11:08:28,776 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:08:28,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:28,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:28,777 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:28,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-16 11:08:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:29,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:29,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:29,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:29,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:29,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132785710] [2022-11-16 11:08:29,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132785710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:29,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:29,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:29,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675898130] [2022-11-16 11:08:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:29,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:29,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:29,567 INFO L87 Difference]: Start difference. First operand 1788 states and 5480 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:29,646 INFO L93 Difference]: Finished difference Result 2247 states and 6794 transitions. [2022-11-16 11:08:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:29,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:29,650 INFO L225 Difference]: With dead ends: 2247 [2022-11-16 11:08:29,650 INFO L226 Difference]: Without dead ends: 2087 [2022-11-16 11:08:29,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:29,650 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:29,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 55 Unchecked, 0.1s Time] [2022-11-16 11:08:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2022-11-16 11:08:29,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 1781. [2022-11-16 11:08:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1779 states have (on average 3.0741989881956155) internal successors, (5469), 1780 states have internal predecessors, (5469), 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) [2022-11-16 11:08:29,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 5469 transitions. [2022-11-16 11:08:29,683 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 5469 transitions. Word has length 28 [2022-11-16 11:08:29,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:29,683 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 5469 transitions. [2022-11-16 11:08:29,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 5469 transitions. [2022-11-16 11:08:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:29,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:29,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:29,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:29,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:29,902 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:29,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:29,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1586201269, now seen corresponding path program 32 times [2022-11-16 11:08:29,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:29,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998031820] [2022-11-16 11:08:29,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:08:29,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:29,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:29,904 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:29,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-16 11:08:30,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:30,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:30,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:30,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:30,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:30,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:30,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:30,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998031820] [2022-11-16 11:08:30,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998031820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:30,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:30,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172782289] [2022-11-16 11:08:30,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:30,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:30,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:30,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:30,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:30,676 INFO L87 Difference]: Start difference. First operand 1781 states and 5469 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:30,833 INFO L93 Difference]: Finished difference Result 2768 states and 8557 transitions. [2022-11-16 11:08:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:30,838 INFO L225 Difference]: With dead ends: 2768 [2022-11-16 11:08:30,838 INFO L226 Difference]: Without dead ends: 2641 [2022-11-16 11:08:30,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:30,839 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:30,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 42 Unchecked, 0.1s Time] [2022-11-16 11:08:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2022-11-16 11:08:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 1777. [2022-11-16 11:08:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1775 states have (on average 3.0743661971830987) internal successors, (5457), 1776 states have internal predecessors, (5457), 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) [2022-11-16 11:08:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 5457 transitions. [2022-11-16 11:08:30,876 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 5457 transitions. Word has length 28 [2022-11-16 11:08:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:30,876 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 5457 transitions. [2022-11-16 11:08:30,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:30,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 5457 transitions. [2022-11-16 11:08:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:30,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:30,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:30,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-11-16 11:08:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:31,079 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2104615585, now seen corresponding path program 33 times [2022-11-16 11:08:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:31,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858311044] [2022-11-16 11:08:31,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:08:31,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:31,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:31,081 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:31,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-16 11:08:31,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:08:31,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:31,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:31,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:31,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:31,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:31,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858311044] [2022-11-16 11:08:31,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858311044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:31,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:31,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:31,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828638798] [2022-11-16 11:08:31,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:31,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:31,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:31,880 INFO L87 Difference]: Start difference. First operand 1777 states and 5457 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:32,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:32,070 INFO L93 Difference]: Finished difference Result 2908 states and 9007 transitions. [2022-11-16 11:08:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:32,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:32,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:32,077 INFO L225 Difference]: With dead ends: 2908 [2022-11-16 11:08:32,077 INFO L226 Difference]: Without dead ends: 2851 [2022-11-16 11:08:32,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:32,078 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:32,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 44 Unchecked, 0.2s Time] [2022-11-16 11:08:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-11-16 11:08:32,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 1771. [2022-11-16 11:08:32,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1769 states have (on average 3.071791972866026) internal successors, (5434), 1770 states have internal predecessors, (5434), 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) [2022-11-16 11:08:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 5434 transitions. [2022-11-16 11:08:32,114 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 5434 transitions. Word has length 28 [2022-11-16 11:08:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:32,114 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 5434 transitions. [2022-11-16 11:08:32,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:32,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 5434 transitions. [2022-11-16 11:08:32,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:32,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:32,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:32,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2022-11-16 11:08:32,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:32,318 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:32,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:32,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1279959437, now seen corresponding path program 34 times [2022-11-16 11:08:32,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:32,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359427885] [2022-11-16 11:08:32,318 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:08:32,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:32,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:32,320 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:32,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-16 11:08:32,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:08:32,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:32,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:32,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:33,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:33,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:33,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359427885] [2022-11-16 11:08:33,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359427885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:33,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:33,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786160132] [2022-11-16 11:08:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:33,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:33,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:33,156 INFO L87 Difference]: Start difference. First operand 1771 states and 5434 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:33,362 INFO L93 Difference]: Finished difference Result 2902 states and 8984 transitions. [2022-11-16 11:08:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:33,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:33,369 INFO L225 Difference]: With dead ends: 2902 [2022-11-16 11:08:33,369 INFO L226 Difference]: Without dead ends: 2801 [2022-11-16 11:08:33,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:33,370 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:33,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 36 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-16 11:08:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-16 11:08:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 1769. [2022-11-16 11:08:33,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1767 states have (on average 3.0667798528579513) internal successors, (5419), 1768 states have internal predecessors, (5419), 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) [2022-11-16 11:08:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 5419 transitions. [2022-11-16 11:08:33,408 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 5419 transitions. Word has length 28 [2022-11-16 11:08:33,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:33,409 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 5419 transitions. [2022-11-16 11:08:33,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:33,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 5419 transitions. [2022-11-16 11:08:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:33,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:33,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:33,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:33,613 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:33,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1131082155, now seen corresponding path program 35 times [2022-11-16 11:08:33,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:33,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556417369] [2022-11-16 11:08:33,615 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:08:33,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:33,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:33,616 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:33,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-16 11:08:33,866 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:33,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:33,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:08:33,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:34,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:34,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:34,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556417369] [2022-11-16 11:08:34,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556417369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:34,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:34,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:34,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617224911] [2022-11-16 11:08:34,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:34,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:34,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:34,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:34,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:34,466 INFO L87 Difference]: Start difference. First operand 1769 states and 5419 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:34,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:34,547 INFO L93 Difference]: Finished difference Result 2398 states and 7303 transitions. [2022-11-16 11:08:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:34,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:34,553 INFO L225 Difference]: With dead ends: 2398 [2022-11-16 11:08:34,553 INFO L226 Difference]: Without dead ends: 2199 [2022-11-16 11:08:34,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:34,554 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:34,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 37 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2022-11-16 11:08:34,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2022-11-16 11:08:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 1773. [2022-11-16 11:08:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1771 states have (on average 3.0609824957651046) internal successors, (5421), 1772 states have internal predecessors, (5421), 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) [2022-11-16 11:08:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 5421 transitions. [2022-11-16 11:08:34,589 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 5421 transitions. Word has length 28 [2022-11-16 11:08:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:34,589 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 5421 transitions. [2022-11-16 11:08:34,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:34,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 5421 transitions. [2022-11-16 11:08:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:34,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:34,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:34,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2022-11-16 11:08:34,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:34,794 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:34,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:34,795 INFO L85 PathProgramCache]: Analyzing trace with hash -4138603, now seen corresponding path program 36 times [2022-11-16 11:08:34,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:34,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554303658] [2022-11-16 11:08:34,795 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:08:34,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:34,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:34,796 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:34,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-16 11:08:35,061 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 11:08:35,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:35,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:35,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:35,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:35,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:35,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554303658] [2022-11-16 11:08:35,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554303658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:35,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:35,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479272137] [2022-11-16 11:08:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:35,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:35,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:35,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:35,732 INFO L87 Difference]: Start difference. First operand 1773 states and 5421 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:35,938 INFO L93 Difference]: Finished difference Result 2760 states and 8509 transitions. [2022-11-16 11:08:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:35,944 INFO L225 Difference]: With dead ends: 2760 [2022-11-16 11:08:35,944 INFO L226 Difference]: Without dead ends: 2503 [2022-11-16 11:08:35,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:35,945 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-16 11:08:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2022-11-16 11:08:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 1759. [2022-11-16 11:08:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1757 states have (on average 3.0500853727945363) internal successors, (5359), 1758 states have internal predecessors, (5359), 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) [2022-11-16 11:08:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 5359 transitions. [2022-11-16 11:08:35,983 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 5359 transitions. Word has length 28 [2022-11-16 11:08:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:35,984 INFO L495 AbstractCegarLoop]: Abstraction has 1759 states and 5359 transitions. [2022-11-16 11:08:35,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 5359 transitions. [2022-11-16 11:08:35,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:35,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:35,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:36,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:36,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:36,203 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash -14033379, now seen corresponding path program 37 times [2022-11-16 11:08:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:36,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510016061] [2022-11-16 11:08:36,204 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 11:08:36,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:36,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:36,205 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:36,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-16 11:08:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:36,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:36,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:37,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:37,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:37,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510016061] [2022-11-16 11:08:37,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510016061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:37,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:37,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:37,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242635594] [2022-11-16 11:08:37,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:37,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:37,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:37,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:37,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:37,094 INFO L87 Difference]: Start difference. First operand 1759 states and 5359 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:37,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:37,242 INFO L93 Difference]: Finished difference Result 3118 states and 9522 transitions. [2022-11-16 11:08:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:37,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:37,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:37,248 INFO L225 Difference]: With dead ends: 3118 [2022-11-16 11:08:37,248 INFO L226 Difference]: Without dead ends: 3054 [2022-11-16 11:08:37,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:37,249 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:37,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-16 11:08:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2022-11-16 11:08:37,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 1728. [2022-11-16 11:08:37,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1726 states have (on average 3.05909617612978) internal successors, (5280), 1727 states have internal predecessors, (5280), 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) [2022-11-16 11:08:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 5280 transitions. [2022-11-16 11:08:37,285 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 5280 transitions. Word has length 28 [2022-11-16 11:08:37,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:37,285 INFO L495 AbstractCegarLoop]: Abstraction has 1728 states and 5280 transitions. [2022-11-16 11:08:37,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 5280 transitions. [2022-11-16 11:08:37,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:37,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:37,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:37,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2022-11-16 11:08:37,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:37,489 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:37,489 INFO L85 PathProgramCache]: Analyzing trace with hash 178987981, now seen corresponding path program 38 times [2022-11-16 11:08:37,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:37,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599956839] [2022-11-16 11:08:37,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:08:37,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:37,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:37,490 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:37,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-16 11:08:37,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:08:37,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:08:37,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 11:08:37,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:38,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:08:38,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:08:38,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599956839] [2022-11-16 11:08:38,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599956839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:38,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:38,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:38,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715602488] [2022-11-16 11:08:38,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:38,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:38,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:08:38,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:38,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:38,329 INFO L87 Difference]: Start difference. First operand 1728 states and 5280 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:38,485 INFO L93 Difference]: Finished difference Result 3051 states and 9323 transitions. [2022-11-16 11:08:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:38,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Word has length 28 [2022-11-16 11:08:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:38,491 INFO L225 Difference]: With dead ends: 3051 [2022-11-16 11:08:38,491 INFO L226 Difference]: Without dead ends: 2936 [2022-11-16 11:08:38,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:38,494 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:38,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 36 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 44 Unchecked, 0.1s Time] [2022-11-16 11:08:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2022-11-16 11:08:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1708. [2022-11-16 11:08:38,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1706 states have (on average 3.0644783118405625) internal successors, (5228), 1707 states have internal predecessors, (5228), 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) [2022-11-16 11:08:38,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 5228 transitions. [2022-11-16 11:08:38,530 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 5228 transitions. Word has length 28 [2022-11-16 11:08:38,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:38,530 INFO L495 AbstractCegarLoop]: Abstraction has 1708 states and 5228 transitions. [2022-11-16 11:08:38,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2022-11-16 11:08:38,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 5228 transitions. [2022-11-16 11:08:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:08:38,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:38,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:38,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-11-16 11:08:38,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:38,735 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-16 11:08:38,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:38,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1791116754, now seen corresponding path program 4 times [2022-11-16 11:08:38,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:08:38,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450150793] [2022-11-16 11:08:38,736 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:08:38,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:38,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:08:38,737 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:08:38,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-16 11:08:38,957 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:08:38,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-16 11:08:38,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:39,175 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 11:08:39,175 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:08:39,176 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-16 11:08:39,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-16 11:08:39,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-16 11:08:39,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-16 11:08:39,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-16 11:08:39,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-16 11:08:39,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-16 11:08:39,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-16 11:08:39,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-16 11:08:39,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-16 11:08:39,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-16 11:08:39,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-16 11:08:39,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-16 11:08:39,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-16 11:08:39,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-16 11:08:39,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-16 11:08:39,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:08:39,397 INFO L444 BasicCegarLoop]: Path program histogram: [38, 4, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:39,402 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:08:39,402 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:08:39,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:08:39 BasicIcfg [2022-11-16 11:08:39,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:08:39,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:08:39,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:08:39,508 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:08:39,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:30" (3/4) ... [2022-11-16 11:08:39,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:08:39,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:08:39,512 INFO L158 Benchmark]: Toolchain (without parser) took 70678.13ms. Allocated memory was 77.6MB in the beginning and 539.0MB in the end (delta: 461.4MB). Free memory was 59.9MB in the beginning and 203.5MB in the end (delta: -143.6MB). Peak memory consumption was 318.2MB. Max. memory is 16.1GB. [2022-11-16 11:08:39,512 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:08:39,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.05ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 47.1MB in the end (delta: 12.7MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-16 11:08:39,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.84ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 44.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:08:39,513 INFO L158 Benchmark]: Boogie Preprocessor took 43.68ms. Allocated memory is still 77.6MB. Free memory was 44.5MB in the beginning and 42.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:08:39,513 INFO L158 Benchmark]: RCFGBuilder took 1130.79ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 42.3MB in the beginning and 67.7MB in the end (delta: -25.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-11-16 11:08:39,513 INFO L158 Benchmark]: TraceAbstraction took 68634.75ms. Allocated memory was 98.6MB in the beginning and 539.0MB in the end (delta: 440.4MB). Free memory was 66.6MB in the beginning and 203.5MB in the end (delta: -136.9MB). Peak memory consumption was 303.0MB. Max. memory is 16.1GB. [2022-11-16 11:08:39,514 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 539.0MB. Free memory is still 203.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:08:39,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.05ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 47.1MB in the end (delta: 12.7MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.84ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 44.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.68ms. Allocated memory is still 77.6MB. Free memory was 44.5MB in the beginning and 42.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1130.79ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 42.3MB in the beginning and 67.7MB in the end (delta: -25.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 68634.75ms. Allocated memory was 98.6MB in the beginning and 539.0MB in the end (delta: 440.4MB). Free memory was 66.6MB in the beginning and 203.5MB in the end (delta: -136.9MB). Peak memory consumption was 303.0MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 539.0MB. Free memory is still 203.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4s, 160 PlacesBefore, 56 PlacesAfterwards, 149 TransitionsBefore, 44 TransitionsAfterwards, 3644 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 139 TotalNumberOfCompositions, 10251 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5032, independent: 4820, independent conditional: 0, independent unconditional: 4820, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2683, independent: 2608, independent conditional: 0, independent unconditional: 2608, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2683, independent: 2579, independent conditional: 0, independent unconditional: 2579, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 104, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 603, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 527, dependent conditional: 0, dependent unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5032, independent: 2212, independent conditional: 0, independent unconditional: 2212, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 2683, unknown conditional: 0, unknown unconditional: 2683] , Statistics on independence cache: Total cache size (in pairs): 360, Positive cache size: 327, Positive conditional cache size: 0, Positive unconditional cache size: 327, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L736] 0 _Bool a$w_buff1_used; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L720] 0 int a$mem_tmp; [L731] 0 _Bool a$read_delayed; [L712] 0 int __unbuffered_p1_EAX = 0; [L718] 0 int a = 0; [L729] 0 _Bool a$r_buff1_thd3; [L714] 0 int __unbuffered_p2_EAX = 0; [L730] 0 _Bool a$r_buff1_thd4; [L727] 0 _Bool a$r_buff1_thd1; [L733] 0 int a$w_buff0; [L728] 0 _Bool a$r_buff1_thd2; [L735] 0 int a$w_buff1; [L719] 0 _Bool a$flush_delayed; [L726] 0 _Bool a$r_buff1_thd0; [L710] 0 int __unbuffered_cnt = 0; [L732] 0 int *a$read_delayed_var; [L738] 0 _Bool main$tmp_guard1; [L737] 0 _Bool main$tmp_guard0; [L734] 0 _Bool a$w_buff0_used; [L722] 0 _Bool a$r_buff0_thd1; [L721] 0 _Bool a$r_buff0_thd0; [L716] 0 int __unbuffered_p3_EAX = 0; [L724] 0 _Bool a$r_buff0_thd3; [L723] 0 _Bool a$r_buff0_thd2; [L725] 0 _Bool a$r_buff0_thd4; [L740] 0 int x = 0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L861] 0 pthread_t t1353; [L862] FCALL, FORK 0 pthread_create(&t1353, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1353, ((void *)0), P0, ((void *)0))=-1, t1353={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L863] 0 pthread_t t1354; [L750] 1 a$w_buff1 = a$w_buff0 [L751] 1 a$w_buff0 = 1 [L752] 1 a$w_buff1_used = a$w_buff0_used [L753] 1 a$w_buff0_used = (_Bool)1 [L754] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L754] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L755] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L756] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L757] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L758] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L759] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L864] FCALL, FORK 0 pthread_create(&t1354, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1354, ((void *)0), P1, ((void *)0))=0, t1353={3:0}, t1354={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L865] 0 pthread_t t1355; [L866] FCALL, FORK 0 pthread_create(&t1355, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1355, ((void *)0), P2, ((void *)0))=1, t1353={3:0}, t1354={7:0}, t1355={11:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L800] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L806] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L807] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L808] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L809] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L810] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L815] 3 return 0; [L867] 0 pthread_t t1356; [L868] FCALL, FORK 0 pthread_create(&t1356, ((void *)0), P3, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1356, ((void *)0), P3, ((void *)0))=2, t1353={3:0}, t1354={7:0}, t1355={11:0}, t1356={15:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L820] 4 z = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 a$flush_delayed = weak$$choice2 [L826] 4 a$mem_tmp = a [L827] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L828] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L829] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L830] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L831] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L833] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = a [L835] 4 a = a$flush_delayed ? a$mem_tmp : a [L836] 4 a$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 1 return 0; [L839] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L840] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L841] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L842] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L843] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L846] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L848] 4 return 0; [L786] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L787] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L788] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L789] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L790] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L870] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={3:0}, t1354={7:0}, t1355={11:0}, t1356={15:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L872] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L872] RET 0 assume_abort_if_not(main$tmp_guard0) [L874] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L875] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L876] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L877] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L878] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={3:0}, t1354={7:0}, t1355={11:0}, t1356={15:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L881] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 866]: 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: 862]: 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: 868]: 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: 864]: 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 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 68.3s, OverallIterations: 48, TraceHistogramMax: 1, PathProgramHistogramMax: 38, EmptinessCheckTime: 0.3s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1153 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1153 mSDsluCounter, 1600 SdHoareTripleChecker+Invalid, 6.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2127 IncrementalHoareTripleChecker+Unchecked, 1198 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3798 IncrementalHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 402 mSDtfsCounter, 3798 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 995 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5498occurred in iteration=0, InterpolantAutomatonStates: 276, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 47 MinimizatonAttempts, 32753 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 6.7s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 1252 NumberOfCodeBlocks, 1252 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 1177 ConstructedInterpolants, 617 QuantifiedInterpolants, 43490 SizeOfPredicates, 23 NumberOfNonLiveVariables, 9209 ConjunctsInSsa, 733 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 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 could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:08:39,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cf2dd4-2a42-4c61-9bb9-a8eabdda8298/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample