./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5 --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 ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:57:38,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:57:38,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-21 18:57:38,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:57:38,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:57:38,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:57:38,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:57:38,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:57:38,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:57:38,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:57:38,738 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:57:38,738 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:57:38,739 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:57:38,740 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:57:38,740 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:57:38,741 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:57:38,741 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:57:38,742 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:57:38,743 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:57:38,743 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:57:38,744 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:57:38,745 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:57:38,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:57:38,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:57:38,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:57:38,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:57:38,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:57:38,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:57:38,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:57:38,749 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 18:57:38,750 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 18:57:38,750 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 18:57:38,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:57:38,752 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:57:38,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:57:38,753 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:57:38,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:57:38,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:57:38,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:57:38,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:57:38,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:38,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:57:38,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:57:38,757 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:57:38,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:57:38,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:57:38,759 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:57:38,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:57:38,760 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_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 [2023-11-21 18:57:39,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:57:39,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:57:39,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:57:39,093 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:57:39,094 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:57:39,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-21 18:57:42,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:57:42,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:57:42,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-21 18:57:42,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data/3be8cb308/254b0bf250314cb09ad2422b5f3fa5ef/FLAGa7345c4fb [2023-11-21 18:57:42,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data/3be8cb308/254b0bf250314cb09ad2422b5f3fa5ef [2023-11-21 18:57:42,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:57:42,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:57:42,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:42,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:57:42,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:57:42,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:42" (1/1) ... [2023-11-21 18:57:42,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49009cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:42, skipping insertion in model container [2023-11-21 18:57:42,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:42" (1/1) ... [2023-11-21 18:57:42,717 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:57:43,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:43,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:57:43,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:43,215 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:57:43,215 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:57:43,224 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:57:43,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43 WrapperNode [2023-11-21 18:57:43,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:43,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:43,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:57:43,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:57:43,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,290 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 141 [2023-11-21 18:57:43,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:43,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:57:43,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:57:43,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:57:43,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:57:43,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:57:43,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:57:43,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:57:43,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (1/1) ... [2023-11-21 18:57:43,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:57:43,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:57:43,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:57:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:57:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 18:57:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:57:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:57:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:57:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 18:57:43,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 18:57:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 18:57:43,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 18:57:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:57:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 18:57:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:57:43,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:57:43,450 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 18:57:43,641 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:57:43,643 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:57:43,993 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:57:44,303 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:57:44,303 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:57:44,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:44 BoogieIcfgContainer [2023-11-21 18:57:44,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:57:44,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:57:44,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:57:44,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:57:44,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:57:42" (1/3) ... [2023-11-21 18:57:44,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a0f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:44, skipping insertion in model container [2023-11-21 18:57:44,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:43" (2/3) ... [2023-11-21 18:57:44,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a0f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:44, skipping insertion in model container [2023-11-21 18:57:44,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:44" (3/3) ... [2023-11-21 18:57:44,328 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-21 18:57:44,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:57:44,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-21 18:57:44,350 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 18:57:44,411 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 18:57:44,453 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 43 transitions, 94 flow [2023-11-21 18:57:44,568 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1041 states, 1032 states have (on average 2.8052325581395348) internal successors, (2895), 1040 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:44,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:57:44,595 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;@395bc4d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:57:44,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-21 18:57:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 1041 states, 1032 states have (on average 2.8052325581395348) internal successors, (2895), 1040 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:44,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:57:44,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:44,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 18:57:44,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:44,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash 11622, now seen corresponding path program 1 times [2023-11-21 18:57:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140351743] [2023-11-21 18:57:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:44,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:44,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:44,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140351743] [2023-11-21 18:57:44,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140351743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:44,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:44,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:57:44,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255791963] [2023-11-21 18:57:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:44,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:45,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:45,052 INFO L87 Difference]: Start difference. First operand has 1041 states, 1032 states have (on average 2.8052325581395348) internal successors, (2895), 1040 states have internal predecessors, (2895), 0 states have call successors, (0), 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) [2023-11-21 18:57:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:45,225 INFO L93 Difference]: Finished difference Result 970 states and 2561 transitions. [2023-11-21 18:57:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:45,228 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 [2023-11-21 18:57:45,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:45,259 INFO L225 Difference]: With dead ends: 970 [2023-11-21 18:57:45,259 INFO L226 Difference]: Without dead ends: 970 [2023-11-21 18:57:45,261 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 [2023-11-21 18:57:45,264 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:45,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 24 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-11-21 18:57:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2023-11-21 18:57:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 962 states have (on average 2.6621621621621623) internal successors, (2561), 969 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:45,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 2561 transitions. [2023-11-21 18:57:45,389 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 2561 transitions. Word has length 2 [2023-11-21 18:57:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:45,390 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 2561 transitions. [2023-11-21 18:57:45,390 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) [2023-11-21 18:57:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 2561 transitions. [2023-11-21 18:57:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:57:45,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:45,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 18:57:45,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 18:57:45,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:45,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 11623, now seen corresponding path program 1 times [2023-11-21 18:57:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:45,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455050441] [2023-11-21 18:57:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:45,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455050441] [2023-11-21 18:57:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455050441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:45,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:57:45,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495968788] [2023-11-21 18:57:45,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:45,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:45,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:45,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:45,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:45,551 INFO L87 Difference]: Start difference. First operand 970 states and 2561 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) [2023-11-21 18:57:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:45,641 INFO L93 Difference]: Finished difference Result 969 states and 2560 transitions. [2023-11-21 18:57:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:45,642 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 [2023-11-21 18:57:45,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:45,651 INFO L225 Difference]: With dead ends: 969 [2023-11-21 18:57:45,651 INFO L226 Difference]: Without dead ends: 969 [2023-11-21 18:57:45,657 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 [2023-11-21 18:57:45,659 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 31 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:45,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 25 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-11-21 18:57:45,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2023-11-21 18:57:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 962 states have (on average 2.6611226611226613) internal successors, (2560), 968 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 2560 transitions. [2023-11-21 18:57:45,719 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 2560 transitions. Word has length 2 [2023-11-21 18:57:45,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:45,720 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 2560 transitions. [2023-11-21 18:57:45,720 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) [2023-11-21 18:57:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 2560 transitions. [2023-11-21 18:57:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:57:45,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:45,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 18:57:45,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 18:57:45,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:45,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:45,722 INFO L85 PathProgramCache]: Analyzing trace with hash 346552083, now seen corresponding path program 1 times [2023-11-21 18:57:45,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:45,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604445574] [2023-11-21 18:57:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:45,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:45,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604445574] [2023-11-21 18:57:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604445574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:45,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:45,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 18:57:45,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794084019] [2023-11-21 18:57:45,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:45,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:45,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:45,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:45,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:45,784 INFO L87 Difference]: Start difference. First operand 969 states and 2560 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) [2023-11-21 18:57:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:45,849 INFO L93 Difference]: Finished difference Result 962 states and 2547 transitions. [2023-11-21 18:57:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:45,850 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 [2023-11-21 18:57:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:45,858 INFO L225 Difference]: With dead ends: 962 [2023-11-21 18:57:45,858 INFO L226 Difference]: Without dead ends: 962 [2023-11-21 18:57:45,858 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 [2023-11-21 18:57:45,860 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:45,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-21 18:57:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2023-11-21 18:57:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 956 states have (on average 2.664225941422594) internal successors, (2547), 961 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 2547 transitions. [2023-11-21 18:57:45,899 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 2547 transitions. Word has length 5 [2023-11-21 18:57:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:45,900 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 2547 transitions. [2023-11-21 18:57:45,900 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) [2023-11-21 18:57:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 2547 transitions. [2023-11-21 18:57:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:57:45,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:45,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 18:57:45,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 18:57:45,901 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:45,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash 346552084, now seen corresponding path program 1 times [2023-11-21 18:57:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:45,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495511487] [2023-11-21 18:57:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:45,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:45,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:45,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495511487] [2023-11-21 18:57:45,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495511487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:45,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:45,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 18:57:45,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156469880] [2023-11-21 18:57:45,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:45,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:45,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:45,995 INFO L87 Difference]: Start difference. First operand 962 states and 2547 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) [2023-11-21 18:57:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:46,082 INFO L93 Difference]: Finished difference Result 955 states and 2534 transitions. [2023-11-21 18:57:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:46,083 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 [2023-11-21 18:57:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:46,091 INFO L225 Difference]: With dead ends: 955 [2023-11-21 18:57:46,091 INFO L226 Difference]: Without dead ends: 955 [2023-11-21 18:57:46,091 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 [2023-11-21 18:57:46,092 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:46,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-21 18:57:46,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2023-11-21 18:57:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 950 states have (on average 2.6673684210526316) internal successors, (2534), 954 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 2534 transitions. [2023-11-21 18:57:46,129 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 2534 transitions. Word has length 5 [2023-11-21 18:57:46,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:46,130 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 2534 transitions. [2023-11-21 18:57:46,130 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) [2023-11-21 18:57:46,130 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 2534 transitions. [2023-11-21 18:57:46,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:57:46,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:46,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:57:46,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 18:57:46,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:46,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash -967954512, now seen corresponding path program 1 times [2023-11-21 18:57:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:46,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858522331] [2023-11-21 18:57:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:46,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:46,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858522331] [2023-11-21 18:57:46,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858522331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:46,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:46,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:57:46,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890238338] [2023-11-21 18:57:46,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:46,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:46,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:46,245 INFO L87 Difference]: Start difference. First operand 955 states and 2534 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-21 18:57:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:46,321 INFO L93 Difference]: Finished difference Result 857 states and 2261 transitions. [2023-11-21 18:57:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:46,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2023-11-21 18:57:46,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:46,329 INFO L225 Difference]: With dead ends: 857 [2023-11-21 18:57:46,329 INFO L226 Difference]: Without dead ends: 843 [2023-11-21 18:57:46,329 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 [2023-11-21 18:57:46,330 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:46,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-21 18:57:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2023-11-21 18:57:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 841 states have (on average 2.6492271105826397) internal successors, (2228), 842 states have internal predecessors, (2228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 2228 transitions. [2023-11-21 18:57:46,363 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 2228 transitions. Word has length 8 [2023-11-21 18:57:46,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:46,363 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 2228 transitions. [2023-11-21 18:57:46,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-21 18:57:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 2228 transitions. [2023-11-21 18:57:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:57:46,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:46,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:57:46,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 18:57:46,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:46,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:46,368 INFO L85 PathProgramCache]: Analyzing trace with hash -416382856, now seen corresponding path program 1 times [2023-11-21 18:57:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:46,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335545735] [2023-11-21 18:57:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:46,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:46,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335545735] [2023-11-21 18:57:46,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335545735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:46,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:46,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 18:57:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002135823] [2023-11-21 18:57:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:46,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 18:57:46,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:46,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 18:57:46,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 18:57:46,769 INFO L87 Difference]: Start difference. First operand 843 states and 2228 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:46,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:46,920 INFO L93 Difference]: Finished difference Result 780 states and 2055 transitions. [2023-11-21 18:57:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:57:46,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-11-21 18:57:46,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:46,926 INFO L225 Difference]: With dead ends: 780 [2023-11-21 18:57:46,926 INFO L226 Difference]: Without dead ends: 654 [2023-11-21 18:57:46,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 18:57:46,930 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 45 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:46,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 96 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:46,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-11-21 18:57:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2023-11-21 18:57:46,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 2.6171516079632466) internal successors, (1709), 653 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1709 transitions. [2023-11-21 18:57:46,961 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1709 transitions. Word has length 15 [2023-11-21 18:57:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:46,962 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1709 transitions. [2023-11-21 18:57:46,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1709 transitions. [2023-11-21 18:57:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:57:46,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:46,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:57:46,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 18:57:46,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:46,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:46,970 INFO L85 PathProgramCache]: Analyzing trace with hash -416381368, now seen corresponding path program 1 times [2023-11-21 18:57:46,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:46,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260514302] [2023-11-21 18:57:46,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:46,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:47,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:47,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260514302] [2023-11-21 18:57:47,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260514302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:47,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:47,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:57:47,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734824776] [2023-11-21 18:57:47,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:47,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 18:57:47,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:47,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 18:57:47,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 18:57:47,235 INFO L87 Difference]: Start difference. First operand 654 states and 1709 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:47,313 INFO L93 Difference]: Finished difference Result 437 states and 1014 transitions. [2023-11-21 18:57:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:57:47,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-11-21 18:57:47,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:47,317 INFO L225 Difference]: With dead ends: 437 [2023-11-21 18:57:47,317 INFO L226 Difference]: Without dead ends: 374 [2023-11-21 18:57:47,318 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 [2023-11-21 18:57:47,319 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 47 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:47,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 32 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-21 18:57:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-21 18:57:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 2.329758713136729) internal successors, (869), 373 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 869 transitions. [2023-11-21 18:57:47,334 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 869 transitions. Word has length 15 [2023-11-21 18:57:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 869 transitions. [2023-11-21 18:57:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 869 transitions. [2023-11-21 18:57:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:57:47,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:47,337 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] [2023-11-21 18:57:47,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 18:57:47,338 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:47,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1796761247, now seen corresponding path program 1 times [2023-11-21 18:57:47,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:47,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811249874] [2023-11-21 18:57:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:47,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:47,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:47,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811249874] [2023-11-21 18:57:47,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811249874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:47,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:47,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 18:57:47,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635651548] [2023-11-21 18:57:47,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:47,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:57:47,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:47,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:57:47,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:57:47,604 INFO L87 Difference]: Start difference. First operand 374 states and 869 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:47,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:47,692 INFO L93 Difference]: Finished difference Result 210 states and 453 transitions. [2023-11-21 18:57:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:57:47,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-21 18:57:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:47,694 INFO L225 Difference]: With dead ends: 210 [2023-11-21 18:57:47,694 INFO L226 Difference]: Without dead ends: 182 [2023-11-21 18:57:47,695 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 [2023-11-21 18:57:47,695 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 68 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:47,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 23 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:47,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-21 18:57:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-21 18:57:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.149171270718232) internal successors, (389), 181 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 389 transitions. [2023-11-21 18:57:47,705 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 389 transitions. Word has length 20 [2023-11-21 18:57:47,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:47,706 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 389 transitions. [2023-11-21 18:57:47,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 389 transitions. [2023-11-21 18:57:47,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:57:47,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:47,707 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] [2023-11-21 18:57:47,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 18:57:47,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:47,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash -730522663, now seen corresponding path program 1 times [2023-11-21 18:57:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984489946] [2023-11-21 18:57:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:47,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:47,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984489946] [2023-11-21 18:57:47,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984489946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:47,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:47,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 18:57:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119313559] [2023-11-21 18:57:47,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:47,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:57:47,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:47,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:57:47,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:57:47,985 INFO L87 Difference]: Start difference. First operand 182 states and 389 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:48,103 INFO L93 Difference]: Finished difference Result 262 states and 557 transitions. [2023-11-21 18:57:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:57:48,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-21 18:57:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:48,105 INFO L225 Difference]: With dead ends: 262 [2023-11-21 18:57:48,105 INFO L226 Difference]: Without dead ends: 137 [2023-11-21 18:57:48,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 18:57:48,107 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:48,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-21 18:57:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-11-21 18:57:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 2.088235294117647) internal successors, (284), 136 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 284 transitions. [2023-11-21 18:57:48,113 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 284 transitions. Word has length 27 [2023-11-21 18:57:48,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:48,113 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 284 transitions. [2023-11-21 18:57:48,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 284 transitions. [2023-11-21 18:57:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:57:48,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:48,115 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] [2023-11-21 18:57:48,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 18:57:48,115 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:48,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1232109607, now seen corresponding path program 2 times [2023-11-21 18:57:48,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:48,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004445281] [2023-11-21 18:57:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:48,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:48,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:57:48,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004445281] [2023-11-21 18:57:48,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004445281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:48,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:48,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 18:57:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943865612] [2023-11-21 18:57:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 18:57:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:57:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 18:57:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 18:57:48,834 INFO L87 Difference]: Start difference. First operand 137 states and 284 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:49,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:49,154 INFO L93 Difference]: Finished difference Result 207 states and 429 transitions. [2023-11-21 18:57:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 18:57:49,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-21 18:57:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:49,156 INFO L225 Difference]: With dead ends: 207 [2023-11-21 18:57:49,156 INFO L226 Difference]: Without dead ends: 117 [2023-11-21 18:57:49,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-21 18:57:49,157 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 50 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:49,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 70 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 18:57:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-21 18:57:49,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-21 18:57:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 2.0172413793103448) internal successors, (234), 116 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 234 transitions. [2023-11-21 18:57:49,163 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 234 transitions. Word has length 27 [2023-11-21 18:57:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:49,163 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 234 transitions. [2023-11-21 18:57:49,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 234 transitions. [2023-11-21 18:57:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:57:49,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:49,164 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] [2023-11-21 18:57:49,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 18:57:49,165 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:49,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1629737699, now seen corresponding path program 3 times [2023-11-21 18:57:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:49,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969964620] [2023-11-21 18:57:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:49,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:57:49,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:57:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:57:49,296 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 18:57:49,296 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 18:57:49,297 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-11-21 18:57:49,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2023-11-21 18:57:49,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-11-21 18:57:49,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-11-21 18:57:49,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-11-21 18:57:49,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2023-11-21 18:57:49,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-11-21 18:57:49,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-11-21 18:57:49,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-11-21 18:57:49,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-11-21 18:57:49,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 18:57:49,304 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:57:49,309 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 18:57:49,309 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 18:57:49,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated [2023-11-21 18:57:49,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 18:57:49,367 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 18:57:49,368 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 18:57:49,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 06:57:49 BasicIcfg [2023-11-21 18:57:49,390 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 18:57:49,390 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:57:49,390 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:57:49,391 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:57:49,391 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:44" (3/4) ... [2023-11-21 18:57:49,393 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:57:49,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:57:49,394 INFO L158 Benchmark]: Toolchain (without parser) took 6768.97ms. Allocated memory was 130.0MB in the beginning and 213.9MB in the end (delta: 83.9MB). Free memory was 86.3MB in the beginning and 140.3MB in the end (delta: -54.0MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-11-21 18:57:49,395 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:57:49,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.85ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 63.4MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 18:57:49,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.97ms. Allocated memory is still 130.0MB. Free memory was 63.4MB in the beginning and 60.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:57:49,400 INFO L158 Benchmark]: Boogie Preprocessor took 52.62ms. Allocated memory is still 130.0MB. Free memory was 60.5MB in the beginning and 58.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:57:49,400 INFO L158 Benchmark]: RCFGBuilder took 967.58ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 58.8MB in the beginning and 113.7MB in the end (delta: -54.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-21 18:57:49,401 INFO L158 Benchmark]: TraceAbstraction took 5073.14ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 113.7MB in the beginning and 140.3MB in the end (delta: -26.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-11-21 18:57:49,402 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 213.9MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:57:49,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.85ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 63.4MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.97ms. Allocated memory is still 130.0MB. Free memory was 63.4MB in the beginning and 60.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.62ms. Allocated memory is still 130.0MB. Free memory was 60.5MB in the beginning and 58.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 967.58ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 58.8MB in the beginning and 113.7MB in the end (delta: -54.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5073.14ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 113.7MB in the beginning and 140.3MB in the end (delta: -26.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 213.9MB. Free memory is still 140.3MB. 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~pre3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L800] 0 pthread_t t1587; [L801] FCALL, FORK 0 pthread_create(&t1587, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1587={5:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L802] 0 pthread_t t1588; [L803] FCALL, FORK 0 pthread_create(&t1588, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1587={5:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L762] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L762] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L769] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L775] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L738] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L805] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={5:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L807] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L807] RET 0 assume_abort_if_not(main$tmp_guard0) [L809] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L810] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L811] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L812] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L813] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={5:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L816] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L817] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L818] 0 x$flush_delayed = weak$$choice2 [L819] 0 x$mem_tmp = x [L820] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L821] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L822] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L823] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L824] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L825] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L826] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) [L828] 0 x = x$flush_delayed ? x$mem_tmp : x [L829] 0 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={5:0}, t1588={3:0}, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L17] 0 __assert_fail ("0", "rfi000_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - 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: 798]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 801]: 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: 803]: 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 5 procedures, 61 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 357 mSDsluCounter, 414 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 249 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 560 IncrementalHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 165 mSDtfsCounter, 560 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1041occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 [2023-11-21 18:57:49,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5 --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 ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:57:52,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:57:52,170 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-21 18:57:52,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:57:52,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:57:52,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:57:52,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:57:52,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:57:52,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:57:52,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:57:52,224 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:57:52,225 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:57:52,225 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:57:52,227 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:57:52,227 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:57:52,227 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:57:52,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:57:52,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:57:52,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:57:52,230 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:57:52,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:57:52,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:57:52,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:57:52,232 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 18:57:52,232 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 18:57:52,233 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 18:57:52,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:57:52,233 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:57:52,234 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:57:52,234 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:57:52,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:57:52,235 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:57:52,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:57:52,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:57:52,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 18:57:52,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:57:52,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:57:52,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:52,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:57:52,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:57:52,238 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:57:52,238 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:57:52,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:57:52,239 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:57:52,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:57:52,240 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_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed015c7abb1e633204d95cacfb8444fc40c913627602030095cae55094cd4434 [2023-11-21 18:57:52,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:57:52,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:57:52,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:57:52,696 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:57:52,697 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:57:52,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-21 18:57:55,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:57:56,350 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:57:56,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/sv-benchmarks/c/pthread-wmm/rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-21 18:57:56,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data/ab5c4ef62/9c51702f8c0c4d52b858d529704fa4fe/FLAGdf866bdf5 [2023-11-21 18:57:56,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/data/ab5c4ef62/9c51702f8c0c4d52b858d529704fa4fe [2023-11-21 18:57:56,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:57:56,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:57:56,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:56,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:57:56,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:57:56,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:56" (1/1) ... [2023-11-21 18:57:56,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c2b44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:56, skipping insertion in model container [2023-11-21 18:57:56,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:56" (1/1) ... [2023-11-21 18:57:56,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:57:56,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:56,987 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:57:57,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:57,079 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:57:57,079 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:57:57,087 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:57:57,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57 WrapperNode [2023-11-21 18:57:57,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:57,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:57,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:57:57,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:57:57,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,146 INFO L138 Inliner]: procedures = 178, calls = 46, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 142 [2023-11-21 18:57:57,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:57,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:57:57,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:57:57,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:57:57,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:57:57,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:57:57,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:57:57,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:57:57,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (1/1) ... [2023-11-21 18:57:57,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:57,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:57:57,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:57:57,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:57:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 18:57:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:57:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:57:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:57:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 18:57:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:57:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 18:57:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 18:57:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 18:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 18:57:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 18:57:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:57:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:57:57,296 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 18:57:57,495 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:57:57,497 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:57:57,857 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:57:58,136 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:57:58,136 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:57:58,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:58 BoogieIcfgContainer [2023-11-21 18:57:58,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:57:58,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:57:58,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:57:58,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:57:58,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:57:56" (1/3) ... [2023-11-21 18:57:58,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666d2e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:58, skipping insertion in model container [2023-11-21 18:57:58,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:57" (2/3) ... [2023-11-21 18:57:58,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666d2e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:58, skipping insertion in model container [2023-11-21 18:57:58,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:58" (3/3) ... [2023-11-21 18:57:58,152 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_power.opt_pso.opt_rmo.opt.i [2023-11-21 18:57:58,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:57:58,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-21 18:57:58,172 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 18:57:58,236 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 18:57:58,277 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 43 transitions, 94 flow [2023-11-21 18:57:58,386 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1041 states, 1032 states have (on average 2.8052325581395348) internal successors, (2895), 1040 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:58,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:57:58,416 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;@700ea44d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:57:58,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-21 18:57:58,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 1041 states, 1032 states have (on average 2.8052325581395348) internal successors, (2895), 1040 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:57:58,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:58,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 18:57:58,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:58,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:58,438 INFO L85 PathProgramCache]: Analyzing trace with hash 11686, now seen corresponding path program 1 times [2023-11-21 18:57:58,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:57:58,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30965714] [2023-11-21 18:57:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:58,462 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 [2023-11-21 18:57:58,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:57:58,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:57:58,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:57:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:58,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:57:58,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:57:58,640 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 [2023-11-21 18:57:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:58,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:57:58,653 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:57:58,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30965714] [2023-11-21 18:57:58,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30965714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:58,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:58,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:57:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717228455] [2023-11-21 18:57:58,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:58,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:58,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:57:58,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:58,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:58,699 INFO L87 Difference]: Start difference. First operand has 1041 states, 1032 states have (on average 2.8052325581395348) internal successors, (2895), 1040 states have internal predecessors, (2895), 0 states have call successors, (0), 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) [2023-11-21 18:57:58,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:58,857 INFO L93 Difference]: Finished difference Result 970 states and 2561 transitions. [2023-11-21 18:57:58,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:58,860 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 [2023-11-21 18:57:58,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:58,889 INFO L225 Difference]: With dead ends: 970 [2023-11-21 18:57:58,890 INFO L226 Difference]: Without dead ends: 970 [2023-11-21 18:57:58,891 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 [2023-11-21 18:57:58,894 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:58,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 24 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:58,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-11-21 18:57:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2023-11-21 18:57:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 962 states have (on average 2.6621621621621623) internal successors, (2561), 969 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 2561 transitions. [2023-11-21 18:57:59,007 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 2561 transitions. Word has length 2 [2023-11-21 18:57:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:59,008 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 2561 transitions. [2023-11-21 18:57:59,008 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) [2023-11-21 18:57:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 2561 transitions. [2023-11-21 18:57:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:57:59,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:59,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 18:57:59,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:57:59,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:57:59,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:59,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:59,216 INFO L85 PathProgramCache]: Analyzing trace with hash 11687, now seen corresponding path program 1 times [2023-11-21 18:57:59,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:57:59,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792540462] [2023-11-21 18:57:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:59,218 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 [2023-11-21 18:57:59,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:57:59,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:57:59,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:57:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:59,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:57:59,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:57:59,343 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 [2023-11-21 18:57:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:59,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:57:59,355 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:57:59,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792540462] [2023-11-21 18:57:59,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792540462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:59,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:59,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:57:59,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144388141] [2023-11-21 18:57:59,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:59,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:59,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:57:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:59,364 INFO L87 Difference]: Start difference. First operand 970 states and 2561 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) [2023-11-21 18:57:59,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:59,479 INFO L93 Difference]: Finished difference Result 969 states and 2560 transitions. [2023-11-21 18:57:59,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:59,480 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 [2023-11-21 18:57:59,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:57:59,488 INFO L225 Difference]: With dead ends: 969 [2023-11-21 18:57:59,489 INFO L226 Difference]: Without dead ends: 969 [2023-11-21 18:57:59,489 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 [2023-11-21 18:57:59,492 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 31 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:57:59,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 25 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:57:59,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-11-21 18:57:59,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2023-11-21 18:57:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 962 states have (on average 2.6611226611226613) internal successors, (2560), 968 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:57:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 2560 transitions. [2023-11-21 18:57:59,542 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 2560 transitions. Word has length 2 [2023-11-21 18:57:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:57:59,542 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 2560 transitions. [2023-11-21 18:57:59,542 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) [2023-11-21 18:57:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 2560 transitions. [2023-11-21 18:57:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:57:59,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:59,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 18:57:59,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:57:59,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:57:59,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:57:59,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:59,747 INFO L85 PathProgramCache]: Analyzing trace with hash 348458771, now seen corresponding path program 1 times [2023-11-21 18:57:59,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:57:59,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110055588] [2023-11-21 18:57:59,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:59,748 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 [2023-11-21 18:57:59,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:57:59,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:57:59,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:57:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:59,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:57:59,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:57:59,875 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 [2023-11-21 18:57:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:57:59,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:57:59,885 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:57:59,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110055588] [2023-11-21 18:57:59,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110055588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:57:59,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:57:59,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 18:57:59,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669064511] [2023-11-21 18:57:59,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:57:59,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:57:59,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:57:59,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:57:59,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:57:59,891 INFO L87 Difference]: Start difference. First operand 969 states and 2560 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) [2023-11-21 18:57:59,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:57:59,997 INFO L93 Difference]: Finished difference Result 962 states and 2547 transitions. [2023-11-21 18:57:59,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:57:59,998 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 [2023-11-21 18:57:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:00,005 INFO L225 Difference]: With dead ends: 962 [2023-11-21 18:58:00,006 INFO L226 Difference]: Without dead ends: 962 [2023-11-21 18:58:00,006 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 [2023-11-21 18:58:00,007 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:00,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:58:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-21 18:58:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2023-11-21 18:58:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 956 states have (on average 2.664225941422594) internal successors, (2547), 961 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 2547 transitions. [2023-11-21 18:58:00,076 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 2547 transitions. Word has length 5 [2023-11-21 18:58:00,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:00,076 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 2547 transitions. [2023-11-21 18:58:00,076 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) [2023-11-21 18:58:00,077 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 2547 transitions. [2023-11-21 18:58:00,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:58:00,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:00,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 18:58:00,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:00,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:00,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:00,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:00,281 INFO L85 PathProgramCache]: Analyzing trace with hash 348458772, now seen corresponding path program 1 times [2023-11-21 18:58:00,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:00,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966195230] [2023-11-21 18:58:00,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:00,282 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 [2023-11-21 18:58:00,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:00,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:00,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:00,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:58:00,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:00,397 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 [2023-11-21 18:58:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:00,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:00,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:00,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966195230] [2023-11-21 18:58:00,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966195230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:00,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:00,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 18:58:00,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428815861] [2023-11-21 18:58:00,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:00,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:58:00,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:00,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:58:00,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:58:00,419 INFO L87 Difference]: Start difference. First operand 962 states and 2547 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) [2023-11-21 18:58:00,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:00,523 INFO L93 Difference]: Finished difference Result 955 states and 2534 transitions. [2023-11-21 18:58:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:58:00,525 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 [2023-11-21 18:58:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:00,534 INFO L225 Difference]: With dead ends: 955 [2023-11-21 18:58:00,535 INFO L226 Difference]: Without dead ends: 955 [2023-11-21 18:58:00,535 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 [2023-11-21 18:58:00,538 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:00,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:58:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-21 18:58:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2023-11-21 18:58:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 950 states have (on average 2.6673684210526316) internal successors, (2534), 954 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 2534 transitions. [2023-11-21 18:58:00,588 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 2534 transitions. Word has length 5 [2023-11-21 18:58:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:00,589 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 2534 transitions. [2023-11-21 18:58:00,589 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) [2023-11-21 18:58:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 2534 transitions. [2023-11-21 18:58:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:58:00,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:00,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:00,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:00,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:00,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:00,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash -383244, now seen corresponding path program 1 times [2023-11-21 18:58:00,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:00,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701787315] [2023-11-21 18:58:00,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:00,794 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 [2023-11-21 18:58:00,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:00,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:00,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:00,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:58:00,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:00,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:00,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:00,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:00,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701787315] [2023-11-21 18:58:00,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701787315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:00,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:00,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:58:00,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386006227] [2023-11-21 18:58:00,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:00,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:58:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:58:00,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:58:00,927 INFO L87 Difference]: Start difference. First operand 955 states and 2534 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-21 18:58:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:01,017 INFO L93 Difference]: Finished difference Result 857 states and 2261 transitions. [2023-11-21 18:58:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:58:01,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2023-11-21 18:58:01,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:01,027 INFO L225 Difference]: With dead ends: 857 [2023-11-21 18:58:01,028 INFO L226 Difference]: Without dead ends: 843 [2023-11-21 18:58:01,028 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 [2023-11-21 18:58:01,029 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:01,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:58:01,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-21 18:58:01,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2023-11-21 18:58:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 841 states have (on average 2.6492271105826397) internal successors, (2228), 842 states have internal predecessors, (2228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 2228 transitions. [2023-11-21 18:58:01,084 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 2228 transitions. Word has length 8 [2023-11-21 18:58:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:01,084 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 2228 transitions. [2023-11-21 18:58:01,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-21 18:58:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 2228 transitions. [2023-11-21 18:58:01,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:58:01,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:01,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:01,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:01,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:01,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:01,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:01,292 INFO L85 PathProgramCache]: Analyzing trace with hash -829301770, now seen corresponding path program 1 times [2023-11-21 18:58:01,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:01,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317769879] [2023-11-21 18:58:01,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:01,293 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 [2023-11-21 18:58:01,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:01,298 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:01,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:01,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:58:01,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:01,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:01,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:01,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317769879] [2023-11-21 18:58:01,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317769879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:01,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:01,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:58:01,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858773738] [2023-11-21 18:58:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:01,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 18:58:01,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 18:58:01,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 18:58:01,467 INFO L87 Difference]: Start difference. First operand 843 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:01,572 INFO L93 Difference]: Finished difference Result 521 states and 1218 transitions. [2023-11-21 18:58:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:58:01,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-11-21 18:58:01,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:01,577 INFO L225 Difference]: With dead ends: 521 [2023-11-21 18:58:01,577 INFO L226 Difference]: Without dead ends: 458 [2023-11-21 18:58:01,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:58:01,579 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 47 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:01,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 38 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:58:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-21 18:58:01,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2023-11-21 18:58:01,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 456 states have (on average 2.3530701754385963) internal successors, (1073), 457 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1073 transitions. [2023-11-21 18:58:01,600 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1073 transitions. Word has length 15 [2023-11-21 18:58:01,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:01,601 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 1073 transitions. [2023-11-21 18:58:01,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1073 transitions. [2023-11-21 18:58:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:58:01,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:01,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:01,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:01,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:01,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:01,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2093085895, now seen corresponding path program 1 times [2023-11-21 18:58:01,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:01,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525989016] [2023-11-21 18:58:01,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:01,817 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 [2023-11-21 18:58:01,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:01,819 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:01,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:01,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:58:01,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:02,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:02,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:02,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:02,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525989016] [2023-11-21 18:58:02,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525989016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:02,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:02,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 18:58:02,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473787100] [2023-11-21 18:58:02,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:02,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:58:02,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:02,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:58:02,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:58:02,013 INFO L87 Difference]: Start difference. First operand 458 states and 1073 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:02,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:02,138 INFO L93 Difference]: Finished difference Result 222 states and 477 transitions. [2023-11-21 18:58:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:58:02,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-21 18:58:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:02,140 INFO L225 Difference]: With dead ends: 222 [2023-11-21 18:58:02,140 INFO L226 Difference]: Without dead ends: 194 [2023-11-21 18:58:02,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 18:58:02,142 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 62 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:02,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 50 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 18:58:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-21 18:58:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-21 18:58:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 192 states have (on average 2.1510416666666665) internal successors, (413), 193 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 413 transitions. [2023-11-21 18:58:02,150 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 413 transitions. Word has length 20 [2023-11-21 18:58:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:02,150 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 413 transitions. [2023-11-21 18:58:02,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 413 transitions. [2023-11-21 18:58:02,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:58:02,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:02,152 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] [2023-11-21 18:58:02,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:02,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:02,356 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:02,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:02,356 INFO L85 PathProgramCache]: Analyzing trace with hash -433514317, now seen corresponding path program 1 times [2023-11-21 18:58:02,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:02,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104081757] [2023-11-21 18:58:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:02,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:02,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:02,359 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:02,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:02,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 18:58:02,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:02,950 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#t1588~0#1.base_39| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#t1587~0#1.base_43| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t1587~0#1.base_43|)) (= (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t1587~0#1.base_43| (_ bv0 1)) |v_ULTIMATE.start_main_~#t1588~0#1.base_39| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t1587~0#1.base_43| (_ bv1 1)) |v_ULTIMATE.start_main_~#t1588~0#1.base_39|) (_ bv0 1)))) is different from true [2023-11-21 18:58:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:02,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:02,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104081757] [2023-11-21 18:58:02,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104081757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:02,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:02,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:58:02,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431970129] [2023-11-21 18:58:02,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:02,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:58:02,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:02,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:58:02,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-21 18:58:02,954 INFO L87 Difference]: Start difference. First operand 194 states and 413 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:03,110 INFO L93 Difference]: Finished difference Result 196 states and 412 transitions. [2023-11-21 18:58:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:58:03,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-21 18:58:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:03,114 INFO L225 Difference]: With dead ends: 196 [2023-11-21 18:58:03,114 INFO L226 Difference]: Without dead ends: 194 [2023-11-21 18:58:03,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-21 18:58:03,115 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:03,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 47 Unchecked, 0.1s Time] [2023-11-21 18:58:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-21 18:58:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-21 18:58:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 192 states have (on average 2.125) internal successors, (408), 193 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 408 transitions. [2023-11-21 18:58:03,125 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 408 transitions. Word has length 27 [2023-11-21 18:58:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:03,127 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 408 transitions. [2023-11-21 18:58:03,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:03,127 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 408 transitions. [2023-11-21 18:58:03,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:58:03,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:03,129 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] [2023-11-21 18:58:03,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:03,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:03,334 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:03,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash -433512829, now seen corresponding path program 1 times [2023-11-21 18:58:03,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:03,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976241144] [2023-11-21 18:58:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:03,336 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 [2023-11-21 18:58:03,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:03,337 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:03,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:03,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:58:03,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:03,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:03,795 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:03,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976241144] [2023-11-21 18:58:03,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976241144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:03,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:03,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 18:58:03,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292131735] [2023-11-21 18:58:03,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:03,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 18:58:03,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:03,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 18:58:03,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:58:03,801 INFO L87 Difference]: Start difference. First operand 194 states and 408 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:03,992 INFO L93 Difference]: Finished difference Result 286 states and 595 transitions. [2023-11-21 18:58:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:58:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-21 18:58:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:03,996 INFO L225 Difference]: With dead ends: 286 [2023-11-21 18:58:03,996 INFO L226 Difference]: Without dead ends: 279 [2023-11-21 18:58:03,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 18:58:03,997 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:03,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 64 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 18:58:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-11-21 18:58:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 267. [2023-11-21 18:58:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 2.109433962264151) internal successors, (559), 266 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 559 transitions. [2023-11-21 18:58:04,012 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 559 transitions. Word has length 27 [2023-11-21 18:58:04,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:04,012 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 559 transitions. [2023-11-21 18:58:04,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:04,013 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 559 transitions. [2023-11-21 18:58:04,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:58:04,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:04,014 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] [2023-11-21 18:58:04,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:04,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:04,218 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:04,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:04,219 INFO L85 PathProgramCache]: Analyzing trace with hash -697848577, now seen corresponding path program 2 times [2023-11-21 18:58:04,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:04,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790718274] [2023-11-21 18:58:04,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 18:58:04,220 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 [2023-11-21 18:58:04,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:04,221 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:04,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:04,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 18:58:04,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 18:58:04,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:58:04,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:04,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:04,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790718274] [2023-11-21 18:58:04,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790718274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:04,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:04,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 18:58:04,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801555424] [2023-11-21 18:58:04,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:04,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 18:58:04,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 18:58:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 18:58:04,479 INFO L87 Difference]: Start difference. First operand 267 states and 559 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:04,704 INFO L93 Difference]: Finished difference Result 361 states and 739 transitions. [2023-11-21 18:58:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:58:04,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-21 18:58:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:04,708 INFO L225 Difference]: With dead ends: 361 [2023-11-21 18:58:04,708 INFO L226 Difference]: Without dead ends: 354 [2023-11-21 18:58:04,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 18:58:04,710 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:04,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 100 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 18:58:04,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-21 18:58:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 257. [2023-11-21 18:58:04,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 255 states have (on average 2.1019607843137256) internal successors, (536), 256 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 536 transitions. [2023-11-21 18:58:04,725 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 536 transitions. Word has length 27 [2023-11-21 18:58:04,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:04,726 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 536 transitions. [2023-11-21 18:58:04,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 536 transitions. [2023-11-21 18:58:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:58:04,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:04,728 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] [2023-11-21 18:58:04,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:04,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:04,932 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:04,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash -134004157, now seen corresponding path program 3 times [2023-11-21 18:58:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694405041] [2023-11-21 18:58:04,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 18:58:04,934 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 [2023-11-21 18:58:04,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:04,935 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:04,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:05,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-21 18:58:05,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 18:58:05,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:58:05,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:05,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:58:05,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 18:58:05,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694405041] [2023-11-21 18:58:05,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694405041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:05,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:05,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 18:58:05,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483972744] [2023-11-21 18:58:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:05,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 18:58:05,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 18:58:05,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 18:58:05,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 18:58:05,178 INFO L87 Difference]: Start difference. First operand 257 states and 536 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:05,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:05,373 INFO L93 Difference]: Finished difference Result 414 states and 844 transitions. [2023-11-21 18:58:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:58:05,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-21 18:58:05,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:05,377 INFO L225 Difference]: With dead ends: 414 [2023-11-21 18:58:05,377 INFO L226 Difference]: Without dead ends: 407 [2023-11-21 18:58:05,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 18:58:05,378 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:05,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 100 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 18:58:05,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-21 18:58:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 247. [2023-11-21 18:58:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 245 states have (on average 2.093877551020408) internal successors, (513), 246 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:05,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 513 transitions. [2023-11-21 18:58:05,389 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 513 transitions. Word has length 27 [2023-11-21 18:58:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:05,389 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 513 transitions. [2023-11-21 18:58:05,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 513 transitions. [2023-11-21 18:58:05,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:58:05,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:05,391 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] [2023-11-21 18:58:05,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:05,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:05,594 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-21 18:58:05,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:05,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161731, now seen corresponding path program 4 times [2023-11-21 18:58:05,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:05,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418049204] [2023-11-21 18:58:05,595 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-21 18:58:05,595 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 [2023-11-21 18:58:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:05,597 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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) [2023-11-21 18:58:05,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:05,743 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-21 18:58:05,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-21 18:58:05,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:58:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:58:05,870 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-21 18:58:05,871 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 18:58:05,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-11-21 18:58:05,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2023-11-21 18:58:05,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-11-21 18:58:05,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-11-21 18:58:05,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-11-21 18:58:05,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2023-11-21 18:58:05,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-11-21 18:58:05,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-11-21 18:58:05,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-11-21 18:58:05,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-11-21 18:58:05,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -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 [2023-11-21 18:58:06,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:58:06,121 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:06,126 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 18:58:06,126 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 18:58:06,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated [2023-11-21 18:58:06,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 18:58:06,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 18:58:06,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 18:58:06,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 06:58:06 BasicIcfg [2023-11-21 18:58:06,217 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 18:58:06,217 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:58:06,217 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:58:06,217 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:58:06,218 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:58" (3/4) ... [2023-11-21 18:58:06,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:58:06,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:58:06,220 INFO L158 Benchmark]: Toolchain (without parser) took 9824.95ms. Allocated memory was 75.5MB in the beginning and 125.8MB in the end (delta: 50.3MB). Free memory was 45.3MB in the beginning and 87.5MB in the end (delta: -42.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-21 18:58:06,221 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory was 50.9MB in the beginning and 50.8MB in the end (delta: 125.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:58:06,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.05ms. Allocated memory is still 75.5MB. Free memory was 45.1MB in the beginning and 42.3MB in the end (delta: 2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:58:06,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.24ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 39.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:58:06,222 INFO L158 Benchmark]: Boogie Preprocessor took 35.81ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 37.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:58:06,222 INFO L158 Benchmark]: RCFGBuilder took 955.94ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 37.5MB in the beginning and 60.3MB in the end (delta: -22.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-21 18:58:06,223 INFO L158 Benchmark]: TraceAbstraction took 8074.08ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 59.6MB in the beginning and 87.5MB in the end (delta: -28.0MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2023-11-21 18:58:06,223 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 125.8MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:58:06,225 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory was 50.9MB in the beginning and 50.8MB in the end (delta: 125.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.05ms. Allocated memory is still 75.5MB. Free memory was 45.1MB in the beginning and 42.3MB in the end (delta: 2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.24ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 39.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.81ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 37.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 955.94ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 37.5MB in the beginning and 60.3MB in the end (delta: -22.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8074.08ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 59.6MB in the beginning and 87.5MB in the end (delta: -28.0MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 125.8MB. Free memory is still 87.5MB. 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~pre3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L800] 0 pthread_t t1587; [L801] FCALL, FORK 0 pthread_create(&t1587, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1587={7:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L802] 0 pthread_t t1588; [L803] FCALL, FORK 0 pthread_create(&t1588, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1587={7:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L762] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L762] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L769] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L775] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L738] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L805] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={7:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L807] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L807] RET 0 assume_abort_if_not(main$tmp_guard0) [L809] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L810] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L811] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L812] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L813] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={7:0}, t1588={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L816] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L817] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L818] 0 x$flush_delayed = weak$$choice2 [L819] 0 x$mem_tmp = x [L820] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L821] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L822] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L823] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L824] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L825] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L826] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) [L828] 0 x = x$flush_delayed ? x$mem_tmp : x [L829] 0 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1587={7:0}, t1588={3:0}, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L17] 0 __assert_fail ("0", "rfi000_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - 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: 798]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 803]: 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: 801]: 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 5 procedures, 61 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 356 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 356 mSDsluCounter, 522 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 47 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 726 IncrementalHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 201 mSDtfsCounter, 726 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1041occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 269 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 154 ConstructedInterpolants, 1 QuantifiedInterpolants, 954 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1077 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:58:06,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dde2cf8-bcb9-41d1-a817-ea9e3d37aeaf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample