./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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_aca8f250-223f-45ee-ae63-1b470251c381/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 6f7e432a886f0272967b45cc6f21d24dfd6dfdb8fd02a0d13e6bb2d2db636b21 --- 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 12:05:02,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:05:02,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:05:02,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:05:02,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:05:02,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:05:02,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:05:02,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:05:02,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:05:02,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:05:02,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:05:02,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:05:02,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:05:02,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:05:02,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:05:02,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:05:02,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:05:02,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:05:02,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:05:02,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:05:02,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:05:02,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:05:02,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:05:02,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:05:02,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:05:02,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:05:02,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:05:02,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:05:02,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:05:02,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:05:02,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:05:02,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:05:02,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:05:02,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:05:02,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:05:02,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:05:02,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:05:02,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:05:02,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:05:02,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:05:02,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:05:02,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 12:05:02,237 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:05:02,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:05:02,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:05:02,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:05:02,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:05:02,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:05:02,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:05:02,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:05:02,242 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:05:02,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:05:02,243 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:05:02,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:05:02,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:05:02,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:05:02,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:05:02,245 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:05:02,245 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:05:02,246 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:05:02,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:05:02,246 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:05:02,247 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:05:02,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:05:02,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:05:02,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:05:02,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:05:02,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:05:02,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:05:02,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:05:02,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:05:02,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:05:02,262 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_aca8f250-223f-45ee-ae63-1b470251c381/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f7e432a886f0272967b45cc6f21d24dfd6dfdb8fd02a0d13e6bb2d2db636b21 [2022-11-16 12:05:02,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:05:02,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:05:02,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:05:02,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:05:02,604 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:05:02,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i [2022-11-16 12:05:02,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/c4e61258a/01644c79d25344d0bb28867923b7c82d/FLAG2d254fb45 [2022-11-16 12:05:03,188 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:05:03,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i [2022-11-16 12:05:03,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/c4e61258a/01644c79d25344d0bb28867923b7c82d/FLAG2d254fb45 [2022-11-16 12:05:03,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/c4e61258a/01644c79d25344d0bb28867923b7c82d [2022-11-16 12:05:03,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:05:03,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:05:03,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:05:03,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:05:03,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:05:03,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:05:03" (1/1) ... [2022-11-16 12:05:03,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6bd0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:03, skipping insertion in model container [2022-11-16 12:05:03,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:05:03" (1/1) ... [2022-11-16 12:05:03,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:05:03,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:05:03,780 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_aca8f250-223f-45ee-ae63-1b470251c381/sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i[1001,1014] [2022-11-16 12:05:04,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:05:04,106 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:05:04,121 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_aca8f250-223f-45ee-ae63-1b470251c381/sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i[1001,1014] [2022-11-16 12:05:04,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:05:04,239 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:05:04,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04 WrapperNode [2022-11-16 12:05:04,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:05:04,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:05:04,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:05:04,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:05:04,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,321 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 131 [2022-11-16 12:05:04,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:05:04,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:05:04,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:05:04,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:05:04,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:05:04,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:05:04,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:05:04,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:05:04,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (1/1) ... [2022-11-16 12:05:04,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:05:04,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:04,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:05:04,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:05:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:05:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:05:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:05:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:05:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:05:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:05:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:05:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:05:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:05:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:05:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:05:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:05:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:05:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:05:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:05:04,495 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 12:05:04,631 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:05:04,633 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:05:05,036 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:05:05,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:05:05,295 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:05:05,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:05 BoogieIcfgContainer [2022-11-16 12:05:05,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:05:05,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:05:05,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:05:05,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:05:05,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:05:03" (1/3) ... [2022-11-16 12:05:05,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6dc0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:05:05, skipping insertion in model container [2022-11-16 12:05:05,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:04" (2/3) ... [2022-11-16 12:05:05,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6dc0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:05:05, skipping insertion in model container [2022-11-16 12:05:05,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:05" (3/3) ... [2022-11-16 12:05:05,310 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_power.opt_rmo.opt.i [2022-11-16 12:05:05,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:05:05,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 12:05:05,331 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:05:05,455 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:05:05,505 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 12:05:05,524 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-16 12:05:05,535 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-16 12:05:05,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2022-11-16 12:05:05,610 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-11-16 12:05:05,611 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:05:05,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-11-16 12:05:05,619 INFO L119 LiptonReduction]: Number of co-enabled transitions 2364 [2022-11-16 12:05:11,728 INFO L134 LiptonReduction]: Checked pairs total: 5667 [2022-11-16 12:05:11,729 INFO L136 LiptonReduction]: Total number of compositions: 131 [2022-11-16 12:05:11,740 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 33 transitions, 81 flow [2022-11-16 12:05:11,821 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 884 states, 871 states have (on average 3.1504018369690012) internal successors, (2744), 883 states have internal predecessors, (2744), 0 states have call successors, (0), 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 12:05:11,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:05:11,857 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;@82a0176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:05:11,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:05:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 871 states have (on average 3.1504018369690012) internal successors, (2744), 883 states have internal predecessors, (2744), 0 states have call successors, (0), 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 12:05:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 12:05:11,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:11,867 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 12:05:11,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 547, now seen corresponding path program 1 times [2022-11-16 12:05:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:11,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690172848] [2022-11-16 12:05:11,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:11,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:12,017 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 12:05:12,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:12,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690172848] [2022-11-16 12:05:12,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690172848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:12,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:12,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 12:05:12,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898125439] [2022-11-16 12:05:12,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:12,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:05:12,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:05:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:05:12,062 INFO L87 Difference]: Start difference. First operand has 884 states, 871 states have (on average 3.1504018369690012) internal successors, (2744), 883 states have internal predecessors, (2744), 0 states have call successors, (0), 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 12:05:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:12,192 INFO L93 Difference]: Finished difference Result 826 states and 2604 transitions. [2022-11-16 12:05:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:05:12,195 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 12:05:12,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:12,225 INFO L225 Difference]: With dead ends: 826 [2022-11-16 12:05:12,226 INFO L226 Difference]: Without dead ends: 826 [2022-11-16 12:05:12,227 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 12:05:12,231 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:12,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-11-16 12:05:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2022-11-16 12:05:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 821 states have (on average 3.171741778319123) internal successors, (2604), 825 states have internal predecessors, (2604), 0 states have call successors, (0), 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 12:05:12,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 2604 transitions. [2022-11-16 12:05:12,360 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 2604 transitions. Word has length 1 [2022-11-16 12:05:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:12,360 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 2604 transitions. [2022-11-16 12:05:12,360 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 12:05:12,361 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 2604 transitions. [2022-11-16 12:05:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:05:12,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:12,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:05:12,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:05:12,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash 516170350, now seen corresponding path program 1 times [2022-11-16 12:05:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:12,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529466380] [2022-11-16 12:05:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:12,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:12,757 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 12:05:12,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:12,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529466380] [2022-11-16 12:05:12,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529466380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:12,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:12,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:05:12,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728513103] [2022-11-16 12:05:12,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:12,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:05:12,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:05:12,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:05:12,766 INFO L87 Difference]: Start difference. First operand 826 states and 2604 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:12,862 INFO L93 Difference]: Finished difference Result 674 states and 2090 transitions. [2022-11-16 12:05:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:05:12,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:05:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:12,872 INFO L225 Difference]: With dead ends: 674 [2022-11-16 12:05:12,872 INFO L226 Difference]: Without dead ends: 650 [2022-11-16 12:05:12,874 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 12:05:12,882 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:12,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:12,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-16 12:05:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2022-11-16 12:05:12,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 648 states have (on average 3.1296296296296298) internal successors, (2028), 649 states have internal predecessors, (2028), 0 states have call successors, (0), 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 12:05:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2022-11-16 12:05:12,945 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 5 [2022-11-16 12:05:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:12,945 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2022-11-16 12:05:12,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2022-11-16 12:05:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:05:12,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:12,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:12,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:05:12,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:12,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash 114760325, now seen corresponding path program 1 times [2022-11-16 12:05:12,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:12,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192923433] [2022-11-16 12:05:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:12,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:13,329 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 12:05:13,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:13,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192923433] [2022-11-16 12:05:13,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192923433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:13,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:13,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:05:13,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870267966] [2022-11-16 12:05:13,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:13,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:05:13,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:13,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:05:13,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:05:13,332 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:05:13,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:13,429 INFO L93 Difference]: Finished difference Result 754 states and 2258 transitions. [2022-11-16 12:05:13,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:05:13,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-16 12:05:13,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:13,435 INFO L225 Difference]: With dead ends: 754 [2022-11-16 12:05:13,436 INFO L226 Difference]: Without dead ends: 754 [2022-11-16 12:05:13,436 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 12:05:13,437 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:13,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-11-16 12:05:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 642. [2022-11-16 12:05:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 640 states have (on average 3.11875) internal successors, (1996), 641 states have internal predecessors, (1996), 0 states have call successors, (0), 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 12:05:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1996 transitions. [2022-11-16 12:05:13,496 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1996 transitions. Word has length 9 [2022-11-16 12:05:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:13,497 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 1996 transitions. [2022-11-16 12:05:13,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:05:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1996 transitions. [2022-11-16 12:05:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:05:13,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:13,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:05:13,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:13,503 INFO L85 PathProgramCache]: Analyzing trace with hash 114760344, now seen corresponding path program 1 times [2022-11-16 12:05:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:13,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991485962] [2022-11-16 12:05:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:13,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:14,025 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 12:05:14,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:14,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991485962] [2022-11-16 12:05:14,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991485962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:14,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:14,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:14,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462092640] [2022-11-16 12:05:14,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:14,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:14,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:14,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:14,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:14,036 INFO L87 Difference]: Start difference. First operand 642 states and 1996 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:05:14,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:14,191 INFO L93 Difference]: Finished difference Result 522 states and 1590 transitions. [2022-11-16 12:05:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:14,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-16 12:05:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:14,195 INFO L225 Difference]: With dead ends: 522 [2022-11-16 12:05:14,195 INFO L226 Difference]: Without dead ends: 522 [2022-11-16 12:05:14,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:14,197 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:14,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-11-16 12:05:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2022-11-16 12:05:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 3.0518234165067177) internal successors, (1590), 521 states have internal predecessors, (1590), 0 states have call successors, (0), 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 12:05:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1590 transitions. [2022-11-16 12:05:14,219 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1590 transitions. Word has length 9 [2022-11-16 12:05:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:14,220 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 1590 transitions. [2022-11-16 12:05:14,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:05:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1590 transitions. [2022-11-16 12:05:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:05:14,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:14,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:14,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:05:14,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:14,229 INFO L85 PathProgramCache]: Analyzing trace with hash 517064722, now seen corresponding path program 1 times [2022-11-16 12:05:14,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:14,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416315293] [2022-11-16 12:05:14,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:14,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:14,498 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 12:05:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:14,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416315293] [2022-11-16 12:05:14,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416315293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:14,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:14,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:05:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388494471] [2022-11-16 12:05:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:05:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:05:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:05:14,501 INFO L87 Difference]: Start difference. First operand 522 states and 1590 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 12:05:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:14,572 INFO L93 Difference]: Finished difference Result 490 states and 1480 transitions. [2022-11-16 12:05:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:05:14,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-16 12:05:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:14,576 INFO L225 Difference]: With dead ends: 490 [2022-11-16 12:05:14,577 INFO L226 Difference]: Without dead ends: 490 [2022-11-16 12:05:14,577 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 12:05:14,578 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:14,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-11-16 12:05:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2022-11-16 12:05:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 3.0265848670756648) internal successors, (1480), 489 states have internal predecessors, (1480), 0 states have call successors, (0), 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 12:05:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1480 transitions. [2022-11-16 12:05:14,601 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1480 transitions. Word has length 11 [2022-11-16 12:05:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:14,602 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 1480 transitions. [2022-11-16 12:05:14,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 12:05:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1480 transitions. [2022-11-16 12:05:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:05:14,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:14,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:14,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:05:14,603 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1384565097, now seen corresponding path program 1 times [2022-11-16 12:05:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:14,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437952200] [2022-11-16 12:05:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:14,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:14,800 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 12:05:14,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:14,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437952200] [2022-11-16 12:05:14,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437952200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:14,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:14,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:14,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438499868] [2022-11-16 12:05:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:14,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:05:14,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:05:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:05:14,803 INFO L87 Difference]: Start difference. First operand 490 states and 1480 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 12:05:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:14,945 INFO L93 Difference]: Finished difference Result 454 states and 1202 transitions. [2022-11-16 12:05:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:14,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-16 12:05:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:14,948 INFO L225 Difference]: With dead ends: 454 [2022-11-16 12:05:14,948 INFO L226 Difference]: Without dead ends: 334 [2022-11-16 12:05:14,948 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 12:05:14,949 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:14,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 10 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-16 12:05:14,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-11-16 12:05:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 2.5705705705705704) internal successors, (856), 333 states have internal predecessors, (856), 0 states have call successors, (0), 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 12:05:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 856 transitions. [2022-11-16 12:05:14,963 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 856 transitions. Word has length 11 [2022-11-16 12:05:14,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:14,963 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 856 transitions. [2022-11-16 12:05:14,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 12:05:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 856 transitions. [2022-11-16 12:05:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:05:14,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:14,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:14,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:05:14,965 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1991223217, now seen corresponding path program 1 times [2022-11-16 12:05:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:14,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679524344] [2022-11-16 12:05:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:14,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:15,275 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 12:05:15,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:15,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679524344] [2022-11-16 12:05:15,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679524344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:15,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:15,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:05:15,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466151090] [2022-11-16 12:05:15,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:15,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:15,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:15,277 INFO L87 Difference]: Start difference. First operand 334 states and 856 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12:05:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:15,480 INFO L93 Difference]: Finished difference Result 267 states and 628 transitions. [2022-11-16 12:05:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:15,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-16 12:05:15,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:15,482 INFO L225 Difference]: With dead ends: 267 [2022-11-16 12:05:15,482 INFO L226 Difference]: Without dead ends: 207 [2022-11-16 12:05:15,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:15,483 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 55 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:15,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 14 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:15,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-16 12:05:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-11-16 12:05:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 2.3058252427184467) internal successors, (475), 206 states have internal predecessors, (475), 0 states have call successors, (0), 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 12:05:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 475 transitions. [2022-11-16 12:05:15,492 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 475 transitions. Word has length 14 [2022-11-16 12:05:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:15,493 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 475 transitions. [2022-11-16 12:05:15,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12:05:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 475 transitions. [2022-11-16 12:05:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:05:15,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:15,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:15,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:05:15,495 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:15,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash -926412716, now seen corresponding path program 1 times [2022-11-16 12:05:15,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:15,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85101703] [2022-11-16 12:05:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:15,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:15,747 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 12:05:15,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:15,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85101703] [2022-11-16 12:05:15,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85101703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:15,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:15,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752332325] [2022-11-16 12:05:15,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:15,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:05:15,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:15,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:05:15,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:05:15,750 INFO L87 Difference]: Start difference. First operand 207 states and 475 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 12:05:15,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:15,858 INFO L93 Difference]: Finished difference Result 273 states and 607 transitions. [2022-11-16 12:05:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:05:15,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-16 12:05:15,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:15,860 INFO L225 Difference]: With dead ends: 273 [2022-11-16 12:05:15,860 INFO L226 Difference]: Without dead ends: 210 [2022-11-16 12:05:15,860 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 12:05:15,861 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:15,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-16 12:05:15,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2022-11-16 12:05:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 2.2233009708737863) internal successors, (458), 206 states have internal predecessors, (458), 0 states have call successors, (0), 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 12:05:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 458 transitions. [2022-11-16 12:05:15,870 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 458 transitions. Word has length 17 [2022-11-16 12:05:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:15,871 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 458 transitions. [2022-11-16 12:05:15,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 12:05:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 458 transitions. [2022-11-16 12:05:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:05:15,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:15,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:15,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:05:15,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:15,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2125405780, now seen corresponding path program 2 times [2022-11-16 12:05:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:15,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258787827] [2022-11-16 12:05:15,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:16,180 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 12:05:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:16,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258787827] [2022-11-16 12:05:16,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258787827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:16,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:16,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:16,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919515169] [2022-11-16 12:05:16,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:16,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:16,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:16,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:16,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:16,188 INFO L87 Difference]: Start difference. First operand 207 states and 458 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 12:05:16,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:16,354 INFO L93 Difference]: Finished difference Result 186 states and 415 transitions. [2022-11-16 12:05:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:05:16,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-16 12:05:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:16,355 INFO L225 Difference]: With dead ends: 186 [2022-11-16 12:05:16,355 INFO L226 Difference]: Without dead ends: 92 [2022-11-16 12:05:16,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:05:16,356 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 49 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:16,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 10 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-16 12:05:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-16 12:05:16,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 2.032967032967033) internal successors, (185), 91 states have internal predecessors, (185), 0 states have call successors, (0), 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 12:05:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 185 transitions. [2022-11-16 12:05:16,361 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 185 transitions. Word has length 17 [2022-11-16 12:05:16,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:16,361 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 185 transitions. [2022-11-16 12:05:16,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 12:05:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 185 transitions. [2022-11-16 12:05:16,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 12:05:16,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:16,362 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] [2022-11-16 12:05:16,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:05:16,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:16,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:16,364 INFO L85 PathProgramCache]: Analyzing trace with hash -580683090, now seen corresponding path program 1 times [2022-11-16 12:05:16,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:16,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061872065] [2022-11-16 12:05:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:16,900 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 12:05:16,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:16,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061872065] [2022-11-16 12:05:16,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061872065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:16,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:16,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:05:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100112341] [2022-11-16 12:05:16,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:16,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:16,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:16,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:16,904 INFO L87 Difference]: Start difference. First operand 92 states and 185 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 12:05:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:17,130 INFO L93 Difference]: Finished difference Result 148 states and 287 transitions. [2022-11-16 12:05:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:05:17,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-16 12:05:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:17,131 INFO L225 Difference]: With dead ends: 148 [2022-11-16 12:05:17,132 INFO L226 Difference]: Without dead ends: 117 [2022-11-16 12:05:17,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:05:17,132 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:17,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 14 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-16 12:05:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 100. [2022-11-16 12:05:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 2.01010101010101) internal successors, (199), 99 states have internal predecessors, (199), 0 states have call successors, (0), 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 12:05:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 199 transitions. [2022-11-16 12:05:17,138 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 199 transitions. Word has length 21 [2022-11-16 12:05:17,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:17,138 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 199 transitions. [2022-11-16 12:05:17,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 12:05:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 199 transitions. [2022-11-16 12:05:17,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 12:05:17,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:17,139 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] [2022-11-16 12:05:17,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:05:17,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:17,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:17,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1634877102, now seen corresponding path program 2 times [2022-11-16 12:05:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:17,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282003034] [2022-11-16 12:05:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:17,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:18,428 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 12:05:18,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:18,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282003034] [2022-11-16 12:05:18,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282003034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:18,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:18,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:18,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068979229] [2022-11-16 12:05:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:18,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:05:18,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:05:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:05:18,431 INFO L87 Difference]: Start difference. First operand 100 states and 199 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 12:05:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:18,666 INFO L93 Difference]: Finished difference Result 110 states and 213 transitions. [2022-11-16 12:05:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-16 12:05:18,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:18,667 INFO L225 Difference]: With dead ends: 110 [2022-11-16 12:05:18,667 INFO L226 Difference]: Without dead ends: 78 [2022-11-16 12:05:18,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:05:18,668 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:18,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 19 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-16 12:05:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2022-11-16 12:05:18,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.9275362318840579) internal successors, (133), 69 states have internal predecessors, (133), 0 states have call successors, (0), 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 12:05:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 133 transitions. [2022-11-16 12:05:18,672 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 133 transitions. Word has length 21 [2022-11-16 12:05:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:18,672 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 133 transitions. [2022-11-16 12:05:18,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 12:05:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 133 transitions. [2022-11-16 12:05:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 12:05:18,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:18,673 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] [2022-11-16 12:05:18,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:05:18,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:18,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:18,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1229845076, now seen corresponding path program 3 times [2022-11-16 12:05:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:18,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088086969] [2022-11-16 12:05:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:18,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:05:18,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:05:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:05:18,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:05:18,864 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:05:18,865 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-16 12:05:18,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-16 12:05:18,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-16 12:05:18,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-16 12:05:18,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-16 12:05:18,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-16 12:05:18,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-16 12:05:18,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-16 12:05:18,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-16 12:05:18,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-16 12:05:18,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-16 12:05:18,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-16 12:05:18,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-16 12:05:18,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:05:18,872 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:18,878 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:05:18,879 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:05:18,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:05:18 BasicIcfg [2022-11-16 12:05:18,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:05:18,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:05:18,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:05:18,973 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:05:18,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:05" (3/4) ... [2022-11-16 12:05:18,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:05:18,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:05:18,978 INFO L158 Benchmark]: Toolchain (without parser) took 15467.76ms. Allocated memory was 102.8MB in the beginning and 262.1MB in the end (delta: 159.4MB). Free memory was 58.2MB in the beginning and 210.0MB in the end (delta: -151.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-16 12:05:18,978 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:05:18,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.37ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 65.3MB in the end (delta: -7.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-11-16 12:05:18,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.14ms. Allocated memory is still 102.8MB. Free memory was 65.3MB in the beginning and 62.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:18,979 INFO L158 Benchmark]: Boogie Preprocessor took 56.79ms. Allocated memory is still 102.8MB. Free memory was 62.7MB in the beginning and 60.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:18,980 INFO L158 Benchmark]: RCFGBuilder took 915.25ms. Allocated memory was 102.8MB in the beginning and 146.8MB in the end (delta: 44.0MB). Free memory was 60.9MB in the beginning and 110.8MB in the end (delta: -49.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-11-16 12:05:18,980 INFO L158 Benchmark]: TraceAbstraction took 13670.67ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 109.9MB in the beginning and 210.0MB in the end (delta: -100.1MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. [2022-11-16 12:05:18,980 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 262.1MB. Free memory is still 210.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:05:18,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.37ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 65.3MB in the end (delta: -7.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.14ms. Allocated memory is still 102.8MB. Free memory was 65.3MB in the beginning and 62.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.79ms. Allocated memory is still 102.8MB. Free memory was 62.7MB in the beginning and 60.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 915.25ms. Allocated memory was 102.8MB in the beginning and 146.8MB in the end (delta: 44.0MB). Free memory was 60.9MB in the beginning and 110.8MB in the end (delta: -49.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13670.67ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 109.9MB in the beginning and 210.0MB in the end (delta: -100.1MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 262.1MB. Free memory is still 210.0MB. 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: 6.2s, 137 PlacesBefore, 43 PlacesAfterwards, 129 TransitionsBefore, 33 TransitionsAfterwards, 2364 CoEnabledTransitionPairs, 6 FixpointIterations, 57 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 131 TotalNumberOfCompositions, 5667 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2945, independent: 2783, independent conditional: 0, independent unconditional: 2783, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1720, independent: 1649, independent conditional: 0, independent unconditional: 1649, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1720, independent: 1640, independent conditional: 0, independent unconditional: 1640, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 497, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 480, dependent conditional: 0, dependent unconditional: 480, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2945, independent: 1134, independent conditional: 0, independent unconditional: 1134, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 1720, unknown conditional: 0, unknown unconditional: 1720] , Statistics on independence cache: Total cache size (in pairs): 182, Positive cache size: 158, Positive conditional cache size: 0, Positive unconditional cache size: 158, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L718] 0 int __unbuffered_p2_EBX = 0; [L725] 0 _Bool x$flush_delayed; [L736] 0 int *x$read_delayed_var; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L726] 0 int x$mem_tmp; [L712] 0 int __unbuffered_p0_EAX = 0; [L730] 0 _Bool x$r_buff0_thd3; [L728] 0 _Bool x$r_buff0_thd1; [L714] 0 int __unbuffered_p1_EAX = 0; [L729] 0 _Bool x$r_buff0_thd2; [L727] 0 _Bool x$r_buff0_thd0; [L720] 0 int a = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L735] 0 _Bool x$read_delayed; [L710] 0 int __unbuffered_cnt = 0; [L722] 0 _Bool main$tmp_guard1; [L740] 0 _Bool x$w_buff1_used; [L721] 0 _Bool main$tmp_guard0; [L738] 0 _Bool x$w_buff0_used; [L737] 0 int x$w_buff0; [L739] 0 int x$w_buff1; [L724] 0 int x = 0; [L732] 0 _Bool x$r_buff1_thd1; [L731] 0 _Bool x$r_buff1_thd0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L734] 0 _Bool x$r_buff1_thd3; [L733] 0 _Bool x$r_buff1_thd2; [L841] 0 pthread_t t916; [L842] FCALL, FORK 0 pthread_create(&t916, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t916, ((void *)0), P0, ((void *)0))=-2, t916={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L843] 0 pthread_t t917; [L844] FCALL, FORK 0 pthread_create(&t917, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t917, ((void *)0), P1, ((void *)0))=-1, t916={5:0}, t917={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L778] 2 x$w_buff1 = x$w_buff0 [L779] 2 x$w_buff0 = 1 [L780] 2 x$w_buff1_used = x$w_buff0_used [L781] 2 x$w_buff0_used = (_Bool)1 [L782] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L782] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L783] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L784] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L785] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L786] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L787] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L790] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L845] 0 pthread_t t918; [L846] FCALL, FORK 0 pthread_create(&t918, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t918, ((void *)0), P2, ((void *)0))=0, t916={5:0}, t917={6:0}, t918={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L807] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L810] 3 z = 1 [L813] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L816] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L753] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L754] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L755] 1 x$flush_delayed = weak$$choice2 [L756] 1 x$mem_tmp = x [L757] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L758] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L759] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L760] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L761] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L762] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L763] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L764] 1 __unbuffered_p0_EAX = x [L765] 1 x = x$flush_delayed ? x$mem_tmp : x [L766] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L793] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L794] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L795] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L796] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L797] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L771] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 1 return 0; [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L802] 2 return 0; [L819] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L820] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L821] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L822] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L823] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L826] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 3 return 0; [L848] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L850] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L850] RET 0 assume_abort_if_not(main$tmp_guard0) [L852] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L853] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L854] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L855] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L856] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t916={5:0}, t917={6:0}, t918={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L859] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L861] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - UnprovableResult [Line: 19]: 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: 839]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 842]: 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: 846]: 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: 844]: 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 7 procedures, 157 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 271 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 917 IncrementalHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 35 mSDtfsCounter, 917 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=884occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 140 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 1091 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 12:05:19,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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_aca8f250-223f-45ee-ae63-1b470251c381/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 6f7e432a886f0272967b45cc6f21d24dfd6dfdb8fd02a0d13e6bb2d2db636b21 --- 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 12:05:21,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:05:21,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:05:21,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:05:21,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:05:21,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:05:21,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:05:21,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:05:21,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:05:21,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:05:21,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:05:21,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:05:21,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:05:21,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:05:21,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:05:21,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:05:21,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:05:21,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:05:21,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:05:21,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:05:21,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:05:21,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:05:21,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:05:21,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:05:21,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:05:21,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:05:21,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:05:21,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:05:21,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:05:21,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:05:21,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:05:21,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:05:21,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:05:21,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:05:21,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:05:21,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:05:21,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:05:21,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:05:21,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:05:21,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:05:21,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:05:21,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 12:05:21,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:05:21,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:05:21,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:05:21,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:05:21,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:05:21,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:05:21,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:05:21,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:05:21,624 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:05:21,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:05:21,626 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:05:21,626 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:05:21,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:05:21,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:05:21,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:05:21,628 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:05:21,628 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:05:21,628 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:05:21,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:05:21,629 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:05:21,629 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:05:21,630 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:05:21,630 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:05:21,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:05:21,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:05:21,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:05:21,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:05:21,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:05:21,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:05:21,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:05:21,633 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:05:21,633 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:05:21,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:05:21,634 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_aca8f250-223f-45ee-ae63-1b470251c381/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_aca8f250-223f-45ee-ae63-1b470251c381/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 -> 6f7e432a886f0272967b45cc6f21d24dfd6dfdb8fd02a0d13e6bb2d2db636b21 [2022-11-16 12:05:22,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:05:22,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:05:22,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:05:22,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:05:22,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:05:22,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i [2022-11-16 12:05:22,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/5b5d75420/63dffd1910244b78b19734e3f641cf87/FLAG784ccf7b7 [2022-11-16 12:05:22,903 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:05:22,904 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i [2022-11-16 12:05:22,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/5b5d75420/63dffd1910244b78b19734e3f641cf87/FLAG784ccf7b7 [2022-11-16 12:05:23,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/data/5b5d75420/63dffd1910244b78b19734e3f641cf87 [2022-11-16 12:05:23,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:05:23,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:05:23,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:05:23,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:05:23,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:05:23,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:23,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38aeaea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23, skipping insertion in model container [2022-11-16 12:05:23,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:23,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:05:23,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:05:23,529 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_aca8f250-223f-45ee-ae63-1b470251c381/sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i[1001,1014] [2022-11-16 12:05:23,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:05:23,814 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:05:23,836 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_aca8f250-223f-45ee-ae63-1b470251c381/sv-benchmarks/c/pthread-wmm/mix035_power.opt_rmo.opt.i[1001,1014] [2022-11-16 12:05:23,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:05:23,981 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:05:23,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23 WrapperNode [2022-11-16 12:05:23,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:05:23,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:05:23,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:05:23,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:05:23,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,074 INFO L138 Inliner]: procedures = 179, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2022-11-16 12:05:24,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:05:24,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:05:24,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:05:24,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:05:24,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:05:24,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:05:24,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:05:24,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:05:24,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (1/1) ... [2022-11-16 12:05:24,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:05:24,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:24,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:05:24,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:05:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:05:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:05:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:05:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:05:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:05:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:05:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:05:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:05:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:05:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:05:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:05:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:05:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:05:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:05:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:05:24,260 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 12:05:24,493 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:05:24,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:05:25,047 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:05:25,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:05:25,185 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:05:25,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:25 BoogieIcfgContainer [2022-11-16 12:05:25,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:05:25,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:05:25,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:05:25,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:05:25,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:05:23" (1/3) ... [2022-11-16 12:05:25,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bf3e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:05:25, skipping insertion in model container [2022-11-16 12:05:25,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:23" (2/3) ... [2022-11-16 12:05:25,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bf3e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:05:25, skipping insertion in model container [2022-11-16 12:05:25,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:25" (3/3) ... [2022-11-16 12:05:25,198 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_power.opt_rmo.opt.i [2022-11-16 12:05:25,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:05:25,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 12:05:25,220 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:05:25,298 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:05:25,358 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 12:05:25,381 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 130 transitions, 275 flow [2022-11-16 12:05:25,384 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 130 transitions, 275 flow [2022-11-16 12:05:25,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 130 transitions, 275 flow [2022-11-16 12:05:25,488 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-11-16 12:05:25,489 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:05:25,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-11-16 12:05:25,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 2364 [2022-11-16 12:05:36,202 INFO L134 LiptonReduction]: Checked pairs total: 5900 [2022-11-16 12:05:36,202 INFO L136 LiptonReduction]: Total number of compositions: 127 [2022-11-16 12:05:36,211 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 85 flow [2022-11-16 12:05:36,301 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1028 states, 1015 states have (on average 3.3300492610837438) internal successors, (3380), 1027 states have internal predecessors, (3380), 0 states have call successors, (0), 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 12:05:36,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:05:36,325 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;@31ee2ef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:05:36,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:05:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 1028 states, 1015 states have (on average 3.3300492610837438) internal successors, (3380), 1027 states have internal predecessors, (3380), 0 states have call successors, (0), 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 12:05:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 12:05:36,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:36,337 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 12:05:36,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash 547, now seen corresponding path program 1 times [2022-11-16 12:05:36,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:36,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544916993] [2022-11-16 12:05:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:36,357 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 12:05:36,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:36,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:36,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:05:36,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:36,472 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 12:05:36,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:36,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:36,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544916993] [2022-11-16 12:05:36,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544916993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:36,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:36,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 12:05:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333036455] [2022-11-16 12:05:36,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:36,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:05:36,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:05:36,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:05:36,518 INFO L87 Difference]: Start difference. First operand has 1028 states, 1015 states have (on average 3.3300492610837438) internal successors, (3380), 1027 states have internal predecessors, (3380), 0 states have call successors, (0), 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 12:05:36,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:36,700 INFO L93 Difference]: Finished difference Result 970 states and 3096 transitions. [2022-11-16 12:05:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:05:36,702 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 12:05:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:36,735 INFO L225 Difference]: With dead ends: 970 [2022-11-16 12:05:36,736 INFO L226 Difference]: Without dead ends: 970 [2022-11-16 12:05:36,736 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 12:05:36,739 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:36,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-11-16 12:05:36,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2022-11-16 12:05:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 965 states have (on average 3.2082901554404146) internal successors, (3096), 969 states have internal predecessors, (3096), 0 states have call successors, (0), 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 12:05:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3096 transitions. [2022-11-16 12:05:36,921 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3096 transitions. Word has length 1 [2022-11-16 12:05:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:36,922 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 3096 transitions. [2022-11-16 12:05:36,922 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 12:05:36,922 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3096 transitions. [2022-11-16 12:05:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:05:36,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:36,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:05:36,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:37,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:37,135 INFO L85 PathProgramCache]: Analyzing trace with hash 516278886, now seen corresponding path program 1 times [2022-11-16 12:05:37,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:37,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218124869] [2022-11-16 12:05:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:37,136 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 12:05:37,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:37,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:37,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:05:37,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:37,315 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 12:05:37,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:37,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:37,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218124869] [2022-11-16 12:05:37,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218124869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:37,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:37,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:05:37,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289956289] [2022-11-16 12:05:37,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:37,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:05:37,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:05:37,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:05:37,320 INFO L87 Difference]: Start difference. First operand 970 states and 3096 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:37,432 INFO L93 Difference]: Finished difference Result 794 states and 2496 transitions. [2022-11-16 12:05:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:05:37,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:05:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:37,441 INFO L225 Difference]: With dead ends: 794 [2022-11-16 12:05:37,441 INFO L226 Difference]: Without dead ends: 770 [2022-11-16 12:05:37,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:05:37,443 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:37,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:37,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-11-16 12:05:37,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2022-11-16 12:05:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 768 states have (on average 3.1692708333333335) internal successors, (2434), 769 states have internal predecessors, (2434), 0 states have call successors, (0), 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 12:05:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2434 transitions. [2022-11-16 12:05:37,519 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2434 transitions. Word has length 5 [2022-11-16 12:05:37,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:37,519 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 2434 transitions. [2022-11-16 12:05:37,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2434 transitions. [2022-11-16 12:05:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:05:37,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:37,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:37,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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)] Ended with exit code 0 [2022-11-16 12:05:37,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:37,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1125617351, now seen corresponding path program 1 times [2022-11-16 12:05:37,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:37,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695223879] [2022-11-16 12:05:37,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:37,736 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 12:05:37,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:37,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:37,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:05:37,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:37,983 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 12:05:37,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:37,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:37,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695223879] [2022-11-16 12:05:37,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695223879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:37,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:37,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:37,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685808242] [2022-11-16 12:05:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:37,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:05:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:05:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:05:37,986 INFO L87 Difference]: Start difference. First operand 770 states and 2434 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:38,132 INFO L93 Difference]: Finished difference Result 590 states and 1580 transitions. [2022-11-16 12:05:38,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:05:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 12:05:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:38,136 INFO L225 Difference]: With dead ends: 590 [2022-11-16 12:05:38,136 INFO L226 Difference]: Without dead ends: 470 [2022-11-16 12:05:38,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 12:05:38,138 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:38,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 9 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:38,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-11-16 12:05:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-11-16 12:05:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 468 states have (on average 2.6367521367521367) internal successors, (1234), 469 states have internal predecessors, (1234), 0 states have call successors, (0), 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 12:05:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1234 transitions. [2022-11-16 12:05:38,157 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1234 transitions. Word has length 10 [2022-11-16 12:05:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:38,158 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 1234 transitions. [2022-11-16 12:05:38,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1234 transitions. [2022-11-16 12:05:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:05:38,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:38,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:38,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:38,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:38,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash 184258381, now seen corresponding path program 1 times [2022-11-16 12:05:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:38,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112550834] [2022-11-16 12:05:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:38,374 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 12:05:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:38,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:38,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:38,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:05:38,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:38,616 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 12:05:38,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:38,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:38,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112550834] [2022-11-16 12:05:38,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112550834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:38,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:38,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:05:38,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984249373] [2022-11-16 12:05:38,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:38,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:38,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:38,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:38,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:38,621 INFO L87 Difference]: Start difference. First operand 470 states and 1234 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:38,825 INFO L93 Difference]: Finished difference Result 295 states and 682 transitions. [2022-11-16 12:05:38,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:38,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 12:05:38,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:38,827 INFO L225 Difference]: With dead ends: 295 [2022-11-16 12:05:38,827 INFO L226 Difference]: Without dead ends: 235 [2022-11-16 12:05:38,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:05:38,828 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 68 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:38,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 15 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:38,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-16 12:05:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2022-11-16 12:05:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 233 states have (on average 2.2703862660944205) internal successors, (529), 234 states have internal predecessors, (529), 0 states have call successors, (0), 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 12:05:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 529 transitions. [2022-11-16 12:05:38,843 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 529 transitions. Word has length 13 [2022-11-16 12:05:38,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:38,843 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 529 transitions. [2022-11-16 12:05:38,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:38,850 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 529 transitions. [2022-11-16 12:05:38,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:05:38,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:38,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:38,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:39,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:39,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1121494607, now seen corresponding path program 1 times [2022-11-16 12:05:39,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:39,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827917362] [2022-11-16 12:05:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:39,077 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 12:05:39,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:39,078 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:39,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:05:39,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:39,314 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 12:05:39,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:39,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:39,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827917362] [2022-11-16 12:05:39,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827917362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:39,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:39,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766925885] [2022-11-16 12:05:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:39,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:39,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:39,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:39,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:39,318 INFO L87 Difference]: Start difference. First operand 235 states and 529 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 12:05:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:39,567 INFO L93 Difference]: Finished difference Result 188 states and 433 transitions. [2022-11-16 12:05:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:39,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-16 12:05:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:39,569 INFO L225 Difference]: With dead ends: 188 [2022-11-16 12:05:39,569 INFO L226 Difference]: Without dead ends: 175 [2022-11-16 12:05:39,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 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 12:05:39,571 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 76 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:39,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 27 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-16 12:05:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-16 12:05:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 173 states have (on average 2.3641618497109826) internal successors, (409), 174 states have internal predecessors, (409), 0 states have call successors, (0), 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 12:05:39,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 409 transitions. [2022-11-16 12:05:39,578 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 409 transitions. Word has length 17 [2022-11-16 12:05:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:39,583 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 409 transitions. [2022-11-16 12:05:39,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 12:05:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 409 transitions. [2022-11-16 12:05:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:39,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:39,587 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] [2022-11-16 12:05:39,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:39,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:39,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1314944809, now seen corresponding path program 1 times [2022-11-16 12:05:39,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:39,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569418127] [2022-11-16 12:05:39,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:39,805 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 12:05:39,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:39,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:39,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:40,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:40,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:40,439 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 12:05:40,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:40,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:40,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569418127] [2022-11-16 12:05:40,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569418127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:40,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:40,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:40,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085984780] [2022-11-16 12:05:40,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:40,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:40,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:40,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:40,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:40,441 INFO L87 Difference]: Start difference. First operand 175 states and 409 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:40,581 INFO L93 Difference]: Finished difference Result 311 states and 730 transitions. [2022-11-16 12:05:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:40,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:40,584 INFO L225 Difference]: With dead ends: 311 [2022-11-16 12:05:40,584 INFO L226 Difference]: Without dead ends: 311 [2022-11-16 12:05:40,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:40,585 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:40,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 34 Unchecked, 0.1s Time] [2022-11-16 12:05:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-11-16 12:05:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 185. [2022-11-16 12:05:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 183 states have (on average 2.289617486338798) internal successors, (419), 184 states have internal predecessors, (419), 0 states have call successors, (0), 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 12:05:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 419 transitions. [2022-11-16 12:05:40,594 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 419 transitions. Word has length 22 [2022-11-16 12:05:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:40,594 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 419 transitions. [2022-11-16 12:05:40,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:40,595 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 419 transitions. [2022-11-16 12:05:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:40,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:40,596 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] [2022-11-16 12:05:40,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:40,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:40,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1314944790, now seen corresponding path program 1 times [2022-11-16 12:05:40,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:40,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406794259] [2022-11-16 12:05:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:40,811 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 12:05:40,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:40,811 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:40,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:40,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:05:40,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:41,140 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 12:05:41,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:41,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406794259] [2022-11-16 12:05:41,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406794259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:41,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:41,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:41,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050773020] [2022-11-16 12:05:41,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:41,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:05:41,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:05:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:05:41,145 INFO L87 Difference]: Start difference. First operand 185 states and 419 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:41,512 INFO L93 Difference]: Finished difference Result 273 states and 572 transitions. [2022-11-16 12:05:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:05:41,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:41,514 INFO L225 Difference]: With dead ends: 273 [2022-11-16 12:05:41,514 INFO L226 Difference]: Without dead ends: 262 [2022-11-16 12:05:41,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:05:41,515 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 47 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:41,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 37 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:05:41,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-11-16 12:05:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 235. [2022-11-16 12:05:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 233 states have (on average 2.2145922746781115) internal successors, (516), 234 states have internal predecessors, (516), 0 states have call successors, (0), 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 12:05:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 516 transitions. [2022-11-16 12:05:41,526 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 516 transitions. Word has length 22 [2022-11-16 12:05:41,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:41,526 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 516 transitions. [2022-11-16 12:05:41,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 516 transitions. [2022-11-16 12:05:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:41,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:41,528 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] [2022-11-16 12:05:41,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:41,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:41,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:41,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:41,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1322036617, now seen corresponding path program 2 times [2022-11-16 12:05:41,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:41,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684818561] [2022-11-16 12:05:41,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:05:41,743 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 12:05:41,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:41,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:41,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:41,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:41,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:41,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:41,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:42,287 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 12:05:42,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:42,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:42,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684818561] [2022-11-16 12:05:42,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684818561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:42,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:42,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:42,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672737841] [2022-11-16 12:05:42,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:42,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:42,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:42,290 INFO L87 Difference]: Start difference. First operand 235 states and 516 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:42,388 INFO L93 Difference]: Finished difference Result 402 states and 892 transitions. [2022-11-16 12:05:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:42,391 INFO L225 Difference]: With dead ends: 402 [2022-11-16 12:05:42,392 INFO L226 Difference]: Without dead ends: 384 [2022-11-16 12:05:42,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:42,393 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:42,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 35 Unchecked, 0.1s Time] [2022-11-16 12:05:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-11-16 12:05:42,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 241. [2022-11-16 12:05:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 239 states have (on average 2.200836820083682) internal successors, (526), 240 states have internal predecessors, (526), 0 states have call successors, (0), 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 12:05:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 526 transitions. [2022-11-16 12:05:42,404 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 526 transitions. Word has length 22 [2022-11-16 12:05:42,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:42,405 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 526 transitions. [2022-11-16 12:05:42,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 526 transitions. [2022-11-16 12:05:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:42,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:42,406 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] [2022-11-16 12:05:42,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:42,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:42,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:42,616 INFO L85 PathProgramCache]: Analyzing trace with hash -583635465, now seen corresponding path program 3 times [2022-11-16 12:05:42,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:42,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996535213] [2022-11-16 12:05:42,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:05:42,617 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 12:05:42,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:42,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:42,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:42,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:05:42,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:42,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:42,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:43,195 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 12:05:43,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:43,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:43,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996535213] [2022-11-16 12:05:43,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996535213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:43,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:43,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346770084] [2022-11-16 12:05:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:43,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:43,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:43,197 INFO L87 Difference]: Start difference. First operand 241 states and 526 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:43,287 INFO L93 Difference]: Finished difference Result 398 states and 887 transitions. [2022-11-16 12:05:43,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:43,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:43,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:43,290 INFO L225 Difference]: With dead ends: 398 [2022-11-16 12:05:43,291 INFO L226 Difference]: Without dead ends: 381 [2022-11-16 12:05:43,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:43,292 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:43,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:05:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-11-16 12:05:43,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 248. [2022-11-16 12:05:43,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 2.1707317073170733) internal successors, (534), 247 states have internal predecessors, (534), 0 states have call successors, (0), 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 12:05:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 534 transitions. [2022-11-16 12:05:43,303 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 534 transitions. Word has length 22 [2022-11-16 12:05:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:43,303 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 534 transitions. [2022-11-16 12:05:43,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 534 transitions. [2022-11-16 12:05:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:43,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:43,305 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] [2022-11-16 12:05:43,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:43,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:43,524 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:43,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1980106076, now seen corresponding path program 2 times [2022-11-16 12:05:43,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:43,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696892653] [2022-11-16 12:05:43,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:05:43,534 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 12:05:43,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:43,535 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:43,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:43,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:43,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:43,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:05:43,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:43,753 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 12:05:43,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:43,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:43,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696892653] [2022-11-16 12:05:43,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696892653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:43,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:43,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:05:43,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573512939] [2022-11-16 12:05:43,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:43,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:43,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:43,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:43,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:43,756 INFO L87 Difference]: Start difference. First operand 248 states and 534 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:43,967 INFO L93 Difference]: Finished difference Result 320 states and 675 transitions. [2022-11-16 12:05:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:43,970 INFO L225 Difference]: With dead ends: 320 [2022-11-16 12:05:43,970 INFO L226 Difference]: Without dead ends: 293 [2022-11-16 12:05:43,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 12:05:43,971 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:43,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 18 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-11-16 12:05:43,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2022-11-16 12:05:43,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 2.2956521739130435) internal successors, (528), 231 states have internal predecessors, (528), 0 states have call successors, (0), 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 12:05:43,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 528 transitions. [2022-11-16 12:05:43,987 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 528 transitions. Word has length 22 [2022-11-16 12:05:43,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:43,987 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 528 transitions. [2022-11-16 12:05:43,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:43,988 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 528 transitions. [2022-11-16 12:05:43,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:43,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:43,989 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] [2022-11-16 12:05:44,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:44,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:44,202 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:44,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:44,202 INFO L85 PathProgramCache]: Analyzing trace with hash -649530867, now seen corresponding path program 4 times [2022-11-16 12:05:44,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:44,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364824968] [2022-11-16 12:05:44,203 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:05:44,203 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 12:05:44,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:44,204 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:44,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:44,404 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:05:44,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:44,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:44,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:44,740 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 12:05:44,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:44,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:44,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364824968] [2022-11-16 12:05:44,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364824968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:44,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:44,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:44,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676635008] [2022-11-16 12:05:44,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:44,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:44,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:44,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:44,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:44,743 INFO L87 Difference]: Start difference. First operand 232 states and 528 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:44,828 INFO L93 Difference]: Finished difference Result 368 states and 848 transitions. [2022-11-16 12:05:44,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:44,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:44,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:44,830 INFO L225 Difference]: With dead ends: 368 [2022-11-16 12:05:44,830 INFO L226 Difference]: Without dead ends: 350 [2022-11-16 12:05:44,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:44,831 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:44,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-11-16 12:05:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-16 12:05:44,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 231. [2022-11-16 12:05:44,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 229 states have (on average 2.2925764192139737) internal successors, (525), 230 states have internal predecessors, (525), 0 states have call successors, (0), 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 12:05:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 525 transitions. [2022-11-16 12:05:44,841 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 525 transitions. Word has length 22 [2022-11-16 12:05:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:44,842 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 525 transitions. [2022-11-16 12:05:44,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 525 transitions. [2022-11-16 12:05:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:44,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:44,843 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] [2022-11-16 12:05:44,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:45,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:45,056 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:45,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash -791576449, now seen corresponding path program 5 times [2022-11-16 12:05:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:45,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887798504] [2022-11-16 12:05:45,057 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:05:45,057 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 12:05:45,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:45,060 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:45,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:45,267 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:45,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:45,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:45,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:45,612 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 12:05:45,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:45,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:45,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887798504] [2022-11-16 12:05:45,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887798504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:45,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:45,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:45,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207788341] [2022-11-16 12:05:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:45,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:45,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:45,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:45,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:45,614 INFO L87 Difference]: Start difference. First operand 231 states and 525 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:45,695 INFO L93 Difference]: Finished difference Result 367 states and 845 transitions. [2022-11-16 12:05:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:45,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:45,697 INFO L225 Difference]: With dead ends: 367 [2022-11-16 12:05:45,698 INFO L226 Difference]: Without dead ends: 335 [2022-11-16 12:05:45,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:45,698 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:45,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:05:45,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-16 12:05:45,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 230. [2022-11-16 12:05:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 228 states have (on average 2.289473684210526) internal successors, (522), 229 states have internal predecessors, (522), 0 states have call successors, (0), 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 12:05:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 522 transitions. [2022-11-16 12:05:45,708 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 522 transitions. Word has length 22 [2022-11-16 12:05:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:45,709 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 522 transitions. [2022-11-16 12:05:45,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 522 transitions. [2022-11-16 12:05:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:45,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:45,710 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] [2022-11-16 12:05:45,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:45,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:45,924 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:45,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1826199629, now seen corresponding path program 6 times [2022-11-16 12:05:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:45,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035123922] [2022-11-16 12:05:45,925 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:05:45,925 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 12:05:45,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:45,927 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:45,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:46,124 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:05:46,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:46,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:46,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:46,470 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 12:05:46,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:46,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:46,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035123922] [2022-11-16 12:05:46,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035123922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:46,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:46,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:46,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563442309] [2022-11-16 12:05:46,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:46,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:46,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:46,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:46,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:46,473 INFO L87 Difference]: Start difference. First operand 230 states and 522 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:46,579 INFO L93 Difference]: Finished difference Result 366 states and 842 transitions. [2022-11-16 12:05:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:46,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:46,582 INFO L225 Difference]: With dead ends: 366 [2022-11-16 12:05:46,583 INFO L226 Difference]: Without dead ends: 320 [2022-11-16 12:05:46,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:46,584 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:46,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 34 Unchecked, 0.1s Time] [2022-11-16 12:05:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-16 12:05:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 229. [2022-11-16 12:05:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 227 states have (on average 2.2863436123348015) internal successors, (519), 228 states have internal predecessors, (519), 0 states have call successors, (0), 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 12:05:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 519 transitions. [2022-11-16 12:05:46,598 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 519 transitions. Word has length 22 [2022-11-16 12:05:46,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:46,598 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 519 transitions. [2022-11-16 12:05:46,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 519 transitions. [2022-11-16 12:05:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:46,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:46,600 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] [2022-11-16 12:05:46,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:46,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:46,814 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:46,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1686350639, now seen corresponding path program 7 times [2022-11-16 12:05:46,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:46,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37550880] [2022-11-16 12:05:46,816 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:05:46,816 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 12:05:46,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:46,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:46,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:47,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:47,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:47,397 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 12:05:47,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:47,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:47,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37550880] [2022-11-16 12:05:47,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37550880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:47,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:47,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:47,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750031585] [2022-11-16 12:05:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:47,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:47,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:47,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:47,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:47,400 INFO L87 Difference]: Start difference. First operand 229 states and 519 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:47,498 INFO L93 Difference]: Finished difference Result 365 states and 839 transitions. [2022-11-16 12:05:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:47,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:47,501 INFO L225 Difference]: With dead ends: 365 [2022-11-16 12:05:47,502 INFO L226 Difference]: Without dead ends: 332 [2022-11-16 12:05:47,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:47,505 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:47,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-16 12:05:47,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-11-16 12:05:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 227. [2022-11-16 12:05:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 225 states have (on average 2.28) internal successors, (513), 226 states have internal predecessors, (513), 0 states have call successors, (0), 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 12:05:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 513 transitions. [2022-11-16 12:05:47,519 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 513 transitions. Word has length 22 [2022-11-16 12:05:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:47,520 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 513 transitions. [2022-11-16 12:05:47,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 513 transitions. [2022-11-16 12:05:47,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:47,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:47,522 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] [2022-11-16 12:05:47,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:47,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:47,737 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:47,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:47,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1577904893, now seen corresponding path program 8 times [2022-11-16 12:05:47,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:47,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164545086] [2022-11-16 12:05:47,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:05:47,738 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 12:05:47,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:47,739 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:47,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:47,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:47,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:47,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:47,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:48,284 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 12:05:48,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:48,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:48,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164545086] [2022-11-16 12:05:48,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164545086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:48,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:48,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:48,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76310148] [2022-11-16 12:05:48,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:48,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:48,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:48,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:48,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:48,287 INFO L87 Difference]: Start difference. First operand 227 states and 513 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:48,392 INFO L93 Difference]: Finished difference Result 363 states and 833 transitions. [2022-11-16 12:05:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:48,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:48,394 INFO L225 Difference]: With dead ends: 363 [2022-11-16 12:05:48,394 INFO L226 Difference]: Without dead ends: 302 [2022-11-16 12:05:48,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:48,395 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:48,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 34 Unchecked, 0.1s Time] [2022-11-16 12:05:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-11-16 12:05:48,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 225. [2022-11-16 12:05:48,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 223 states have (on average 2.273542600896861) internal successors, (507), 224 states have internal predecessors, (507), 0 states have call successors, (0), 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 12:05:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 507 transitions. [2022-11-16 12:05:48,403 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 507 transitions. Word has length 22 [2022-11-16 12:05:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:48,403 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 507 transitions. [2022-11-16 12:05:48,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 507 transitions. [2022-11-16 12:05:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:48,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:48,405 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] [2022-11-16 12:05:48,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:48,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:48,617 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:48,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1413684163, now seen corresponding path program 9 times [2022-11-16 12:05:48,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:48,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763640735] [2022-11-16 12:05:48,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:05:48,618 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 12:05:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:48,619 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:48,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:48,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:05:48,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:48,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:48,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:49,156 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 12:05:49,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:49,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:49,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763640735] [2022-11-16 12:05:49,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763640735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:49,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:49,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:49,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142647440] [2022-11-16 12:05:49,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:49,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:49,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:49,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:49,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:49,158 INFO L87 Difference]: Start difference. First operand 225 states and 507 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:49,243 INFO L93 Difference]: Finished difference Result 361 states and 827 transitions. [2022-11-16 12:05:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:49,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:49,245 INFO L225 Difference]: With dead ends: 361 [2022-11-16 12:05:49,245 INFO L226 Difference]: Without dead ends: 272 [2022-11-16 12:05:49,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:49,246 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:49,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 32 Unchecked, 0.1s Time] [2022-11-16 12:05:49,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-16 12:05:49,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 223. [2022-11-16 12:05:49,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 221 states have (on average 2.266968325791855) internal successors, (501), 222 states have internal predecessors, (501), 0 states have call successors, (0), 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 12:05:49,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 501 transitions. [2022-11-16 12:05:49,254 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 501 transitions. Word has length 22 [2022-11-16 12:05:49,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:49,254 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 501 transitions. [2022-11-16 12:05:49,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 501 transitions. [2022-11-16 12:05:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:49,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:49,255 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] [2022-11-16 12:05:49,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:49,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:49,469 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:49,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:49,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1648888693, now seen corresponding path program 10 times [2022-11-16 12:05:49,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:49,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546379846] [2022-11-16 12:05:49,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:05:49,470 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 12:05:49,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:49,471 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:49,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:49,689 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:05:49,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:49,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:49,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:50,057 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 12:05:50,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:50,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:50,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546379846] [2022-11-16 12:05:50,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546379846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:50,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:50,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:50,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048970334] [2022-11-16 12:05:50,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:50,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:50,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:50,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:50,059 INFO L87 Difference]: Start difference. First operand 223 states and 501 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:50,155 INFO L93 Difference]: Finished difference Result 331 states and 748 transitions. [2022-11-16 12:05:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:50,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:50,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:50,157 INFO L225 Difference]: With dead ends: 331 [2022-11-16 12:05:50,158 INFO L226 Difference]: Without dead ends: 290 [2022-11-16 12:05:50,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:50,158 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:50,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-16 12:05:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-16 12:05:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 220. [2022-11-16 12:05:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 2.270642201834862) internal successors, (495), 219 states have internal predecessors, (495), 0 states have call successors, (0), 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 12:05:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 495 transitions. [2022-11-16 12:05:50,168 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 495 transitions. Word has length 22 [2022-11-16 12:05:50,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:50,168 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 495 transitions. [2022-11-16 12:05:50,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 495 transitions. [2022-11-16 12:05:50,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:50,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:50,169 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] [2022-11-16 12:05:50,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:50,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:50,392 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:50,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1508931801, now seen corresponding path program 11 times [2022-11-16 12:05:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:50,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445563229] [2022-11-16 12:05:50,393 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:05:50,393 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 12:05:50,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:50,394 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:50,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:50,586 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:50,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:50,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:50,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:50,890 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 12:05:50,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:50,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:50,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445563229] [2022-11-16 12:05:50,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445563229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:50,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:50,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:50,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628769557] [2022-11-16 12:05:50,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:50,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:50,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:50,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:50,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:50,893 INFO L87 Difference]: Start difference. First operand 220 states and 495 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:50,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:50,971 INFO L93 Difference]: Finished difference Result 328 states and 742 transitions. [2022-11-16 12:05:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:50,973 INFO L225 Difference]: With dead ends: 328 [2022-11-16 12:05:50,973 INFO L226 Difference]: Without dead ends: 252 [2022-11-16 12:05:50,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:50,974 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:50,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:05:50,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-16 12:05:50,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 217. [2022-11-16 12:05:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 2.2744186046511627) internal successors, (489), 216 states have internal predecessors, (489), 0 states have call successors, (0), 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 12:05:50,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 489 transitions. [2022-11-16 12:05:50,981 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 489 transitions. Word has length 22 [2022-11-16 12:05:50,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:50,982 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 489 transitions. [2022-11-16 12:05:50,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 489 transitions. [2022-11-16 12:05:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:50,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:50,983 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] [2022-11-16 12:05:51,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:51,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:51,195 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:51,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:51,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1210142681, now seen corresponding path program 12 times [2022-11-16 12:05:51,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:51,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729202268] [2022-11-16 12:05:51,197 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:05:51,197 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 12:05:51,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:51,198 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:51,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:51,369 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:05:51,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:51,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:51,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:51,682 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 12:05:51,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:51,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:51,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729202268] [2022-11-16 12:05:51,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729202268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:51,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:51,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115207079] [2022-11-16 12:05:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:51,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:51,684 INFO L87 Difference]: Start difference. First operand 217 states and 489 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:51,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:51,757 INFO L93 Difference]: Finished difference Result 325 states and 736 transitions. [2022-11-16 12:05:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:51,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:51,759 INFO L225 Difference]: With dead ends: 325 [2022-11-16 12:05:51,759 INFO L226 Difference]: Without dead ends: 214 [2022-11-16 12:05:51,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:51,760 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:51,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 27 Unchecked, 0.1s Time] [2022-11-16 12:05:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-16 12:05:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-11-16 12:05:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 2.2783018867924527) internal successors, (483), 213 states have internal predecessors, (483), 0 states have call successors, (0), 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 12:05:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 483 transitions. [2022-11-16 12:05:51,766 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 483 transitions. Word has length 22 [2022-11-16 12:05:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:51,766 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 483 transitions. [2022-11-16 12:05:51,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:51,767 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 483 transitions. [2022-11-16 12:05:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:51,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:51,768 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] [2022-11-16 12:05:51,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:51,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:51,980 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1947960485, now seen corresponding path program 13 times [2022-11-16 12:05:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:51,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476071235] [2022-11-16 12:05:51,981 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:05:51,981 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 12:05:51,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:51,982 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:51,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:52,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:52,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:52,470 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 12:05:52,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:52,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:52,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476071235] [2022-11-16 12:05:52,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476071235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:52,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:52,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:52,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504488791] [2022-11-16 12:05:52,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:52,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:52,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:52,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:52,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:52,473 INFO L87 Difference]: Start difference. First operand 214 states and 483 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:52,531 INFO L93 Difference]: Finished difference Result 364 states and 821 transitions. [2022-11-16 12:05:52,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:52,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:52,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:52,534 INFO L225 Difference]: With dead ends: 364 [2022-11-16 12:05:52,535 INFO L226 Difference]: Without dead ends: 340 [2022-11-16 12:05:52,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:52,536 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:52,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 24 Unchecked, 0.1s Time] [2022-11-16 12:05:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-16 12:05:52,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 231. [2022-11-16 12:05:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 229 states have (on average 2.2008733624454146) internal successors, (504), 230 states have internal predecessors, (504), 0 states have call successors, (0), 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 12:05:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 504 transitions. [2022-11-16 12:05:52,544 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 504 transitions. Word has length 22 [2022-11-16 12:05:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:52,544 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 504 transitions. [2022-11-16 12:05:52,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 504 transitions. [2022-11-16 12:05:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:52,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:52,546 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] [2022-11-16 12:05:52,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:52,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:52,765 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1465645046, now seen corresponding path program 3 times [2022-11-16 12:05:52,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:52,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320639997] [2022-11-16 12:05:52,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:05:52,766 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 12:05:52,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:52,766 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:52,913 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:05:52,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:52,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:52,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:53,286 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 12:05:53,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:53,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:53,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320639997] [2022-11-16 12:05:53,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320639997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:53,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:53,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:05:53,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494195337] [2022-11-16 12:05:53,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:53,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:05:53,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:53,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:05:53,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:05:53,292 INFO L87 Difference]: Start difference. First operand 231 states and 504 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:53,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:53,587 INFO L93 Difference]: Finished difference Result 274 states and 575 transitions. [2022-11-16 12:05:53,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:05:53,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:53,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:53,589 INFO L225 Difference]: With dead ends: 274 [2022-11-16 12:05:53,589 INFO L226 Difference]: Without dead ends: 256 [2022-11-16 12:05:53,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 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 12:05:53,591 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:53,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 36 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:05:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-16 12:05:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 195. [2022-11-16 12:05:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 2.2797927461139897) internal successors, (440), 194 states have internal predecessors, (440), 0 states have call successors, (0), 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 12:05:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 440 transitions. [2022-11-16 12:05:53,597 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 440 transitions. Word has length 22 [2022-11-16 12:05:53,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:53,598 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 440 transitions. [2022-11-16 12:05:53,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:53,598 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 440 transitions. [2022-11-16 12:05:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:53,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:53,599 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] [2022-11-16 12:05:53,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:53,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:53,806 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1002925359, now seen corresponding path program 14 times [2022-11-16 12:05:53,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:53,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467621120] [2022-11-16 12:05:53,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:05:53,807 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 12:05:53,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:53,808 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:53,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:54,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:54,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:54,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:54,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:54,350 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 12:05:54,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:54,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:54,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467621120] [2022-11-16 12:05:54,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467621120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:54,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:54,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:54,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077877804] [2022-11-16 12:05:54,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:54,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:54,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:54,352 INFO L87 Difference]: Start difference. First operand 195 states and 440 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:54,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:54,412 INFO L93 Difference]: Finished difference Result 328 states and 749 transitions. [2022-11-16 12:05:54,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:54,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:54,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:54,414 INFO L225 Difference]: With dead ends: 328 [2022-11-16 12:05:54,414 INFO L226 Difference]: Without dead ends: 268 [2022-11-16 12:05:54,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:54,415 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:54,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 21 Unchecked, 0.1s Time] [2022-11-16 12:05:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-16 12:05:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 194. [2022-11-16 12:05:54,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 192 states have (on average 2.28125) internal successors, (438), 193 states have internal predecessors, (438), 0 states have call successors, (0), 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 12:05:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 438 transitions. [2022-11-16 12:05:54,421 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 438 transitions. Word has length 22 [2022-11-16 12:05:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:54,422 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 438 transitions. [2022-11-16 12:05:54,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 438 transitions. [2022-11-16 12:05:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:54,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:54,423 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] [2022-11-16 12:05:54,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:54,635 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash -383169345, now seen corresponding path program 15 times [2022-11-16 12:05:54,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:54,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700193165] [2022-11-16 12:05:54,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:05:54,637 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 12:05:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:54,638 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:54,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:54,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:05:54,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:54,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:05:54,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:55,148 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 12:05:55,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:55,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700193165] [2022-11-16 12:05:55,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700193165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:55,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:55,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:55,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929488942] [2022-11-16 12:05:55,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:55,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:05:55,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:55,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:05:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:55,150 INFO L87 Difference]: Start difference. First operand 194 states and 438 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:55,200 INFO L93 Difference]: Finished difference Result 342 states and 771 transitions. [2022-11-16 12:05:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:55,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:05:55,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:55,203 INFO L225 Difference]: With dead ends: 342 [2022-11-16 12:05:55,203 INFO L226 Difference]: Without dead ends: 241 [2022-11-16 12:05:55,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:05:55,203 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:55,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-16 12:05:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-16 12:05:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2022-11-16 12:05:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 239 states have (on average 2.200836820083682) internal successors, (526), 240 states have internal predecessors, (526), 0 states have call successors, (0), 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 12:05:55,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 526 transitions. [2022-11-16 12:05:55,211 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 526 transitions. Word has length 22 [2022-11-16 12:05:55,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:55,211 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 526 transitions. [2022-11-16 12:05:55,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:05:55,212 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 526 transitions. [2022-11-16 12:05:55,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:05:55,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:55,213 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] [2022-11-16 12:05:55,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:55,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:55,425 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:05:55,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:55,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1415468342, now seen corresponding path program 4 times [2022-11-16 12:05:55,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:55,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398414739] [2022-11-16 12:05:55,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:05:55,426 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 12:05:55,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:55,428 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:55,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:55,574 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:05:55,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-16 12:05:55,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:05:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:05:55,712 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 12:05:55,713 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:05:55,714 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-16 12:05:55,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-16 12:05:55,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-16 12:05:55,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-16 12:05:55,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-16 12:05:55,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-16 12:05:55,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-16 12:05:55,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-16 12:05:55,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-16 12:05:55,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-16 12:05:55,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-16 12:05:55,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-16 12:05:55,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-16 12:05:55,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:55,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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 12:05:55,933 INFO L444 BasicCegarLoop]: Path program histogram: [15, 4, 1, 1, 1, 1, 1] [2022-11-16 12:05:55,937 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:05:55,938 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:05:56,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:05:56 BasicIcfg [2022-11-16 12:05:56,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:05:56,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:05:56,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:05:56,022 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:05:56,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:25" (3/4) ... [2022-11-16 12:05:56,025 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:05:56,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:05:56,026 INFO L158 Benchmark]: Toolchain (without parser) took 32850.06ms. Allocated memory was 62.9MB in the beginning and 172.0MB in the end (delta: 109.1MB). Free memory was 41.2MB in the beginning and 96.3MB in the end (delta: -55.1MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-11-16 12:05:56,026 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:05:56,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 803.70ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 33.4MB in the end (delta: 7.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:05:56,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.12ms. Allocated memory is still 62.9MB. Free memory was 33.4MB in the beginning and 30.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:56,027 INFO L158 Benchmark]: Boogie Preprocessor took 67.43ms. Allocated memory is still 62.9MB. Free memory was 30.7MB in the beginning and 28.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:05:56,028 INFO L158 Benchmark]: RCFGBuilder took 1043.59ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 28.6MB in the beginning and 59.1MB in the end (delta: -30.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-11-16 12:05:56,028 INFO L158 Benchmark]: TraceAbstraction took 30830.46ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 58.8MB in the beginning and 96.3MB in the end (delta: -37.6MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2022-11-16 12:05:56,028 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 172.0MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:05:56,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 803.70ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 33.4MB in the end (delta: 7.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.12ms. Allocated memory is still 62.9MB. Free memory was 33.4MB in the beginning and 30.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.43ms. Allocated memory is still 62.9MB. Free memory was 30.7MB in the beginning and 28.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1043.59ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 28.6MB in the beginning and 59.1MB in the end (delta: -30.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 30830.46ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 58.8MB in the beginning and 96.3MB in the end (delta: -37.6MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 172.0MB. Free memory is still 96.3MB. 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: 10.8s, 138 PlacesBefore, 44 PlacesAfterwards, 130 TransitionsBefore, 35 TransitionsAfterwards, 2364 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 127 TotalNumberOfCompositions, 5900 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3006, independent: 2840, independent conditional: 0, independent unconditional: 2840, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1680, independent: 1631, independent conditional: 0, independent unconditional: 1631, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1680, independent: 1618, independent conditional: 0, independent unconditional: 1618, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 485, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 462, dependent conditional: 0, dependent unconditional: 462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3006, independent: 1209, independent conditional: 0, independent unconditional: 1209, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 1680, unknown conditional: 0, unknown unconditional: 1680] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 168, Positive conditional cache size: 0, Positive unconditional cache size: 168, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L718] 0 int __unbuffered_p2_EBX = 0; [L725] 0 _Bool x$flush_delayed; [L736] 0 int *x$read_delayed_var; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L726] 0 int x$mem_tmp; [L712] 0 int __unbuffered_p0_EAX = 0; [L730] 0 _Bool x$r_buff0_thd3; [L728] 0 _Bool x$r_buff0_thd1; [L714] 0 int __unbuffered_p1_EAX = 0; [L729] 0 _Bool x$r_buff0_thd2; [L727] 0 _Bool x$r_buff0_thd0; [L720] 0 int a = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L735] 0 _Bool x$read_delayed; [L710] 0 int __unbuffered_cnt = 0; [L722] 0 _Bool main$tmp_guard1; [L740] 0 _Bool x$w_buff1_used; [L721] 0 _Bool main$tmp_guard0; [L738] 0 _Bool x$w_buff0_used; [L737] 0 int x$w_buff0; [L739] 0 int x$w_buff1; [L724] 0 int x = 0; [L732] 0 _Bool x$r_buff1_thd1; [L731] 0 _Bool x$r_buff1_thd0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L734] 0 _Bool x$r_buff1_thd3; [L733] 0 _Bool x$r_buff1_thd2; [L841] 0 pthread_t t916; [L842] FCALL, FORK 0 pthread_create(&t916, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t916, ((void *)0), P0, ((void *)0))=0, t916={-6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L843] 0 pthread_t t917; [L844] FCALL, FORK 0 pthread_create(&t917, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t917, ((void *)0), P1, ((void *)0))=1, t916={-6:0}, t917={-10:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L778] 2 x$w_buff1 = x$w_buff0 [L779] 2 x$w_buff0 = 1 [L780] 2 x$w_buff1_used = x$w_buff0_used [L781] 2 x$w_buff0_used = (_Bool)1 [L782] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L782] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L783] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L784] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L785] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L786] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L787] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L790] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L845] 0 pthread_t t918; [L846] FCALL, FORK 0 pthread_create(&t918, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t918, ((void *)0), P2, ((void *)0))=2, t916={-6:0}, t917={-10:0}, t918={-2:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L807] 3 y = 1 [L810] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L813] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L816] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L753] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L754] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L755] 1 x$flush_delayed = weak$$choice2 [L756] 1 x$mem_tmp = x [L757] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L758] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L759] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L760] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L761] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L762] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L763] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L764] 1 __unbuffered_p0_EAX = x [L765] 1 x = x$flush_delayed ? x$mem_tmp : x [L766] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L771] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 1 return 0; [L793] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L794] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L795] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L796] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L797] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L802] 2 return 0; [L819] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L820] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L821] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L822] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L823] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L826] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 3 return 0; [L848] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t916={-6:0}, t917={-10:0}, t918={-2:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L850] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L850] RET 0 assume_abort_if_not(main$tmp_guard0) [L852] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L853] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L854] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L855] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L856] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t916={-6:0}, t917={-10:0}, t918={-2:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L859] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L861] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - UnprovableResult [Line: 19]: 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: 839]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 842]: 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: 846]: 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: 844]: 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 7 procedures, 158 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 30.6s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 400 mSDsluCounter, 361 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 436 IncrementalHoareTripleChecker+Unchecked, 253 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1321 IncrementalHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 108 mSDtfsCounter, 1321 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 433 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1028occurred in iteration=0, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 1385 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 419 ConstructedInterpolants, 195 QuantifiedInterpolants, 10252 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3557 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 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 12:05:56,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aca8f250-223f-45ee-ae63-1b470251c381/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