./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:04:19,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:04:19,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-12-02 18:04:19,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:04:19,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:04:19,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:04:19,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:04:19,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:04:19,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:04:19,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:04:19,338 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:04:19,339 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:04:19,339 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:04:19,340 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:04:19,340 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:04:19,341 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:04:19,341 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:04:19,342 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:04:19,342 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:04:19,343 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:04:19,343 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:04:19,344 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:04:19,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 18:04:19,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 18:04:19,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:04:19,346 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:04:19,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:04:19,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:04:19,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:04:19,348 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 18:04:19,348 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 18:04:19,348 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 18:04:19,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:04:19,349 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:04:19,349 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:04:19,349 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:04:19,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:04:19,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:04:19,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:04:19,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:04:19,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:04:19,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:04:19,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:04:19,351 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:04:19,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:04:19,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:04:19,352 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:04:19,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:04:19,352 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 [2023-12-02 18:04:19,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:04:19,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:04:19,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:04:19,596 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:04:19,596 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:04:19,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2023-12-02 18:04:22,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:04:22,589 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:04:22,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2023-12-02 18:04:22,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data/cd524844c/d5a68cdba76e4f08b14574b3c75b4917/FLAG74313c925 [2023-12-02 18:04:22,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data/cd524844c/d5a68cdba76e4f08b14574b3c75b4917 [2023-12-02 18:04:22,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:04:22,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:04:22,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:04:22,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:04:22,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:04:22,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:22" (1/1) ... [2023-12-02 18:04:22,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da9a60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:22, skipping insertion in model container [2023-12-02 18:04:22,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:22" (1/1) ... [2023-12-02 18:04:22,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:04:23,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:04:23,014 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:04:23,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:04:23,105 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:04:23,105 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:04:23,113 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:04:23,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23 WrapperNode [2023-12-02 18:04:23,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:04:23,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:04:23,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:04:23,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:04:23,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,167 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-12-02 18:04:23,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:04:23,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:04:23,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:04:23,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:04:23,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:04:23,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:04:23,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:04:23,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:04:23,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (1/1) ... [2023-12-02 18:04:23,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:04:23,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:04:23,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:04:23,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:04:23,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:04:23,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 18:04:23,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:04:23,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:04:23,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:04:23,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 18:04:23,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 18:04:23,276 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 18:04:23,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 18:04:23,277 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 18:04:23,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 18:04:23,277 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-02 18:04:23,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-02 18:04:23,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:04:23,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 18:04:23,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:04:23,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:04:23,279 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 18:04:23,408 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:04:23,410 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:04:23,761 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:04:23,963 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:04:23,964 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 18:04:23,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:23 BoogieIcfgContainer [2023-12-02 18:04:23,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:04:23,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:04:23,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:04:23,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:04:23,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:04:22" (1/3) ... [2023-12-02 18:04:23,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f42e817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:23, skipping insertion in model container [2023-12-02 18:04:23,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:23" (2/3) ... [2023-12-02 18:04:23,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f42e817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:23, skipping insertion in model container [2023-12-02 18:04:23,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:23" (3/3) ... [2023-12-02 18:04:23,974 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2023-12-02 18:04:23,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:04:23,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-02 18:04:23,995 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 18:04:24,055 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 18:04:24,082 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 65 transitions, 146 flow [2023-12-02 18:04:25,683 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 41730 states, 41711 states have (on average 4.454436479585721) internal successors, (185799), 41729 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:25,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:04:25,704 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;@728356a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:04:25,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-12-02 18:04:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 41730 states, 41711 states have (on average 4.454436479585721) internal successors, (185799), 41729 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 18:04:25,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:25,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 18:04:25,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:25,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:25,766 INFO L85 PathProgramCache]: Analyzing trace with hash 14015, now seen corresponding path program 1 times [2023-12-02 18:04:25,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:25,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144141710] [2023-12-02 18:04:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:26,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144141710] [2023-12-02 18:04:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144141710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:26,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:26,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:04:26,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937352358] [2023-12-02 18:04:26,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:26,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:26,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:26,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:26,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:26,182 INFO L87 Difference]: Start difference. First operand has 41730 states, 41711 states have (on average 4.454436479585721) internal successors, (185799), 41729 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:27,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:27,041 INFO L93 Difference]: Finished difference Result 38985 states and 168109 transitions. [2023-12-02 18:04:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 18:04:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:27,542 INFO L225 Difference]: With dead ends: 38985 [2023-12-02 18:04:27,542 INFO L226 Difference]: Without dead ends: 38985 [2023-12-02 18:04:27,543 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 [2023-12-02 18:04:27,547 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 50 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:27,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 37 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38985 states. [2023-12-02 18:04:29,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38985 to 38985. [2023-12-02 18:04:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38985 states, 38967 states have (on average 4.314137603613314) internal successors, (168109), 38984 states have internal predecessors, (168109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38985 states to 38985 states and 168109 transitions. [2023-12-02 18:04:29,734 INFO L78 Accepts]: Start accepts. Automaton has 38985 states and 168109 transitions. Word has length 2 [2023-12-02 18:04:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:29,735 INFO L495 AbstractCegarLoop]: Abstraction has 38985 states and 168109 transitions. [2023-12-02 18:04:29,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 38985 states and 168109 transitions. [2023-12-02 18:04:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 18:04:29,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:29,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 18:04:29,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:04:29,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:29,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash 14016, now seen corresponding path program 1 times [2023-12-02 18:04:29,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:29,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611171898] [2023-12-02 18:04:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:29,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:29,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:29,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611171898] [2023-12-02 18:04:29,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611171898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:29,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:29,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:04:29,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048218469] [2023-12-02 18:04:29,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:29,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:29,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:29,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:29,844 INFO L87 Difference]: Start difference. First operand 38985 states and 168109 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:30,567 INFO L93 Difference]: Finished difference Result 38984 states and 168108 transitions. [2023-12-02 18:04:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:30,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 18:04:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:30,737 INFO L225 Difference]: With dead ends: 38984 [2023-12-02 18:04:30,737 INFO L226 Difference]: Without dead ends: 38984 [2023-12-02 18:04:30,738 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 [2023-12-02 18:04:30,739 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 49 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:30,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 38 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:31,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38984 states. [2023-12-02 18:04:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38984 to 38984. [2023-12-02 18:04:32,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38984 states, 38967 states have (on average 4.314111940873047) internal successors, (168108), 38983 states have internal predecessors, (168108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38984 states to 38984 states and 168108 transitions. [2023-12-02 18:04:32,396 INFO L78 Accepts]: Start accepts. Automaton has 38984 states and 168108 transitions. Word has length 2 [2023-12-02 18:04:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:32,396 INFO L495 AbstractCegarLoop]: Abstraction has 38984 states and 168108 transitions. [2023-12-02 18:04:32,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 38984 states and 168108 transitions. [2023-12-02 18:04:32,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:04:32,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:32,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:04:32,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:04:32,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:32,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:32,398 INFO L85 PathProgramCache]: Analyzing trace with hash 417954195, now seen corresponding path program 1 times [2023-12-02 18:04:32,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:32,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134230241] [2023-12-02 18:04:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:32,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:32,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:32,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134230241] [2023-12-02 18:04:32,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134230241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:32,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:32,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:32,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246176851] [2023-12-02 18:04:32,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:32,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:32,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:32,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:32,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:32,463 INFO L87 Difference]: Start difference. First operand 38984 states and 168108 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:04:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:32,835 INFO L93 Difference]: Finished difference Result 38976 states and 168093 transitions. [2023-12-02 18:04:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:32,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-12-02 18:04:32,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:33,360 INFO L225 Difference]: With dead ends: 38976 [2023-12-02 18:04:33,360 INFO L226 Difference]: Without dead ends: 38976 [2023-12-02 18:04:33,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:33,362 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 46 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:33,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 40 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:33,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38976 states. [2023-12-02 18:04:34,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38976 to 38976. [2023-12-02 18:04:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38976 states, 38961 states have (on average 4.314391314391314) internal successors, (168093), 38975 states have internal predecessors, (168093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38976 states to 38976 states and 168093 transitions. [2023-12-02 18:04:34,587 INFO L78 Accepts]: Start accepts. Automaton has 38976 states and 168093 transitions. Word has length 5 [2023-12-02 18:04:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:34,587 INFO L495 AbstractCegarLoop]: Abstraction has 38976 states and 168093 transitions. [2023-12-02 18:04:34,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:04:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38976 states and 168093 transitions. [2023-12-02 18:04:34,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:04:34,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:34,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:04:34,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:04:34,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:34,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:34,589 INFO L85 PathProgramCache]: Analyzing trace with hash 417954196, now seen corresponding path program 1 times [2023-12-02 18:04:34,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:34,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647537488] [2023-12-02 18:04:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:34,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:34,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:34,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647537488] [2023-12-02 18:04:34,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647537488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:34,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:34,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:34,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627432977] [2023-12-02 18:04:34,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:34,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:34,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:34,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:34,676 INFO L87 Difference]: Start difference. First operand 38976 states and 168093 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:04:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:35,376 INFO L93 Difference]: Finished difference Result 38968 states and 168078 transitions. [2023-12-02 18:04:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-12-02 18:04:35,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:35,546 INFO L225 Difference]: With dead ends: 38968 [2023-12-02 18:04:35,546 INFO L226 Difference]: Without dead ends: 38968 [2023-12-02 18:04:35,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:35,547 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 45 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:35,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 41 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:35,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38968 states. [2023-12-02 18:04:36,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38968 to 38968. [2023-12-02 18:04:36,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38968 states, 38955 states have (on average 4.314670773969965) internal successors, (168078), 38967 states have internal predecessors, (168078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38968 states to 38968 states and 168078 transitions. [2023-12-02 18:04:36,918 INFO L78 Accepts]: Start accepts. Automaton has 38968 states and 168078 transitions. Word has length 5 [2023-12-02 18:04:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:36,918 INFO L495 AbstractCegarLoop]: Abstraction has 38968 states and 168078 transitions. [2023-12-02 18:04:36,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:04:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 38968 states and 168078 transitions. [2023-12-02 18:04:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:04:36,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:36,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:04:36,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 18:04:36,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:36,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:36,920 INFO L85 PathProgramCache]: Analyzing trace with hash 417955832, now seen corresponding path program 1 times [2023-12-02 18:04:36,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:36,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525695178] [2023-12-02 18:04:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:36,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:37,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:37,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525695178] [2023-12-02 18:04:37,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525695178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:37,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:37,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:04:37,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886142588] [2023-12-02 18:04:37,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:37,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:37,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:37,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:37,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:37,031 INFO L87 Difference]: Start difference. First operand 38968 states and 168078 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) [2023-12-02 18:04:37,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:37,464 INFO L93 Difference]: Finished difference Result 33883 states and 145453 transitions. [2023-12-02 18:04:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:37,465 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 [2023-12-02 18:04:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:37,768 INFO L225 Difference]: With dead ends: 33883 [2023-12-02 18:04:37,769 INFO L226 Difference]: Without dead ends: 33197 [2023-12-02 18:04:37,769 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 [2023-12-02 18:04:37,770 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 39 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:37,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 54 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:37,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33197 states. [2023-12-02 18:04:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33197 to 33197. [2023-12-02 18:04:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33197 states, 33191 states have (on average 4.298153113795909) internal successors, (142660), 33196 states have internal predecessors, (142660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33197 states to 33197 states and 142660 transitions. [2023-12-02 18:04:39,104 INFO L78 Accepts]: Start accepts. Automaton has 33197 states and 142660 transitions. Word has length 5 [2023-12-02 18:04:39,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:39,104 INFO L495 AbstractCegarLoop]: Abstraction has 33197 states and 142660 transitions. [2023-12-02 18:04:39,104 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) [2023-12-02 18:04:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 33197 states and 142660 transitions. [2023-12-02 18:04:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 18:04:39,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:39,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:39,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 18:04:39,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:39,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 163662572, now seen corresponding path program 1 times [2023-12-02 18:04:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:39,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234836312] [2023-12-02 18:04:39,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:39,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:39,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:39,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234836312] [2023-12-02 18:04:39,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234836312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:39,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:39,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:39,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957145689] [2023-12-02 18:04:39,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:39,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:39,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:39,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:39,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:39,192 INFO L87 Difference]: Start difference. First operand 33197 states and 142660 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:39,463 INFO L93 Difference]: Finished difference Result 33148 states and 142527 transitions. [2023-12-02 18:04:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 18:04:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:39,605 INFO L225 Difference]: With dead ends: 33148 [2023-12-02 18:04:39,605 INFO L226 Difference]: Without dead ends: 33148 [2023-12-02 18:04:39,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:39,607 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 41 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:39,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 44 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33148 states. [2023-12-02 18:04:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33148 to 33148. [2023-12-02 18:04:40,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33148 states, 33143 states have (on average 4.300365084633256) internal successors, (142527), 33147 states have internal predecessors, (142527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:40,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33148 states to 33148 states and 142527 transitions. [2023-12-02 18:04:40,572 INFO L78 Accepts]: Start accepts. Automaton has 33148 states and 142527 transitions. Word has length 8 [2023-12-02 18:04:40,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:40,573 INFO L495 AbstractCegarLoop]: Abstraction has 33148 states and 142527 transitions. [2023-12-02 18:04:40,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 33148 states and 142527 transitions. [2023-12-02 18:04:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 18:04:40,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:40,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:40,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 18:04:40,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:40,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash 163662573, now seen corresponding path program 1 times [2023-12-02 18:04:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007304016] [2023-12-02 18:04:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:40,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:40,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007304016] [2023-12-02 18:04:40,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007304016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:40,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:40,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:40,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73595698] [2023-12-02 18:04:40,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:40,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:40,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:40,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:40,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:40,647 INFO L87 Difference]: Start difference. First operand 33148 states and 142527 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:41,174 INFO L93 Difference]: Finished difference Result 33099 states and 142394 transitions. [2023-12-02 18:04:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:41,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 18:04:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:41,354 INFO L225 Difference]: With dead ends: 33099 [2023-12-02 18:04:41,354 INFO L226 Difference]: Without dead ends: 33099 [2023-12-02 18:04:41,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:41,355 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:41,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 45 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33099 states. [2023-12-02 18:04:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33099 to 33099. [2023-12-02 18:04:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33099 states, 33095 states have (on average 4.302583471823539) internal successors, (142394), 33098 states have internal predecessors, (142394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33099 states to 33099 states and 142394 transitions. [2023-12-02 18:04:42,707 INFO L78 Accepts]: Start accepts. Automaton has 33099 states and 142394 transitions. Word has length 8 [2023-12-02 18:04:42,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:42,707 INFO L495 AbstractCegarLoop]: Abstraction has 33099 states and 142394 transitions. [2023-12-02 18:04:42,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 33099 states and 142394 transitions. [2023-12-02 18:04:42,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 18:04:42,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:42,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:42,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 18:04:42,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:42,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 884237190, now seen corresponding path program 1 times [2023-12-02 18:04:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231923507] [2023-12-02 18:04:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:42,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:42,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:42,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231923507] [2023-12-02 18:04:42,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231923507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:42,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:42,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763471982] [2023-12-02 18:04:42,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:42,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:42,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:42,758 INFO L87 Difference]: Start difference. First operand 33099 states and 142394 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:04:43,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:43,007 INFO L93 Difference]: Finished difference Result 32756 states and 141169 transitions. [2023-12-02 18:04:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:43,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) 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 [2023-12-02 18:04:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:43,122 INFO L225 Difference]: With dead ends: 32756 [2023-12-02 18:04:43,122 INFO L226 Difference]: Without dead ends: 32756 [2023-12-02 18:04:43,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:43,123 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 37 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:43,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 48 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:43,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32756 states. [2023-12-02 18:04:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32756 to 32756. [2023-12-02 18:04:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32756 states, 32753 states have (on average 4.3101089976490705) internal successors, (141169), 32755 states have internal predecessors, (141169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32756 states to 32756 states and 141169 transitions. [2023-12-02 18:04:44,126 INFO L78 Accepts]: Start accepts. Automaton has 32756 states and 141169 transitions. Word has length 11 [2023-12-02 18:04:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:44,126 INFO L495 AbstractCegarLoop]: Abstraction has 32756 states and 141169 transitions. [2023-12-02 18:04:44,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:04:44,126 INFO L276 IsEmpty]: Start isEmpty. Operand 32756 states and 141169 transitions. [2023-12-02 18:04:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 18:04:44,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:44,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:44,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 18:04:44,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:44,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash 884237191, now seen corresponding path program 1 times [2023-12-02 18:04:44,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:44,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444844965] [2023-12-02 18:04:44,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:44,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:44,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444844965] [2023-12-02 18:04:44,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444844965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:44,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:44,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:44,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446573095] [2023-12-02 18:04:44,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:44,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:04:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:44,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:04:44,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:44,195 INFO L87 Difference]: Start difference. First operand 32756 states and 141169 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:04:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:44,440 INFO L93 Difference]: Finished difference Result 32413 states and 139944 transitions. [2023-12-02 18:04:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:04:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) 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 [2023-12-02 18:04:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:44,548 INFO L225 Difference]: With dead ends: 32413 [2023-12-02 18:04:44,548 INFO L226 Difference]: Without dead ends: 32413 [2023-12-02 18:04:44,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:04:44,549 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 36 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:44,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:44,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32413 states. [2023-12-02 18:04:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32413 to 32413. [2023-12-02 18:04:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32413 states, 32411 states have (on average 4.317793341766684) internal successors, (139944), 32412 states have internal predecessors, (139944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32413 states to 32413 states and 139944 transitions. [2023-12-02 18:04:45,601 INFO L78 Accepts]: Start accepts. Automaton has 32413 states and 139944 transitions. Word has length 11 [2023-12-02 18:04:45,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:45,601 INFO L495 AbstractCegarLoop]: Abstraction has 32413 states and 139944 transitions. [2023-12-02 18:04:45,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:04:45,601 INFO L276 IsEmpty]: Start isEmpty. Operand 32413 states and 139944 transitions. [2023-12-02 18:04:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 18:04:45,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:45,616 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] [2023-12-02 18:04:45,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 18:04:45,616 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:45,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1460147544, now seen corresponding path program 1 times [2023-12-02 18:04:45,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:45,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703256281] [2023-12-02 18:04:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:45,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:46,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:46,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703256281] [2023-12-02 18:04:46,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703256281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:46,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:46,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 18:04:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765728885] [2023-12-02 18:04:46,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:46,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 18:04:46,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 18:04:46,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:04:46,716 INFO L87 Difference]: Start difference. First operand 32413 states and 139944 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 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) [2023-12-02 18:04:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:47,466 INFO L93 Difference]: Finished difference Result 30012 states and 129311 transitions. [2023-12-02 18:04:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:04:47,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 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 [2023-12-02 18:04:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:47,612 INFO L225 Difference]: With dead ends: 30012 [2023-12-02 18:04:47,612 INFO L226 Difference]: Without dead ends: 25210 [2023-12-02 18:04:47,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:04:47,613 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 105 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:47,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 321 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:04:47,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25210 states. [2023-12-02 18:04:48,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25210 to 25210. [2023-12-02 18:04:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25210 states, 25209 states have (on average 4.285969296679757) internal successors, (108045), 25209 states have internal predecessors, (108045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25210 states to 25210 states and 108045 transitions. [2023-12-02 18:04:48,564 INFO L78 Accepts]: Start accepts. Automaton has 25210 states and 108045 transitions. Word has length 21 [2023-12-02 18:04:48,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:48,565 INFO L495 AbstractCegarLoop]: Abstraction has 25210 states and 108045 transitions. [2023-12-02 18:04:48,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 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) [2023-12-02 18:04:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 25210 states and 108045 transitions. [2023-12-02 18:04:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 18:04:48,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:48,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:48,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 18:04:48,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:48,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:48,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1460146171, now seen corresponding path program 1 times [2023-12-02 18:04:48,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:48,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546451020] [2023-12-02 18:04:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:48,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:48,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:48,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546451020] [2023-12-02 18:04:48,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546451020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:48,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:48,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:04:48,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103867499] [2023-12-02 18:04:48,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:48,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:04:48,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:48,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:04:48,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:04:48,717 INFO L87 Difference]: Start difference. First operand 25210 states and 108045 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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) [2023-12-02 18:04:48,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:48,941 INFO L93 Difference]: Finished difference Result 22611 states and 91902 transitions. [2023-12-02 18:04:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:04:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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 [2023-12-02 18:04:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:49,009 INFO L225 Difference]: With dead ends: 22611 [2023-12-02 18:04:49,009 INFO L226 Difference]: Without dead ends: 20210 [2023-12-02 18:04:49,009 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 [2023-12-02 18:04:49,010 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 83 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:49,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 50 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:49,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20210 states. [2023-12-02 18:04:49,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20210 to 20210. [2023-12-02 18:04:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20210 states, 20209 states have (on average 4.1093077341778415) internal successors, (83045), 20209 states have internal predecessors, (83045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20210 states to 20210 states and 83045 transitions. [2023-12-02 18:04:49,740 INFO L78 Accepts]: Start accepts. Automaton has 20210 states and 83045 transitions. Word has length 21 [2023-12-02 18:04:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:49,740 INFO L495 AbstractCegarLoop]: Abstraction has 20210 states and 83045 transitions. [2023-12-02 18:04:49,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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) [2023-12-02 18:04:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 20210 states and 83045 transitions. [2023-12-02 18:04:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 18:04:49,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:49,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:49,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 18:04:49,755 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:49,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:49,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1989855334, now seen corresponding path program 1 times [2023-12-02 18:04:49,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:49,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852699771] [2023-12-02 18:04:49,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:49,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:49,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:49,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852699771] [2023-12-02 18:04:49,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852699771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:49,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:49,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:04:49,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574085916] [2023-12-02 18:04:49,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:49,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:04:49,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:04:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:04:49,911 INFO L87 Difference]: Start difference. First operand 20210 states and 83045 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:50,122 INFO L93 Difference]: Finished difference Result 13986 states and 53777 transitions. [2023-12-02 18:04:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:04:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-02 18:04:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:50,154 INFO L225 Difference]: With dead ends: 13986 [2023-12-02 18:04:50,154 INFO L226 Difference]: Without dead ends: 12210 [2023-12-02 18:04:50,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:04:50,155 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 152 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:50,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 62 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:04:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12210 states. [2023-12-02 18:04:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12210 to 12210. [2023-12-02 18:04:50,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12210 states, 12209 states have (on average 3.8533049389794414) internal successors, (47045), 12209 states have internal predecessors, (47045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:50,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12210 states to 12210 states and 47045 transitions. [2023-12-02 18:04:50,396 INFO L78 Accepts]: Start accepts. Automaton has 12210 states and 47045 transitions. Word has length 26 [2023-12-02 18:04:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:50,396 INFO L495 AbstractCegarLoop]: Abstraction has 12210 states and 47045 transitions. [2023-12-02 18:04:50,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 12210 states and 47045 transitions. [2023-12-02 18:04:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 18:04:50,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:50,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:50,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 18:04:50,412 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:50,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:50,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1445062454, now seen corresponding path program 1 times [2023-12-02 18:04:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:50,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394948192] [2023-12-02 18:04:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:50,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:50,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:50,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394948192] [2023-12-02 18:04:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394948192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:04:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992871857] [2023-12-02 18:04:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:50,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:04:50,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:50,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:04:50,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:04:50,636 INFO L87 Difference]: Start difference. First operand 12210 states and 47045 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:50,892 INFO L93 Difference]: Finished difference Result 8186 states and 30677 transitions. [2023-12-02 18:04:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:04:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-02 18:04:50,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:50,912 INFO L225 Difference]: With dead ends: 8186 [2023-12-02 18:04:50,912 INFO L226 Difference]: Without dead ends: 7410 [2023-12-02 18:04:50,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:04:50,912 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 208 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:50,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 76 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:04:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7410 states. [2023-12-02 18:04:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7410 to 7410. [2023-12-02 18:04:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7410 states, 7409 states have (on average 3.758266972600891) internal successors, (27845), 7409 states have internal predecessors, (27845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7410 states to 7410 states and 27845 transitions. [2023-12-02 18:04:51,173 INFO L78 Accepts]: Start accepts. Automaton has 7410 states and 27845 transitions. Word has length 31 [2023-12-02 18:04:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:51,174 INFO L495 AbstractCegarLoop]: Abstraction has 7410 states and 27845 transitions. [2023-12-02 18:04:51,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7410 states and 27845 transitions. [2023-12-02 18:04:51,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 18:04:51,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:51,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:51,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 18:04:51,188 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:51,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1106293246, now seen corresponding path program 1 times [2023-12-02 18:04:51,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:51,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756282817] [2023-12-02 18:04:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:51,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:51,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:51,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756282817] [2023-12-02 18:04:51,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756282817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:51,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:51,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:04:51,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398809987] [2023-12-02 18:04:51,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:51,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 18:04:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 18:04:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:04:51,422 INFO L87 Difference]: Start difference. First operand 7410 states and 27845 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:51,665 INFO L93 Difference]: Finished difference Result 6306 states and 23957 transitions. [2023-12-02 18:04:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:04:51,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2023-12-02 18:04:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:51,688 INFO L225 Difference]: With dead ends: 6306 [2023-12-02 18:04:51,688 INFO L226 Difference]: Without dead ends: 6130 [2023-12-02 18:04:51,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-02 18:04:51,689 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 216 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:51,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 68 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:04:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6130 states. [2023-12-02 18:04:51,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6130 to 6130. [2023-12-02 18:04:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6130 states, 6129 states have (on average 3.812204274759341) internal successors, (23365), 6129 states have internal predecessors, (23365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6130 states to 6130 states and 23365 transitions. [2023-12-02 18:04:51,854 INFO L78 Accepts]: Start accepts. Automaton has 6130 states and 23365 transitions. Word has length 36 [2023-12-02 18:04:51,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:51,854 INFO L495 AbstractCegarLoop]: Abstraction has 6130 states and 23365 transitions. [2023-12-02 18:04:51,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:51,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states and 23365 transitions. [2023-12-02 18:04:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:04:51,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:51,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:51,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 18:04:51,872 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:51,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1331919070, now seen corresponding path program 1 times [2023-12-02 18:04:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706563659] [2023-12-02 18:04:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:51,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:52,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:52,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706563659] [2023-12-02 18:04:52,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706563659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:52,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:52,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 18:04:52,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340880754] [2023-12-02 18:04:52,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:52,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 18:04:52,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:52,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 18:04:52,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:04:52,398 INFO L87 Difference]: Start difference. First operand 6130 states and 23365 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:52,973 INFO L93 Difference]: Finished difference Result 10406 states and 39320 transitions. [2023-12-02 18:04:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 18:04:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:04:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:52,996 INFO L225 Difference]: With dead ends: 10406 [2023-12-02 18:04:52,996 INFO L226 Difference]: Without dead ends: 7990 [2023-12-02 18:04:52,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-02 18:04:52,997 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 167 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:52,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 291 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:04:53,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2023-12-02 18:04:53,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 5074. [2023-12-02 18:04:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5074 states, 5073 states have (on average 3.7068795584466785) internal successors, (18805), 5073 states have internal predecessors, (18805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5074 states to 5074 states and 18805 transitions. [2023-12-02 18:04:53,216 INFO L78 Accepts]: Start accepts. Automaton has 5074 states and 18805 transitions. Word has length 41 [2023-12-02 18:04:53,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:53,216 INFO L495 AbstractCegarLoop]: Abstraction has 5074 states and 18805 transitions. [2023-12-02 18:04:53,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:53,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5074 states and 18805 transitions. [2023-12-02 18:04:53,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:04:53,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:53,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:53,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 18:04:53,231 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:53,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:53,231 INFO L85 PathProgramCache]: Analyzing trace with hash 787585144, now seen corresponding path program 2 times [2023-12-02 18:04:53,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:53,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954625409] [2023-12-02 18:04:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:53,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:55,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:55,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954625409] [2023-12-02 18:04:55,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954625409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:55,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:55,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-02 18:04:55,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597531775] [2023-12-02 18:04:55,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:55,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 18:04:55,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:55,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 18:04:55,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-12-02 18:04:55,263 INFO L87 Difference]: Start difference. First operand 5074 states and 18805 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:56,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:56,639 INFO L93 Difference]: Finished difference Result 14773 states and 53216 transitions. [2023-12-02 18:04:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 18:04:56,640 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:04:56,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:56,664 INFO L225 Difference]: With dead ends: 14773 [2023-12-02 18:04:56,664 INFO L226 Difference]: Without dead ends: 10273 [2023-12-02 18:04:56,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2023-12-02 18:04:56,665 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 328 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:56,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 651 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 18:04:56,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10273 states. [2023-12-02 18:04:56,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10273 to 5503. [2023-12-02 18:04:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 5502 states have (on average 3.6114140312613596) internal successors, (19870), 5502 states have internal predecessors, (19870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:56,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 19870 transitions. [2023-12-02 18:04:56,819 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 19870 transitions. Word has length 41 [2023-12-02 18:04:56,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:56,819 INFO L495 AbstractCegarLoop]: Abstraction has 5503 states and 19870 transitions. [2023-12-02 18:04:56,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 19870 transitions. [2023-12-02 18:04:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:04:56,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:56,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:56,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 18:04:56,831 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:56,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash 716762274, now seen corresponding path program 3 times [2023-12-02 18:04:56,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:56,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245315492] [2023-12-02 18:04:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:57,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:57,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245315492] [2023-12-02 18:04:57,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245315492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:57,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:57,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:04:57,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789435718] [2023-12-02 18:04:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:57,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:04:57,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:57,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:04:57,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:04:57,039 INFO L87 Difference]: Start difference. First operand 5503 states and 19870 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:57,258 INFO L93 Difference]: Finished difference Result 6529 states and 23263 transitions. [2023-12-02 18:04:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:04:57,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:04:57,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:57,267 INFO L225 Difference]: With dead ends: 6529 [2023-12-02 18:04:57,267 INFO L226 Difference]: Without dead ends: 3280 [2023-12-02 18:04:57,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:04:57,268 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:57,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 165 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:04:57,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2023-12-02 18:04:57,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 3280. [2023-12-02 18:04:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3280 states, 3279 states have (on average 3.479719426654468) internal successors, (11410), 3279 states have internal predecessors, (11410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3280 states to 3280 states and 11410 transitions. [2023-12-02 18:04:57,328 INFO L78 Accepts]: Start accepts. Automaton has 3280 states and 11410 transitions. Word has length 41 [2023-12-02 18:04:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:57,328 INFO L495 AbstractCegarLoop]: Abstraction has 3280 states and 11410 transitions. [2023-12-02 18:04:57,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3280 states and 11410 transitions. [2023-12-02 18:04:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:04:57,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:57,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:57,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 18:04:57,336 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:57,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:57,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1075635190, now seen corresponding path program 4 times [2023-12-02 18:04:57,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:57,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105976936] [2023-12-02 18:04:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:57,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:57,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:57,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105976936] [2023-12-02 18:04:57,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105976936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:57,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:57,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 18:04:57,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632432140] [2023-12-02 18:04:57,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:57,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 18:04:57,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:57,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 18:04:57,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-02 18:04:57,714 INFO L87 Difference]: Start difference. First operand 3280 states and 11410 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:58,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:58,253 INFO L93 Difference]: Finished difference Result 8063 states and 27823 transitions. [2023-12-02 18:04:58,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 18:04:58,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:04:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:58,264 INFO L225 Difference]: With dead ends: 8063 [2023-12-02 18:04:58,264 INFO L226 Difference]: Without dead ends: 4058 [2023-12-02 18:04:58,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2023-12-02 18:04:58,265 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 250 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:58,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 431 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:04:58,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2023-12-02 18:04:58,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 2359. [2023-12-02 18:04:58,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2358 states have (on average 3.393553859202714) internal successors, (8002), 2358 states have internal predecessors, (8002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 8002 transitions. [2023-12-02 18:04:58,316 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 8002 transitions. Word has length 41 [2023-12-02 18:04:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:58,317 INFO L495 AbstractCegarLoop]: Abstraction has 2359 states and 8002 transitions. [2023-12-02 18:04:58,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 8002 transitions. [2023-12-02 18:04:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:04:58,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:58,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:58,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 18:04:58,322 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:58,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:58,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1041909252, now seen corresponding path program 5 times [2023-12-02 18:04:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:58,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080100293] [2023-12-02 18:04:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:58,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:04:59,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:59,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080100293] [2023-12-02 18:04:59,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080100293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:59,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:59,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 18:04:59,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270374795] [2023-12-02 18:04:59,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:59,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 18:04:59,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:59,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 18:04:59,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-02 18:04:59,256 INFO L87 Difference]: Start difference. First operand 2359 states and 8002 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:59,685 INFO L93 Difference]: Finished difference Result 4090 states and 13799 transitions. [2023-12-02 18:04:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 18:04:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:04:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:59,694 INFO L225 Difference]: With dead ends: 4090 [2023-12-02 18:04:59,694 INFO L226 Difference]: Without dead ends: 3231 [2023-12-02 18:04:59,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-02 18:04:59,695 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 91 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:59,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 325 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:04:59,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2023-12-02 18:04:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 2557. [2023-12-02 18:04:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 3.366588419405321) internal successors, (8605), 2556 states have internal predecessors, (8605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 8605 transitions. [2023-12-02 18:04:59,760 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 8605 transitions. Word has length 41 [2023-12-02 18:04:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:59,760 INFO L495 AbstractCegarLoop]: Abstraction has 2557 states and 8605 transitions. [2023-12-02 18:04:59,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:04:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 8605 transitions. [2023-12-02 18:04:59,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:04:59,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:59,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:59,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 18:04:59,767 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:04:59,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:59,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1845380794, now seen corresponding path program 6 times [2023-12-02 18:04:59,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:59,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256412677] [2023-12-02 18:04:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:59,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:04:59,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:04:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:04:59,907 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:04:59,907 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:04:59,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-12-02 18:04:59,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-12-02 18:04:59,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-12-02 18:04:59,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-12-02 18:04:59,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-12-02 18:04:59,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-12-02 18:04:59,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-12-02 18:04:59,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-12-02 18:04:59,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-12-02 18:04:59,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-12-02 18:04:59,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 18:04:59,915 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:04:59,921 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 18:04:59,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:04:59,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 18:04:59,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-12-02 18:04:59,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-12-02 18:04:59,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-12-02 18:05:00,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 18:05:00,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 18:05:00,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:05:00 BasicIcfg [2023-12-02 18:05:00,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:05:00,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:05:00,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:05:00,024 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:05:00,024 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:23" (3/4) ... [2023-12-02 18:05:00,026 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:05:00,027 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:05:00,027 INFO L158 Benchmark]: Toolchain (without parser) took 37404.97ms. Allocated memory was 172.0MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 130.9MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2023-12-02 18:05:00,028 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:00,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.17ms. Allocated memory is still 172.0MB. Free memory was 130.7MB in the beginning and 106.2MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 18:05:00,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.22ms. Allocated memory is still 172.0MB. Free memory was 106.2MB in the beginning and 103.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:00,029 INFO L158 Benchmark]: Boogie Preprocessor took 34.82ms. Allocated memory is still 172.0MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:00,029 INFO L158 Benchmark]: RCFGBuilder took 760.47ms. Allocated memory was 172.0MB in the beginning and 239.1MB in the end (delta: 67.1MB). Free memory was 101.5MB in the beginning and 173.9MB in the end (delta: -72.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-12-02 18:05:00,030 INFO L158 Benchmark]: TraceAbstraction took 36055.79ms. Allocated memory was 239.1MB in the beginning and 13.9GB in the end (delta: 13.6GB). Free memory was 172.8MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2023-12-02 18:05:00,030 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 13.9GB. Free memory is still 10.4GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:00,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.17ms. Allocated memory is still 172.0MB. Free memory was 130.7MB in the beginning and 106.2MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.22ms. Allocated memory is still 172.0MB. Free memory was 106.2MB in the beginning and 103.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.82ms. Allocated memory is still 172.0MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 760.47ms. Allocated memory was 172.0MB in the beginning and 239.1MB in the end (delta: 67.1MB). Free memory was 101.5MB in the beginning and 173.9MB in the end (delta: -72.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 36055.79ms. Allocated memory was 239.1MB in the beginning and 13.9GB in the end (delta: 13.6GB). Free memory was 172.8MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 13.9GB. Free memory is still 10.4GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int a = 0; [L719] 0 _Bool a$flush_delayed; [L720] 0 int a$mem_tmp; [L721] 0 _Bool a$r_buff0_thd0; [L722] 0 _Bool a$r_buff0_thd1; [L723] 0 _Bool a$r_buff0_thd2; [L724] 0 _Bool a$r_buff0_thd3; [L725] 0 _Bool a$r_buff0_thd4; [L726] 0 _Bool a$r_buff1_thd0; [L727] 0 _Bool a$r_buff1_thd1; [L728] 0 _Bool a$r_buff1_thd2; [L729] 0 _Bool a$r_buff1_thd3; [L730] 0 _Bool a$r_buff1_thd4; [L731] 0 _Bool a$read_delayed; [L732] 0 int *a$read_delayed_var; [L733] 0 int a$w_buff0; [L734] 0 _Bool a$w_buff0_used; [L735] 0 int a$w_buff1; [L736] 0 _Bool a$w_buff1_used; [L737] 0 _Bool main$tmp_guard0; [L738] 0 _Bool main$tmp_guard1; [L740] 0 int x = 0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L861] 0 pthread_t t1353; [L862] FCALL, FORK 0 pthread_create(&t1353, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1353={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L863] 0 pthread_t t1354; [L750] 1 a$w_buff1 = a$w_buff0 [L751] 1 a$w_buff0 = 1 [L752] 1 a$w_buff1_used = a$w_buff0_used [L753] 1 a$w_buff0_used = (_Bool)1 [L754] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L754] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L755] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L756] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L757] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L758] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L759] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L864] FCALL, FORK 0 pthread_create(&t1354, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L865] 0 pthread_t t1355; [L866] FCALL, FORK 0 pthread_create(&t1355, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L867] 0 pthread_t t1356; [L868] FCALL, FORK 0 pthread_create(&t1356, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L786] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L787] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L788] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L789] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L790] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L800] 3 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L806] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L807] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L808] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L809] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L810] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L820] 4 z = 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 a$flush_delayed = weak$$choice2 [L826] 4 a$mem_tmp = a [L827] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L828] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L829] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L830] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L831] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L833] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = a [L835] 4 a = a$flush_delayed ? a$mem_tmp : a [L836] 4 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y=1, z=1] [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y=1, z=1] [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y=1, z=1] [L839] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L840] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L841] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L842] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L843] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=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$$choice2=1, x=2, y=1, z=1] [L846] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y=1, z=1] [L870] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice2=1, x=2, y=1, z=1] [L872] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L872] RET 0 assume_abort_if_not(main$tmp_guard0) [L874] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L875] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L876] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L877] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L878] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice2=1, x=2, y=1, z=1] [L881] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice2=1, x=2, y=1, z=1] [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=2, y=1, z=1] [L17] 0 __assert_fail ("0", "mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=2, y=1, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 868]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 866]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 97 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 35.8s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.2s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2039 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2039 mSDsluCounter, 2836 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2182 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3623 IncrementalHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 654 mSDtfsCounter, 3623 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41730occurred in iteration=0, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 10059 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 3456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 [2023-12-02 18:05:00,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:05:02,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:05:02,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-12-02 18:05:02,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:05:02,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:05:02,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:05:02,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:05:02,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:05:02,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:05:02,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:05:02,382 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:05:02,383 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:05:02,383 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:05:02,384 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:05:02,384 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:05:02,385 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:05:02,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 18:05:02,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 18:05:02,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:05:02,388 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:05:02,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:05:02,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:05:02,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:05:02,390 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 18:05:02,390 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 18:05:02,391 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 18:05:02,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:05:02,391 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:05:02,392 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:05:02,392 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:05:02,393 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:05:02,393 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:05:02,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:05:02,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:05:02,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:05:02,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:05:02,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:05:02,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:05:02,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:05:02,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:05:02,395 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:05:02,396 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:05:02,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:05:02,396 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:05:02,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:05:02,397 INFO L153 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_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/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_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 [2023-12-02 18:05:02,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:05:02,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:05:02,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:05:02,699 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:05:02,699 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:05:02,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2023-12-02 18:05:05,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:05:05,701 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:05:05,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2023-12-02 18:05:05,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data/c3d27e57a/0558b31eef7c490992b356f23fcf918a/FLAG0ed211c96 [2023-12-02 18:05:05,735 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/data/c3d27e57a/0558b31eef7c490992b356f23fcf918a [2023-12-02 18:05:05,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:05:05,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:05:05,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:05:05,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:05:05,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:05:05,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:05" (1/1) ... [2023-12-02 18:05:05,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e301828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:05, skipping insertion in model container [2023-12-02 18:05:05,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:05" (1/1) ... [2023-12-02 18:05:05,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:05:06,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:05:06,179 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:05:06,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:05:06,297 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:05:06,297 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:05:06,305 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:05:06,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06 WrapperNode [2023-12-02 18:05:06,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:05:06,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:05:06,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:05:06,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:05:06,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,388 INFO L138 Inliner]: procedures = 180, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-12-02 18:05:06,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:05:06,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:05:06,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:05:06,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:05:06,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:05:06,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:05:06,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:05:06,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:05:06,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (1/1) ... [2023-12-02 18:05:06,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:05:06,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:05:06,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:05:06,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:05:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 18:05:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:05:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:05:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:05:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 18:05:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:05:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 18:05:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 18:05:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 18:05:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 18:05:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 18:05:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 18:05:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-02 18:05:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-02 18:05:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 18:05:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:05:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:05:06,497 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 18:05:06,660 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:05:06,662 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:05:07,029 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:05:07,254 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:05:07,254 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 18:05:07,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:07 BoogieIcfgContainer [2023-12-02 18:05:07,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:05:07,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:05:07,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:05:07,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:05:07,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:05:05" (1/3) ... [2023-12-02 18:05:07,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b039b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:07, skipping insertion in model container [2023-12-02 18:05:07,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:06" (2/3) ... [2023-12-02 18:05:07,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b039b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:07, skipping insertion in model container [2023-12-02 18:05:07,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:07" (3/3) ... [2023-12-02 18:05:07,263 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2023-12-02 18:05:07,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:05:07,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-02 18:05:07,283 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 18:05:07,343 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 18:05:07,372 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 65 transitions, 146 flow [2023-12-02 18:05:08,953 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 41730 states, 41711 states have (on average 4.454436479585721) internal successors, (185799), 41729 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:08,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:05:08,975 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;@25bc305e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:05:08,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-12-02 18:05:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 41730 states, 41711 states have (on average 4.454436479585721) internal successors, (185799), 41729 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 18:05:09,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:09,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 18:05:09,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:09,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash 14079, now seen corresponding path program 1 times [2023-12-02 18:05:09,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:09,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193134394] [2023-12-02 18:05:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:09,077 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 [2023-12-02 18:05:09,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:09,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:09,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:09,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:05:09,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:09,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 18:05:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:09,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:09,256 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193134394] [2023-12-02 18:05:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193134394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:09,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:09,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:05:09,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883403094] [2023-12-02 18:05:09,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:09,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:09,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:09,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:09,334 INFO L87 Difference]: Start difference. First operand has 41730 states, 41711 states have (on average 4.454436479585721) internal successors, (185799), 41729 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:10,258 INFO L93 Difference]: Finished difference Result 38985 states and 168109 transitions. [2023-12-02 18:05:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:10,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 18:05:10,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:10,796 INFO L225 Difference]: With dead ends: 38985 [2023-12-02 18:05:10,796 INFO L226 Difference]: Without dead ends: 38985 [2023-12-02 18:05:10,797 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 [2023-12-02 18:05:10,800 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 50 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:10,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 37 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:10,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38985 states. [2023-12-02 18:05:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38985 to 38985. [2023-12-02 18:05:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38985 states, 38967 states have (on average 4.314137603613314) internal successors, (168109), 38984 states have internal predecessors, (168109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:12,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38985 states to 38985 states and 168109 transitions. [2023-12-02 18:05:12,984 INFO L78 Accepts]: Start accepts. Automaton has 38985 states and 168109 transitions. Word has length 2 [2023-12-02 18:05:12,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:12,985 INFO L495 AbstractCegarLoop]: Abstraction has 38985 states and 168109 transitions. [2023-12-02 18:05:12,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 38985 states and 168109 transitions. [2023-12-02 18:05:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 18:05:12,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:12,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 18:05:12,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:13,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:13,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:13,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:13,188 INFO L85 PathProgramCache]: Analyzing trace with hash 14080, now seen corresponding path program 1 times [2023-12-02 18:05:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:13,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260137279] [2023-12-02 18:05:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:13,189 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 [2023-12-02 18:05:13,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:13,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:13,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:13,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:05:13,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:13,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 18:05:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:13,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:13,286 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:13,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260137279] [2023-12-02 18:05:13,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260137279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:13,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:13,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:05:13,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864409110] [2023-12-02 18:05:13,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:13,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:13,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:13,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:13,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:13,290 INFO L87 Difference]: Start difference. First operand 38985 states and 168109 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:14,261 INFO L93 Difference]: Finished difference Result 38984 states and 168108 transitions. [2023-12-02 18:05:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:14,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 18:05:14,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:14,514 INFO L225 Difference]: With dead ends: 38984 [2023-12-02 18:05:14,514 INFO L226 Difference]: Without dead ends: 38984 [2023-12-02 18:05:14,514 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 [2023-12-02 18:05:14,516 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 49 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:14,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 38 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38984 states. [2023-12-02 18:05:15,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38984 to 38984. [2023-12-02 18:05:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38984 states, 38967 states have (on average 4.314111940873047) internal successors, (168108), 38983 states have internal predecessors, (168108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38984 states to 38984 states and 168108 transitions. [2023-12-02 18:05:16,199 INFO L78 Accepts]: Start accepts. Automaton has 38984 states and 168108 transitions. Word has length 2 [2023-12-02 18:05:16,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:16,200 INFO L495 AbstractCegarLoop]: Abstraction has 38984 states and 168108 transitions. [2023-12-02 18:05:16,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 38984 states and 168108 transitions. [2023-12-02 18:05:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:05:16,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:16,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:05:16,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:16,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:16,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:16,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash 419864727, now seen corresponding path program 1 times [2023-12-02 18:05:16,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:16,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903606661] [2023-12-02 18:05:16,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:16,405 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 [2023-12-02 18:05:16,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:16,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:16,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:16,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:05:16,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:16,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 18:05:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:16,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:16,500 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:16,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903606661] [2023-12-02 18:05:16,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903606661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:16,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:16,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:16,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3208881] [2023-12-02 18:05:16,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:16,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:16,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:16,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:16,503 INFO L87 Difference]: Start difference. First operand 38984 states and 168108 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:05:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:16,906 INFO L93 Difference]: Finished difference Result 38976 states and 168093 transitions. [2023-12-02 18:05:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:16,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-12-02 18:05:16,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:17,321 INFO L225 Difference]: With dead ends: 38976 [2023-12-02 18:05:17,321 INFO L226 Difference]: Without dead ends: 38976 [2023-12-02 18:05:17,321 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 [2023-12-02 18:05:17,323 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 46 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 40 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:17,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38976 states. [2023-12-02 18:05:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38976 to 38976. [2023-12-02 18:05:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38976 states, 38961 states have (on average 4.314391314391314) internal successors, (168093), 38975 states have internal predecessors, (168093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:18,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38976 states to 38976 states and 168093 transitions. [2023-12-02 18:05:18,544 INFO L78 Accepts]: Start accepts. Automaton has 38976 states and 168093 transitions. Word has length 5 [2023-12-02 18:05:18,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:18,545 INFO L495 AbstractCegarLoop]: Abstraction has 38976 states and 168093 transitions. [2023-12-02 18:05:18,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:05:18,545 INFO L276 IsEmpty]: Start isEmpty. Operand 38976 states and 168093 transitions. [2023-12-02 18:05:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:05:18,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:18,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:05:18,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:18,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:18,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:18,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash 419864728, now seen corresponding path program 1 times [2023-12-02 18:05:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:18,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132647214] [2023-12-02 18:05:18,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:18,748 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 [2023-12-02 18:05:18,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:18,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:18,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:18,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:05:18,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:18,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 18:05:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:18,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:18,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:18,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132647214] [2023-12-02 18:05:18,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132647214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:18,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:18,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:18,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619834129] [2023-12-02 18:05:18,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:18,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:18,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:18,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:18,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:18,859 INFO L87 Difference]: Start difference. First operand 38976 states and 168093 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:05:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:19,512 INFO L93 Difference]: Finished difference Result 38968 states and 168078 transitions. [2023-12-02 18:05:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-12-02 18:05:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:19,714 INFO L225 Difference]: With dead ends: 38968 [2023-12-02 18:05:19,714 INFO L226 Difference]: Without dead ends: 38968 [2023-12-02 18:05:19,714 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 [2023-12-02 18:05:19,715 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 45 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:19,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 41 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:19,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38968 states. [2023-12-02 18:05:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38968 to 38968. [2023-12-02 18:05:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38968 states, 38955 states have (on average 4.314670773969965) internal successors, (168078), 38967 states have internal predecessors, (168078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:21,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38968 states to 38968 states and 168078 transitions. [2023-12-02 18:05:21,135 INFO L78 Accepts]: Start accepts. Automaton has 38968 states and 168078 transitions. Word has length 5 [2023-12-02 18:05:21,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:21,135 INFO L495 AbstractCegarLoop]: Abstraction has 38968 states and 168078 transitions. [2023-12-02 18:05:21,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-12-02 18:05:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 38968 states and 168078 transitions. [2023-12-02 18:05:21,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 18:05:21,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:21,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 18:05:21,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:21,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:21,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:21,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 419866364, now seen corresponding path program 1 times [2023-12-02 18:05:21,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:21,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482366438] [2023-12-02 18:05:21,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:21,340 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 [2023-12-02 18:05:21,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:21,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:21,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:21,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 18:05:21,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:21,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:21,428 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:21,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482366438] [2023-12-02 18:05:21,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482366438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:21,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:21,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 18:05:21,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049916603] [2023-12-02 18:05:21,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:21,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:21,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:21,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:21,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:21,431 INFO L87 Difference]: Start difference. First operand 38968 states and 168078 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) [2023-12-02 18:05:21,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:21,707 INFO L93 Difference]: Finished difference Result 33883 states and 145453 transitions. [2023-12-02 18:05:21,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:21,708 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 [2023-12-02 18:05:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:21,855 INFO L225 Difference]: With dead ends: 33883 [2023-12-02 18:05:21,856 INFO L226 Difference]: Without dead ends: 33197 [2023-12-02 18:05:21,856 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 [2023-12-02 18:05:21,857 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 39 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:21,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 54 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33197 states. [2023-12-02 18:05:22,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33197 to 33197. [2023-12-02 18:05:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33197 states, 33191 states have (on average 4.298153113795909) internal successors, (142660), 33196 states have internal predecessors, (142660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33197 states to 33197 states and 142660 transitions. [2023-12-02 18:05:23,082 INFO L78 Accepts]: Start accepts. Automaton has 33197 states and 142660 transitions. Word has length 5 [2023-12-02 18:05:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:23,083 INFO L495 AbstractCegarLoop]: Abstraction has 33197 states and 142660 transitions. [2023-12-02 18:05:23,083 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) [2023-12-02 18:05:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 33197 states and 142660 transitions. [2023-12-02 18:05:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 18:05:23,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:23,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:23,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:23,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:23,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:23,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1245750444, now seen corresponding path program 1 times [2023-12-02 18:05:23,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:23,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907150404] [2023-12-02 18:05:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:23,285 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 [2023-12-02 18:05:23,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:23,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:23,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:23,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:05:23,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:23,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 18:05:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:23,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:23,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:23,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907150404] [2023-12-02 18:05:23,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907150404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:23,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:23,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:23,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761921161] [2023-12-02 18:05:23,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:23,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:23,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:23,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:23,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:23,379 INFO L87 Difference]: Start difference. First operand 33197 states and 142660 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:23,934 INFO L93 Difference]: Finished difference Result 33148 states and 142527 transitions. [2023-12-02 18:05:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 18:05:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:24,072 INFO L225 Difference]: With dead ends: 33148 [2023-12-02 18:05:24,072 INFO L226 Difference]: Without dead ends: 33148 [2023-12-02 18:05:24,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:24,073 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 41 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:24,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 44 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:24,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33148 states. [2023-12-02 18:05:24,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33148 to 33148. [2023-12-02 18:05:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33148 states, 33143 states have (on average 4.300365084633256) internal successors, (142527), 33147 states have internal predecessors, (142527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33148 states to 33148 states and 142527 transitions. [2023-12-02 18:05:25,103 INFO L78 Accepts]: Start accepts. Automaton has 33148 states and 142527 transitions. Word has length 8 [2023-12-02 18:05:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:25,104 INFO L495 AbstractCegarLoop]: Abstraction has 33148 states and 142527 transitions. [2023-12-02 18:05:25,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 33148 states and 142527 transitions. [2023-12-02 18:05:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 18:05:25,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:25,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:25,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:25,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:25,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:25,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1245750445, now seen corresponding path program 1 times [2023-12-02 18:05:25,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:25,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386015075] [2023-12-02 18:05:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:25,306 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 [2023-12-02 18:05:25,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:25,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:25,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:25,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:05:25,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:25,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 18:05:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:25,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:25,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:25,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386015075] [2023-12-02 18:05:25,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386015075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:25,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:25,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:25,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525536478] [2023-12-02 18:05:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:25,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:25,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:25,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:25,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:25,404 INFO L87 Difference]: Start difference. First operand 33148 states and 142527 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:25,678 INFO L93 Difference]: Finished difference Result 33099 states and 142394 transitions. [2023-12-02 18:05:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:25,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 18:05:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:25,795 INFO L225 Difference]: With dead ends: 33099 [2023-12-02 18:05:25,795 INFO L226 Difference]: Without dead ends: 33099 [2023-12-02 18:05:25,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:25,796 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:25,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 45 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33099 states. [2023-12-02 18:05:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33099 to 33099. [2023-12-02 18:05:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33099 states, 33095 states have (on average 4.302583471823539) internal successors, (142394), 33098 states have internal predecessors, (142394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33099 states to 33099 states and 142394 transitions. [2023-12-02 18:05:26,824 INFO L78 Accepts]: Start accepts. Automaton has 33099 states and 142394 transitions. Word has length 8 [2023-12-02 18:05:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:26,825 INFO L495 AbstractCegarLoop]: Abstraction has 33099 states and 142394 transitions. [2023-12-02 18:05:26,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:26,825 INFO L276 IsEmpty]: Start isEmpty. Operand 33099 states and 142394 transitions. [2023-12-02 18:05:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 18:05:26,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:26,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:26,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:27,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:27,027 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:27,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash -660495614, now seen corresponding path program 1 times [2023-12-02 18:05:27,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:27,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343329535] [2023-12-02 18:05:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:27,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:27,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:27,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:27,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:27,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:05:27,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:27,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-12-02 18:05:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:27,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:27,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343329535] [2023-12-02 18:05:27,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343329535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:27,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:27,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:27,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275409094] [2023-12-02 18:05:27,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:27,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:27,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:27,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:27,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:27,119 INFO L87 Difference]: Start difference. First operand 33099 states and 142394 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:05:27,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:27,703 INFO L93 Difference]: Finished difference Result 32756 states and 141169 transitions. [2023-12-02 18:05:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:27,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) 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 [2023-12-02 18:05:27,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:27,847 INFO L225 Difference]: With dead ends: 32756 [2023-12-02 18:05:27,847 INFO L226 Difference]: Without dead ends: 32756 [2023-12-02 18:05:27,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:27,848 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 37 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:27,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 48 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32756 states. [2023-12-02 18:05:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32756 to 32756. [2023-12-02 18:05:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32756 states, 32753 states have (on average 4.3101089976490705) internal successors, (141169), 32755 states have internal predecessors, (141169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32756 states to 32756 states and 141169 transitions. [2023-12-02 18:05:29,103 INFO L78 Accepts]: Start accepts. Automaton has 32756 states and 141169 transitions. Word has length 11 [2023-12-02 18:05:29,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:29,103 INFO L495 AbstractCegarLoop]: Abstraction has 32756 states and 141169 transitions. [2023-12-02 18:05:29,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:05:29,103 INFO L276 IsEmpty]: Start isEmpty. Operand 32756 states and 141169 transitions. [2023-12-02 18:05:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 18:05:29,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:29,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:29,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:29,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:29,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:29,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:29,306 INFO L85 PathProgramCache]: Analyzing trace with hash -660495613, now seen corresponding path program 1 times [2023-12-02 18:05:29,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:29,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084051725] [2023-12-02 18:05:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:29,307 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 [2023-12-02 18:05:29,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:29,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:29,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:29,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:05:29,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:29,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 18:05:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:29,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:29,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:29,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084051725] [2023-12-02 18:05:29,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084051725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:29,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:29,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:29,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405558889] [2023-12-02 18:05:29,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:29,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:05:29,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:29,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:05:29,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:29,435 INFO L87 Difference]: Start difference. First operand 32756 states and 141169 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:05:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:29,793 INFO L93 Difference]: Finished difference Result 32413 states and 139944 transitions. [2023-12-02 18:05:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:05:29,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) 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 [2023-12-02 18:05:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:29,914 INFO L225 Difference]: With dead ends: 32413 [2023-12-02 18:05:29,915 INFO L226 Difference]: Without dead ends: 32413 [2023-12-02 18:05:29,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:05:29,915 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 36 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:29,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32413 states. [2023-12-02 18:05:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32413 to 32413. [2023-12-02 18:05:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32413 states, 32411 states have (on average 4.317793341766684) internal successors, (139944), 32412 states have internal predecessors, (139944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32413 states to 32413 states and 139944 transitions. [2023-12-02 18:05:31,009 INFO L78 Accepts]: Start accepts. Automaton has 32413 states and 139944 transitions. Word has length 11 [2023-12-02 18:05:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:31,009 INFO L495 AbstractCegarLoop]: Abstraction has 32413 states and 139944 transitions. [2023-12-02 18:05:31,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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) [2023-12-02 18:05:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 32413 states and 139944 transitions. [2023-12-02 18:05:31,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 18:05:31,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:31,024 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] [2023-12-02 18:05:31,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:31,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:31,225 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:31,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:31,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1506983262, now seen corresponding path program 1 times [2023-12-02 18:05:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387018522] [2023-12-02 18:05:31,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:31,226 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 [2023-12-02 18:05:31,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:31,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:31,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:31,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:05:31,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:31,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:31,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:31,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387018522] [2023-12-02 18:05:31,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387018522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:31,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:31,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:05:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929230066] [2023-12-02 18:05:31,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:31,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:05:31,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:31,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:05:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:05:31,364 INFO L87 Difference]: Start difference. First operand 32413 states and 139944 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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) [2023-12-02 18:05:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:31,701 INFO L93 Difference]: Finished difference Result 27939 states and 114426 transitions. [2023-12-02 18:05:31,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:05:31,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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 [2023-12-02 18:05:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:32,073 INFO L225 Difference]: With dead ends: 27939 [2023-12-02 18:05:32,073 INFO L226 Difference]: Without dead ends: 25538 [2023-12-02 18:05:32,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:05:32,074 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 83 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:32,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 56 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25538 states. [2023-12-02 18:05:32,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25538 to 25538. [2023-12-02 18:05:32,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25538 states, 25536 states have (on average 4.1341243734335835) internal successors, (105569), 25537 states have internal predecessors, (105569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25538 states to 25538 states and 105569 transitions. [2023-12-02 18:05:32,687 INFO L78 Accepts]: Start accepts. Automaton has 25538 states and 105569 transitions. Word has length 21 [2023-12-02 18:05:32,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:32,688 INFO L495 AbstractCegarLoop]: Abstraction has 25538 states and 105569 transitions. [2023-12-02 18:05:32,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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) [2023-12-02 18:05:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 25538 states and 105569 transitions. [2023-12-02 18:05:32,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 18:05:32,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:32,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:32,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:32,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:32,907 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:32,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1973773984, now seen corresponding path program 1 times [2023-12-02 18:05:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647002873] [2023-12-02 18:05:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:32,909 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 [2023-12-02 18:05:32,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:32,910 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:32,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:33,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:05:33,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:33,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:33,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:33,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647002873] [2023-12-02 18:05:33,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647002873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:33,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:33,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:05:33,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86608734] [2023-12-02 18:05:33,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:33,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:05:33,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:33,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:05:33,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:05:33,075 INFO L87 Difference]: Start difference. First operand 25538 states and 105569 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:33,302 INFO L93 Difference]: Finished difference Result 16314 states and 62801 transitions. [2023-12-02 18:05:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:05:33,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-02 18:05:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:33,341 INFO L225 Difference]: With dead ends: 16314 [2023-12-02 18:05:33,341 INFO L226 Difference]: Without dead ends: 14538 [2023-12-02 18:05:33,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:05:33,341 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 140 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:33,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 88 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:05:33,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14538 states. [2023-12-02 18:05:33,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14538 to 14538. [2023-12-02 18:05:33,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14538 states, 14536 states have (on average 3.857250963126032) internal successors, (56069), 14537 states have internal predecessors, (56069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14538 states to 14538 states and 56069 transitions. [2023-12-02 18:05:33,972 INFO L78 Accepts]: Start accepts. Automaton has 14538 states and 56069 transitions. Word has length 26 [2023-12-02 18:05:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:33,973 INFO L495 AbstractCegarLoop]: Abstraction has 14538 states and 56069 transitions. [2023-12-02 18:05:33,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 14538 states and 56069 transitions. [2023-12-02 18:05:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 18:05:34,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:34,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:34,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:34,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:34,200 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:34,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash -844284713, now seen corresponding path program 1 times [2023-12-02 18:05:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:34,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814164726] [2023-12-02 18:05:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:34,202 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 [2023-12-02 18:05:34,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:34,203 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:34,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:34,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 18:05:34,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:34,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:34,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:34,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814164726] [2023-12-02 18:05:34,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814164726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:34,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:34,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:05:34,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151593880] [2023-12-02 18:05:34,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:34,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:05:34,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:05:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:05:34,404 INFO L87 Difference]: Start difference. First operand 14538 states and 56069 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:34,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:34,688 INFO L93 Difference]: Finished difference Result 8714 states and 32501 transitions. [2023-12-02 18:05:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:05:34,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-02 18:05:34,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:34,712 INFO L225 Difference]: With dead ends: 8714 [2023-12-02 18:05:34,712 INFO L226 Difference]: Without dead ends: 7938 [2023-12-02 18:05:34,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:05:34,713 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 191 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:34,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 156 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:05:34,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7938 states. [2023-12-02 18:05:34,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7938 to 7938. [2023-12-02 18:05:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7938 states, 7936 states have (on average 3.7385332661290325) internal successors, (29669), 7937 states have internal predecessors, (29669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7938 states to 7938 states and 29669 transitions. [2023-12-02 18:05:34,924 INFO L78 Accepts]: Start accepts. Automaton has 7938 states and 29669 transitions. Word has length 31 [2023-12-02 18:05:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:34,925 INFO L495 AbstractCegarLoop]: Abstraction has 7938 states and 29669 transitions. [2023-12-02 18:05:34,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 7938 states and 29669 transitions. [2023-12-02 18:05:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 18:05:34,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:34,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:34,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:35,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:35,144 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:35,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash -51464291, now seen corresponding path program 1 times [2023-12-02 18:05:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:35,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747098314] [2023-12-02 18:05:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:35,146 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 [2023-12-02 18:05:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:35,147 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:35,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:35,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 18:05:35,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:35,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:35,367 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:35,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747098314] [2023-12-02 18:05:35,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747098314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:35,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:35,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:05:35,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713492665] [2023-12-02 18:05:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:35,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 18:05:35,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:35,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 18:05:35,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:05:35,370 INFO L87 Difference]: Start difference. First operand 7938 states and 29669 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:35,741 INFO L93 Difference]: Finished difference Result 6354 states and 24101 transitions. [2023-12-02 18:05:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:05:35,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2023-12-02 18:05:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:35,767 INFO L225 Difference]: With dead ends: 6354 [2023-12-02 18:05:35,767 INFO L226 Difference]: Without dead ends: 6178 [2023-12-02 18:05:35,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-02 18:05:35,768 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 216 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:35,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 230 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:05:35,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2023-12-02 18:05:35,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2023-12-02 18:05:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6178 states, 6176 states have (on average 3.806509067357513) internal successors, (23509), 6177 states have internal predecessors, (23509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 23509 transitions. [2023-12-02 18:05:35,933 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 23509 transitions. Word has length 36 [2023-12-02 18:05:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:35,933 INFO L495 AbstractCegarLoop]: Abstraction has 6178 states and 23509 transitions. [2023-12-02 18:05:35,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 23509 transitions. [2023-12-02 18:05:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:05:35,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:35,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:35,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:36,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:36,150 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:36,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash 30073335, now seen corresponding path program 1 times [2023-12-02 18:05:36,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:36,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448308636] [2023-12-02 18:05:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:36,151 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 [2023-12-02 18:05:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:36,152 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:36,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:36,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 18:05:36,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:37,334 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#t1354~0#1.base_59| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#t1353~0#1.base_63| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#t1356~0#1.base_43| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#t1355~0#1.base_51| (_ BitVec 32))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t1353~0#1.base_63| (_ bv1 1)))) (let ((.cse0 (store .cse1 |v_ULTIMATE.start_main_~#t1354~0#1.base_59| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |v_ULTIMATE.start_main_~#t1355~0#1.base_51|)) (= |c_#valid| (store (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t1353~0#1.base_63| (_ bv0 1)) |v_ULTIMATE.start_main_~#t1354~0#1.base_59| (_ bv0 1)) |v_ULTIMATE.start_main_~#t1355~0#1.base_51| (_ bv0 1)) |v_ULTIMATE.start_main_~#t1356~0#1.base_43| (_ bv0 1))) (= (select .cse1 |v_ULTIMATE.start_main_~#t1354~0#1.base_59|) (_ bv0 1)) (= (_ bv0 1) (select (store .cse0 |v_ULTIMATE.start_main_~#t1355~0#1.base_51| (_ bv1 1)) |v_ULTIMATE.start_main_~#t1356~0#1.base_43|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t1353~0#1.base_63|)))))) is different from true [2023-12-02 18:05:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:37,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:37,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:37,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448308636] [2023-12-02 18:05:37,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448308636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:37,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:37,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:05:37,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181315506] [2023-12-02 18:05:37,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:37,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 18:05:37,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 18:05:37,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2023-12-02 18:05:37,339 INFO L87 Difference]: Start difference. First operand 6178 states and 23509 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:37,746 INFO L93 Difference]: Finished difference Result 6192 states and 23532 transitions. [2023-12-02 18:05:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:05:37,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:05:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:37,768 INFO L225 Difference]: With dead ends: 6192 [2023-12-02 18:05:37,768 INFO L226 Difference]: Without dead ends: 6190 [2023-12-02 18:05:37,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2023-12-02 18:05:37,769 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 111 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:37,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 161 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 111 Unchecked, 0.4s Time] [2023-12-02 18:05:37,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2023-12-02 18:05:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 6190. [2023-12-02 18:05:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6188 states have (on average 3.801874595992243) internal successors, (23526), 6189 states have internal predecessors, (23526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:37,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 23526 transitions. [2023-12-02 18:05:37,952 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 23526 transitions. Word has length 41 [2023-12-02 18:05:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:37,952 INFO L495 AbstractCegarLoop]: Abstraction has 6190 states and 23526 transitions. [2023-12-02 18:05:37,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 23526 transitions. [2023-12-02 18:05:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:05:37,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:37,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:37,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 18:05:38,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:38,171 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:38,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash 30074708, now seen corresponding path program 1 times [2023-12-02 18:05:38,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:38,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573567555] [2023-12-02 18:05:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:38,172 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 [2023-12-02 18:05:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:38,173 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:38,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:38,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 18:05:38,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:38,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:38,359 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:38,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573567555] [2023-12-02 18:05:38,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573567555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:38,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:38,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:05:38,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670121424] [2023-12-02 18:05:38,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:38,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:05:38,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:38,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:05:38,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:05:38,361 INFO L87 Difference]: Start difference. First operand 6190 states and 23526 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:38,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:38,588 INFO L93 Difference]: Finished difference Result 8770 states and 32889 transitions. [2023-12-02 18:05:38,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:05:38,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:05:38,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:38,618 INFO L225 Difference]: With dead ends: 8770 [2023-12-02 18:05:38,618 INFO L226 Difference]: Without dead ends: 8763 [2023-12-02 18:05:38,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:05:38,619 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 30 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:38,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 130 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:05:38,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8763 states. [2023-12-02 18:05:38,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8763 to 8703. [2023-12-02 18:05:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8703 states, 8701 states have (on average 3.7592230778071487) internal successors, (32709), 8702 states have internal predecessors, (32709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8703 states to 8703 states and 32709 transitions. [2023-12-02 18:05:38,869 INFO L78 Accepts]: Start accepts. Automaton has 8703 states and 32709 transitions. Word has length 41 [2023-12-02 18:05:38,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:38,869 INFO L495 AbstractCegarLoop]: Abstraction has 8703 states and 32709 transitions. [2023-12-02 18:05:38,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:38,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8703 states and 32709 transitions. [2023-12-02 18:05:38,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:05:38,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:38,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:38,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:39,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:39,086 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:39,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash -141580874, now seen corresponding path program 2 times [2023-12-02 18:05:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:39,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909076323] [2023-12-02 18:05:39,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 18:05:39,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:39,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:39,088 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:39,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:39,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 18:05:39,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 18:05:39,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 18:05:39,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:05:39,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:39,842 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:39,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909076323] [2023-12-02 18:05:39,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909076323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:39,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:39,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 18:05:39,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538049064] [2023-12-02 18:05:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:39,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 18:05:39,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 18:05:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-02 18:05:39,844 INFO L87 Difference]: Start difference. First operand 8703 states and 32709 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:40,353 INFO L93 Difference]: Finished difference Result 14256 states and 52069 transitions. [2023-12-02 18:05:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 18:05:40,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 18:05:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:40,403 INFO L225 Difference]: With dead ends: 14256 [2023-12-02 18:05:40,403 INFO L226 Difference]: Without dead ends: 14245 [2023-12-02 18:05:40,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-12-02 18:05:40,404 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 179 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:40,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 317 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:05:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14245 states. [2023-12-02 18:05:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14245 to 9039. [2023-12-02 18:05:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9039 states, 9037 states have (on average 3.7597654088746264) internal successors, (33977), 9038 states have internal predecessors, (33977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9039 states to 9039 states and 33977 transitions. [2023-12-02 18:05:40,666 INFO L78 Accepts]: Start accepts. Automaton has 9039 states and 33977 transitions. Word has length 41 [2023-12-02 18:05:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:40,666 INFO L495 AbstractCegarLoop]: Abstraction has 9039 states and 33977 transitions. [2023-12-02 18:05:40,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:05:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9039 states and 33977 transitions. [2023-12-02 18:05:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:05:40,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:40,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:40,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:40,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:40,886 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-12-02 18:05:40,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1452993782, now seen corresponding path program 3 times [2023-12-02 18:05:40,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:40,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845542358] [2023-12-02 18:05:40,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 18:05:40,888 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 [2023-12-02 18:05:40,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:40,889 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:05:40,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:05:41,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 18:05:41,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-12-02 18:05:41,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:05:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:05:41,252 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 18:05:41,253 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:05:41,254 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-12-02 18:05:41,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-12-02 18:05:41,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-12-02 18:05:41,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-12-02 18:05:41,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-12-02 18:05:41,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-12-02 18:05:41,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-12-02 18:05:41,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-12-02 18:05:41,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-12-02 18:05:41,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-12-02 18:05:41,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-12-02 18:05:41,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-12-02 18:05:41,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-12-02 18:05:41,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-12-02 18:05:41,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-12-02 18:05:41,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-12-02 18:05:41,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:05:41,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:41,461 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:41,464 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 18:05:41,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:05:41,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 18:05:41,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-12-02 18:05:41,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-12-02 18:05:41,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-12-02 18:05:41,553 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 18:05:41,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 18:05:41,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:05:41 BasicIcfg [2023-12-02 18:05:41,569 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:05:41,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:05:41,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:05:41,570 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:05:41,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:07" (3/4) ... [2023-12-02 18:05:41,572 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:05:41,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:05:41,574 INFO L158 Benchmark]: Toolchain (without parser) took 35835.01ms. Allocated memory was 102.8MB in the beginning and 13.2GB in the end (delta: 13.1GB). Free memory was 78.1MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2023-12-02 18:05:41,574 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:41,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.23ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 78.3MB in the end (delta: -509.6kB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:41,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.18ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 75.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:41,575 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:41,575 INFO L158 Benchmark]: RCFGBuilder took 827.35ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 71.7MB in the end (delta: 1.4MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-12-02 18:05:41,576 INFO L158 Benchmark]: TraceAbstraction took 34311.69ms. Allocated memory was 102.8MB in the beginning and 13.2GB in the end (delta: 13.1GB). Free memory was 70.4MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2023-12-02 18:05:41,576 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 13.2GB. Free memory is still 10.2GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:41,578 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.23ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 78.3MB in the end (delta: -509.6kB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.18ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 75.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 827.35ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 71.7MB in the end (delta: 1.4MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * TraceAbstraction took 34311.69ms. Allocated memory was 102.8MB in the beginning and 13.2GB in the end (delta: 13.1GB). Free memory was 70.4MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 13.2GB. Free memory is still 10.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int a = 0; [L719] 0 _Bool a$flush_delayed; [L720] 0 int a$mem_tmp; [L721] 0 _Bool a$r_buff0_thd0; [L722] 0 _Bool a$r_buff0_thd1; [L723] 0 _Bool a$r_buff0_thd2; [L724] 0 _Bool a$r_buff0_thd3; [L725] 0 _Bool a$r_buff0_thd4; [L726] 0 _Bool a$r_buff1_thd0; [L727] 0 _Bool a$r_buff1_thd1; [L728] 0 _Bool a$r_buff1_thd2; [L729] 0 _Bool a$r_buff1_thd3; [L730] 0 _Bool a$r_buff1_thd4; [L731] 0 _Bool a$read_delayed; [L732] 0 int *a$read_delayed_var; [L733] 0 int a$w_buff0; [L734] 0 _Bool a$w_buff0_used; [L735] 0 int a$w_buff1; [L736] 0 _Bool a$w_buff1_used; [L737] 0 _Bool main$tmp_guard0; [L738] 0 _Bool main$tmp_guard1; [L740] 0 int x = 0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L861] 0 pthread_t t1353; [L862] FCALL, FORK 0 pthread_create(&t1353, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1353={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L863] 0 pthread_t t1354; [L864] FCALL, FORK 0 pthread_create(&t1354, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1353={3:0}, t1354={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L865] 0 pthread_t t1355; [L750] 1 a$w_buff1 = a$w_buff0 [L751] 1 a$w_buff0 = 1 [L752] 1 a$w_buff1_used = a$w_buff0_used [L753] 1 a$w_buff0_used = (_Bool)1 [L754] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L754] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L755] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L756] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L757] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L758] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L759] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L786] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L787] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L788] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L789] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L790] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L866] FCALL, FORK 0 pthread_create(&t1355, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1353={3:0}, t1354={6:0}, t1355={-2147483646:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L867] 0 pthread_t t1356; [L800] 3 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L806] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L807] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L808] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L809] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L810] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L868] FCALL, FORK 0 pthread_create(&t1356, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1353={3:0}, t1354={6:0}, t1355={-2147483646:0}, t1356={7:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L820] 4 z = 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 a$flush_delayed = weak$$choice2 [L826] 4 a$mem_tmp = a [L827] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L828] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L829] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L830] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L831] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L833] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = a [L835] 4 a = a$flush_delayed ? a$mem_tmp : a [L836] 4 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L839] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L840] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L841] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L842] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L843] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L846] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=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$$choice2=0, x=2, y=1, z=1] [L870] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={3:0}, t1354={6:0}, t1355={-2147483646:0}, t1356={7:0}, weak$$choice2=0, x=2, y=1, z=1] [L872] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L872] RET 0 assume_abort_if_not(main$tmp_guard0) [L874] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L875] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L876] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L877] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L878] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={3:0}, t1354={6:0}, t1355={-2147483646:0}, t1356={7:0}, weak$$choice2=0, x=2, y=1, z=1] [L881] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={3:0}, t1354={6:0}, t1355={-2147483646:0}, t1356={7:0}, weak$$choice2=0, x=2, y=1, z=1] [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L17] 0 __assert_fail ("0", "mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 868]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 866]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 97 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 34.1s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.2s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1265 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1265 mSDsluCounter, 1534 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 111 IncrementalHoareTripleChecker+Unchecked, 994 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1903 IncrementalHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 540 mSDtfsCounter, 1903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41730occurred in iteration=0, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 5266 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 278 ConstructedInterpolants, 1 QuantifiedInterpolants, 2690 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2086 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 [2023-12-02 18:05:41,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34aa861b-9113-404c-82e1-b9274697a047/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample