./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ --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 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:48:44,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:48:44,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:48:44,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:48:44,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:48:44,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:48:44,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:48:44,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:48:44,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:48:44,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:48:44,670 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:48:44,671 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:48:44,671 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:48:44,672 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:48:44,672 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:48:44,673 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:48:44,674 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:48:44,674 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:48:44,675 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:48:44,675 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:48:44,676 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:48:44,677 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:48:44,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:48:44,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:48:44,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:48:44,679 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:48:44,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:48:44,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:48:44,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:48:44,682 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:48:44,682 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:48:44,683 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:48:44,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:48:44,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:48:44,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:48:44,685 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:48:44,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:48:44,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:48:44,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:48:44,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:44,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:48:44,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:48:44,688 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:48:44,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:48:44,689 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:48:44,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:48:44,690 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_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f [2023-11-19 04:48:44,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:48:44,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:48:44,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:48:44,979 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:48:44,980 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:48:44,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 04:48:48,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:48,559 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:48,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 04:48:48,612 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data/b426cc863/cd46e792518444b0a57931c2ccd28247/FLAG21136aa08 [2023-11-19 04:48:48,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data/b426cc863/cd46e792518444b0a57931c2ccd28247 [2023-11-19 04:48:48,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:48,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:48,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:48,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:48,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:48,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:48" (1/1) ... [2023-11-19 04:48:48,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c491e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:48, skipping insertion in model container [2023-11-19 04:48:48,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:48" (1/1) ... [2023-11-19 04:48:48,707 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:49,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:49,212 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:49,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:49,354 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:48:49,355 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:48:49,362 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:49,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49 WrapperNode [2023-11-19 04:48:49,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:49,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:49,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:49,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:49,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,464 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-19 04:48:49,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:49,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:49,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:49,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:49,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:49,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:49,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:49,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:49,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (1/1) ... [2023-11-19 04:48:49,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:49,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:49,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:49,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:48:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:48:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:48:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:48:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:48:49,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:48:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:48:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:48:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:48:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:48:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 04:48:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 04:48:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:48:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:49,635 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:48:49,849 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:49,852 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:50,391 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:50,591 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:50,591 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:48:50,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:50 BoogieIcfgContainer [2023-11-19 04:48:50,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:50,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:50,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:50,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:50,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:48" (1/3) ... [2023-11-19 04:48:50,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5e6624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:50, skipping insertion in model container [2023-11-19 04:48:50,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:49" (2/3) ... [2023-11-19 04:48:50,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5e6624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:50, skipping insertion in model container [2023-11-19 04:48:50,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:50" (3/3) ... [2023-11-19 04:48:50,611 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 04:48:50,632 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:50,632 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 04:48:50,632 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:48:50,728 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:48:50,776 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:48:50,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 154 transitions, 324 flow [2023-11-19 04:48:50,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 154 transitions, 324 flow [2023-11-19 04:48:50,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 154 transitions, 324 flow [2023-11-19 04:48:50,884 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-19 04:48:50,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:48:50,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 4/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2023-11-19 04:48:50,900 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380 [2023-11-19 04:48:58,149 INFO L134 LiptonReduction]: Checked pairs total: 11515 [2023-11-19 04:48:58,150 INFO L136 LiptonReduction]: Total number of compositions: 148 [2023-11-19 04:48:58,159 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 46 transitions, 108 flow [2023-11-19 04:48:58,583 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6448 states, 6429 states have (on average 4.303624202830922) internal successors, (27668), 6447 states have internal predecessors, (27668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:48:58,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:58,609 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;@20fffafb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:58,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 04:48:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 6448 states, 6429 states have (on average 4.303624202830922) internal successors, (27668), 6447 states have internal predecessors, (27668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:48:58,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:48:58,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:58,648 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:48:58,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:48:58,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:58,655 INFO L85 PathProgramCache]: Analyzing trace with hash 664, now seen corresponding path program 1 times [2023-11-19 04:48:58,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:58,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744500086] [2023-11-19 04:48:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:58,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:48:58,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:48:58,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744500086] [2023-11-19 04:48:58,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744500086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:58,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:58,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:48:58,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128802906] [2023-11-19 04:48:58,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:58,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:48:58,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:48:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:48:58,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:48:58,883 INFO L87 Difference]: Start difference. First operand has 6448 states, 6429 states have (on average 4.303624202830922) internal successors, (27668), 6447 states have internal predecessors, (27668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:48:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:59,130 INFO L93 Difference]: Finished difference Result 6074 states and 24532 transitions. [2023-11-19 04:48:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:48:59,133 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-19 04:48:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:59,304 INFO L225 Difference]: With dead ends: 6074 [2023-11-19 04:48:59,305 INFO L226 Difference]: Without dead ends: 6074 [2023-11-19 04:48:59,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:48:59,309 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:59,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:48:59,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2023-11-19 04:48:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 6074. [2023-11-19 04:48:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6069 states have (on average 4.042181578513758) internal successors, (24532), 6073 states have internal predecessors, (24532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:48:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 24532 transitions. [2023-11-19 04:48:59,832 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 24532 transitions. Word has length 1 [2023-11-19 04:48:59,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:59,833 INFO L495 AbstractCegarLoop]: Abstraction has 6074 states and 24532 transitions. [2023-11-19 04:48:59,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:48:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 24532 transitions. [2023-11-19 04:48:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:48:59,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:59,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 04:48:59,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:48:59,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:48:59,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:59,836 INFO L85 PathProgramCache]: Analyzing trace with hash 654522, now seen corresponding path program 1 times [2023-11-19 04:48:59,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:59,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117312894] [2023-11-19 04:48:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:59,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:00,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:00,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117312894] [2023-11-19 04:49:00,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117312894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:00,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:00,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:49:00,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762121081] [2023-11-19 04:49:00,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:00,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:00,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:00,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:00,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:00,226 INFO L87 Difference]: Start difference. First operand 6074 states and 24532 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:00,443 INFO L93 Difference]: Finished difference Result 4962 states and 19815 transitions. [2023-11-19 04:49:00,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:00,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 04:49:00,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:00,507 INFO L225 Difference]: With dead ends: 4962 [2023-11-19 04:49:00,507 INFO L226 Difference]: Without dead ends: 4812 [2023-11-19 04:49:00,508 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 [2023-11-19 04:49:00,510 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:00,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 8 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:49:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2023-11-19 04:49:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4812. [2023-11-19 04:49:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4810 states have (on average 4.012474012474012) internal successors, (19300), 4811 states have internal predecessors, (19300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 19300 transitions. [2023-11-19 04:49:00,947 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 19300 transitions. Word has length 3 [2023-11-19 04:49:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:00,948 INFO L495 AbstractCegarLoop]: Abstraction has 4812 states and 19300 transitions. [2023-11-19 04:49:00,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 19300 transitions. [2023-11-19 04:49:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:49:00,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:00,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:00,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:49:00,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:00,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:00,967 INFO L85 PathProgramCache]: Analyzing trace with hash -576106061, now seen corresponding path program 1 times [2023-11-19 04:49:00,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:00,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570582247] [2023-11-19 04:49:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:02,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570582247] [2023-11-19 04:49:02,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570582247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:02,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:02,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:49:02,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110118415] [2023-11-19 04:49:02,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:02,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:49:02,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:02,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:49:02,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:49:02,300 INFO L87 Difference]: Start difference. First operand 4812 states and 19300 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:02,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:02,645 INFO L93 Difference]: Finished difference Result 4062 states and 16125 transitions. [2023-11-19 04:49:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:49:02,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 04:49:02,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:02,684 INFO L225 Difference]: With dead ends: 4062 [2023-11-19 04:49:02,684 INFO L226 Difference]: Without dead ends: 4062 [2023-11-19 04:49:02,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:49:02,686 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 73 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:02,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 40 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:49:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2023-11-19 04:49:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4062. [2023-11-19 04:49:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4062 states, 4061 states have (on average 3.9706968726914553) internal successors, (16125), 4061 states have internal predecessors, (16125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4062 states to 4062 states and 16125 transitions. [2023-11-19 04:49:02,941 INFO L78 Accepts]: Start accepts. Automaton has 4062 states and 16125 transitions. Word has length 12 [2023-11-19 04:49:02,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:02,942 INFO L495 AbstractCegarLoop]: Abstraction has 4062 states and 16125 transitions. [2023-11-19 04:49:02,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4062 states and 16125 transitions. [2023-11-19 04:49:02,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:49:02,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:02,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:02,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:49:02,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:02,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:02,946 INFO L85 PathProgramCache]: Analyzing trace with hash -576106075, now seen corresponding path program 1 times [2023-11-19 04:49:02,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:02,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883786217] [2023-11-19 04:49:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:02,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:03,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:03,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883786217] [2023-11-19 04:49:03,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883786217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:03,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:03,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:49:03,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791802663] [2023-11-19 04:49:03,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:03,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:49:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:49:03,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:49:03,180 INFO L87 Difference]: Start difference. First operand 4062 states and 16125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:03,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:03,565 INFO L93 Difference]: Finished difference Result 7562 states and 28740 transitions. [2023-11-19 04:49:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:49:03,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 04:49:03,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:03,616 INFO L225 Difference]: With dead ends: 7562 [2023-11-19 04:49:03,617 INFO L226 Difference]: Without dead ends: 6131 [2023-11-19 04:49:03,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:03,622 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 39 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:03,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 15 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:03,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2023-11-19 04:49:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 5255. [2023-11-19 04:49:03,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 3.897030833650552) internal successors, (20475), 5254 states have internal predecessors, (20475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 20475 transitions. [2023-11-19 04:49:03,886 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 20475 transitions. Word has length 12 [2023-11-19 04:49:03,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:03,887 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 20475 transitions. [2023-11-19 04:49:03,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 20475 transitions. [2023-11-19 04:49:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:49:03,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:03,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:03,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:49:03,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:03,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:03,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1896518431, now seen corresponding path program 1 times [2023-11-19 04:49:03,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:03,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052961224] [2023-11-19 04:49:03,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:03,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:04,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:04,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052961224] [2023-11-19 04:49:04,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052961224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:04,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:04,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:04,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104099999] [2023-11-19 04:49:04,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:04,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:04,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:04,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:04,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:04,078 INFO L87 Difference]: Start difference. First operand 5255 states and 20475 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:04,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:04,547 INFO L93 Difference]: Finished difference Result 6361 states and 23837 transitions. [2023-11-19 04:49:04,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:49:04,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 04:49:04,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:04,578 INFO L225 Difference]: With dead ends: 6361 [2023-11-19 04:49:04,578 INFO L226 Difference]: Without dead ends: 5395 [2023-11-19 04:49:04,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:49:04,580 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 59 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:04,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 22 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2023-11-19 04:49:04,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 4219. [2023-11-19 04:49:04,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4219 states, 4218 states have (on average 3.8760075865339023) internal successors, (16349), 4218 states have internal predecessors, (16349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 16349 transitions. [2023-11-19 04:49:04,784 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 16349 transitions. Word has length 13 [2023-11-19 04:49:04,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:04,785 INFO L495 AbstractCegarLoop]: Abstraction has 4219 states and 16349 transitions. [2023-11-19 04:49:04,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 16349 transitions. [2023-11-19 04:49:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:49:04,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:04,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:49:04,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:04,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash 412605800, now seen corresponding path program 1 times [2023-11-19 04:49:04,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:04,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23652053] [2023-11-19 04:49:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:04,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:05,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:05,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:05,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23652053] [2023-11-19 04:49:05,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23652053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:05,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:05,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:05,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792964688] [2023-11-19 04:49:05,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:05,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:05,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:05,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:05,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:05,021 INFO L87 Difference]: Start difference. First operand 4219 states and 16349 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:05,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:05,304 INFO L93 Difference]: Finished difference Result 5989 states and 22265 transitions. [2023-11-19 04:49:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:49:05,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-19 04:49:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:05,333 INFO L225 Difference]: With dead ends: 5989 [2023-11-19 04:49:05,334 INFO L226 Difference]: Without dead ends: 5195 [2023-11-19 04:49:05,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:49:05,335 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:05,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 14 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2023-11-19 04:49:05,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 4139. [2023-11-19 04:49:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 4138 states have (on average 3.8629772837119383) internal successors, (15985), 4138 states have internal predecessors, (15985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:05,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 15985 transitions. [2023-11-19 04:49:05,571 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 15985 transitions. Word has length 14 [2023-11-19 04:49:05,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:05,571 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 15985 transitions. [2023-11-19 04:49:05,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 15985 transitions. [2023-11-19 04:49:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:49:05,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:05,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:05,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:49:05,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:05,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:05,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1488315996, now seen corresponding path program 1 times [2023-11-19 04:49:05,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:05,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601927844] [2023-11-19 04:49:05,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:05,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:05,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:05,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601927844] [2023-11-19 04:49:05,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601927844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:05,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:05,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559661847] [2023-11-19 04:49:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:05,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:49:05,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:49:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:49:05,725 INFO L87 Difference]: Start difference. First operand 4139 states and 15985 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) [2023-11-19 04:49:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:05,865 INFO L93 Difference]: Finished difference Result 3972 states and 13808 transitions. [2023-11-19 04:49:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:49:05,866 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 [2023-11-19 04:49:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:05,880 INFO L225 Difference]: With dead ends: 3972 [2023-11-19 04:49:05,880 INFO L226 Difference]: Without dead ends: 3003 [2023-11-19 04:49:05,881 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 [2023-11-19 04:49:05,881 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 60 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:05,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 12 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:49:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2023-11-19 04:49:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 3003. [2023-11-19 04:49:05,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 3002 states have (on average 3.438041305796136) internal successors, (10321), 3002 states have internal predecessors, (10321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 10321 transitions. [2023-11-19 04:49:05,977 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 10321 transitions. Word has length 15 [2023-11-19 04:49:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:05,978 INFO L495 AbstractCegarLoop]: Abstraction has 3003 states and 10321 transitions. [2023-11-19 04:49:05,978 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) [2023-11-19 04:49:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 10321 transitions. [2023-11-19 04:49:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:49:05,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:05,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:05,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:49:05,983 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:05,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:05,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1019579718, now seen corresponding path program 1 times [2023-11-19 04:49:05,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:05,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641069798] [2023-11-19 04:49:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:06,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:06,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641069798] [2023-11-19 04:49:06,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641069798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:06,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:06,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717514134] [2023-11-19 04:49:06,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:06,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:49:06,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:49:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:49:06,251 INFO L87 Difference]: Start difference. First operand 3003 states and 10321 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:06,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:06,465 INFO L93 Difference]: Finished difference Result 4527 states and 15154 transitions. [2023-11-19 04:49:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:49:06,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2023-11-19 04:49:06,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:06,479 INFO L225 Difference]: With dead ends: 4527 [2023-11-19 04:49:06,479 INFO L226 Difference]: Without dead ends: 2830 [2023-11-19 04:49:06,480 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 [2023-11-19 04:49:06,481 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:06,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 22 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2023-11-19 04:49:06,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2434. [2023-11-19 04:49:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2434 states, 2433 states have (on average 3.340320591861899) internal successors, (8127), 2433 states have internal predecessors, (8127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 8127 transitions. [2023-11-19 04:49:06,593 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 8127 transitions. Word has length 18 [2023-11-19 04:49:06,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:06,593 INFO L495 AbstractCegarLoop]: Abstraction has 2434 states and 8127 transitions. [2023-11-19 04:49:06,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 8127 transitions. [2023-11-19 04:49:06,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:49:06,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:06,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:06,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:49:06,604 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:06,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:06,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1820364152, now seen corresponding path program 1 times [2023-11-19 04:49:06,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:06,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095176124] [2023-11-19 04:49:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:06,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:06,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:06,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095176124] [2023-11-19 04:49:06,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095176124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:06,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:06,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:49:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780858754] [2023-11-19 04:49:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:06,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:06,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:06,917 INFO L87 Difference]: Start difference. First operand 2434 states and 8127 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:07,108 INFO L93 Difference]: Finished difference Result 1920 states and 5834 transitions. [2023-11-19 04:49:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:49:07,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2023-11-19 04:49:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:07,115 INFO L225 Difference]: With dead ends: 1920 [2023-11-19 04:49:07,115 INFO L226 Difference]: Without dead ends: 1490 [2023-11-19 04:49:07,116 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 [2023-11-19 04:49:07,116 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 98 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:07,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 16 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:07,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2023-11-19 04:49:07,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1490. [2023-11-19 04:49:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 2.985224983210208) internal successors, (4445), 1489 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 4445 transitions. [2023-11-19 04:49:07,173 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 4445 transitions. Word has length 18 [2023-11-19 04:49:07,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:07,174 INFO L495 AbstractCegarLoop]: Abstraction has 1490 states and 4445 transitions. [2023-11-19 04:49:07,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 4445 transitions. [2023-11-19 04:49:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:49:07,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:07,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:07,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:49:07,181 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:07,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash 831198924, now seen corresponding path program 1 times [2023-11-19 04:49:07,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:07,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725483454] [2023-11-19 04:49:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:07,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:07,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:07,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725483454] [2023-11-19 04:49:07,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725483454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:07,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:07,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:49:07,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010912480] [2023-11-19 04:49:07,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:07,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:49:07,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:07,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:49:07,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:49:07,497 INFO L87 Difference]: Start difference. First operand 1490 states and 4445 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:07,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:07,717 INFO L93 Difference]: Finished difference Result 1254 states and 3711 transitions. [2023-11-19 04:49:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:49:07,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-19 04:49:07,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:07,722 INFO L225 Difference]: With dead ends: 1254 [2023-11-19 04:49:07,722 INFO L226 Difference]: Without dead ends: 1128 [2023-11-19 04:49:07,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:49:07,724 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 135 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:07,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 20 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:07,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-11-19 04:49:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2023-11-19 04:49:07,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1127 states have (on average 3.0017746228926354) internal successors, (3383), 1127 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3383 transitions. [2023-11-19 04:49:07,767 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3383 transitions. Word has length 21 [2023-11-19 04:49:07,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:07,768 INFO L495 AbstractCegarLoop]: Abstraction has 1128 states and 3383 transitions. [2023-11-19 04:49:07,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3383 transitions. [2023-11-19 04:49:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 04:49:07,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:07,773 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] [2023-11-19 04:49:07,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 04:49:07,774 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:07,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:07,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1940877614, now seen corresponding path program 1 times [2023-11-19 04:49:07,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:07,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100587294] [2023-11-19 04:49:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:07,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:08,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100587294] [2023-11-19 04:49:08,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100587294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:08,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:49:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058398584] [2023-11-19 04:49:08,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:08,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:49:08,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:08,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:49:08,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:49:08,746 INFO L87 Difference]: Start difference. First operand 1128 states and 3383 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:09,227 INFO L93 Difference]: Finished difference Result 1725 states and 4962 transitions. [2023-11-19 04:49:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:49:09,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-11-19 04:49:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:09,232 INFO L225 Difference]: With dead ends: 1725 [2023-11-19 04:49:09,232 INFO L226 Difference]: Without dead ends: 1471 [2023-11-19 04:49:09,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-19 04:49:09,233 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 93 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:09,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 58 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:49:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2023-11-19 04:49:09,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1291. [2023-11-19 04:49:09,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1290 states have (on average 2.962015503875969) internal successors, (3821), 1290 states have internal predecessors, (3821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:09,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 3821 transitions. [2023-11-19 04:49:09,270 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 3821 transitions. Word has length 25 [2023-11-19 04:49:09,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:09,271 INFO L495 AbstractCegarLoop]: Abstraction has 1291 states and 3821 transitions. [2023-11-19 04:49:09,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:09,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 3821 transitions. [2023-11-19 04:49:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 04:49:09,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:09,276 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] [2023-11-19 04:49:09,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 04:49:09,276 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:09,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1152435912, now seen corresponding path program 2 times [2023-11-19 04:49:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248037901] [2023-11-19 04:49:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:09,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:09,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248037901] [2023-11-19 04:49:09,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248037901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:09,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:09,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:49:09,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719119355] [2023-11-19 04:49:09,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:09,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:49:09,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:09,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:49:09,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:49:09,644 INFO L87 Difference]: Start difference. First operand 1291 states and 3821 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:09,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:09,858 INFO L93 Difference]: Finished difference Result 1247 states and 3729 transitions. [2023-11-19 04:49:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:49:09,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-11-19 04:49:09,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:09,862 INFO L225 Difference]: With dead ends: 1247 [2023-11-19 04:49:09,862 INFO L226 Difference]: Without dead ends: 790 [2023-11-19 04:49:09,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:49:09,863 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 144 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:09,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 15 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:49:09,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-19 04:49:09,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2023-11-19 04:49:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 2.9340937896070978) internal successors, (2315), 789 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 2315 transitions. [2023-11-19 04:49:09,886 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 2315 transitions. Word has length 25 [2023-11-19 04:49:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:09,886 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 2315 transitions. [2023-11-19 04:49:09,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:09,887 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 2315 transitions. [2023-11-19 04:49:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 04:49:09,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:09,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:09,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 04:49:09,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:09,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1963697672, now seen corresponding path program 1 times [2023-11-19 04:49:09,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:09,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222325196] [2023-11-19 04:49:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:09,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:49:11,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:11,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222325196] [2023-11-19 04:49:11,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222325196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:11,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:11,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:49:11,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493671483] [2023-11-19 04:49:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:11,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:49:11,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:11,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:49:11,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:49:11,213 INFO L87 Difference]: Start difference. First operand 790 states and 2315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:11,640 INFO L93 Difference]: Finished difference Result 853 states and 2466 transitions. [2023-11-19 04:49:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:49:11,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2023-11-19 04:49:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:11,642 INFO L225 Difference]: With dead ends: 853 [2023-11-19 04:49:11,642 INFO L226 Difference]: Without dead ends: 516 [2023-11-19 04:49:11,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-19 04:49:11,643 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:11,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 53 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:49:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-11-19 04:49:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 456. [2023-11-19 04:49:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 2.7274725274725276) internal successors, (1241), 455 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 1241 transitions. [2023-11-19 04:49:11,668 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 1241 transitions. Word has length 29 [2023-11-19 04:49:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:11,669 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 1241 transitions. [2023-11-19 04:49:11,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:49:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 1241 transitions. [2023-11-19 04:49:11,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 04:49:11,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:11,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:11,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 04:49:11,673 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 04:49:11,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:11,673 INFO L85 PathProgramCache]: Analyzing trace with hash 437749410, now seen corresponding path program 2 times [2023-11-19 04:49:11,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:11,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152617702] [2023-11-19 04:49:11,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:11,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:49:11,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:49:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:49:11,946 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:49:11,946 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:49:11,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-11-19 04:49:11,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-11-19 04:49:11,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-11-19 04:49:11,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-11-19 04:49:11,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-11-19 04:49:11,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-11-19 04:49:11,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-11-19 04:49:11,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-11-19 04:49:11,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-11-19 04:49:11,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-11-19 04:49:11,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-11-19 04:49:11,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-11-19 04:49:11,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-11-19 04:49:11,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-11-19 04:49:11,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-11-19 04:49:11,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-11-19 04:49:11,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 04:49:11,957 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:11,964 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:49:11,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:49:12,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 04:49:12,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 04:49:12,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 04:49:12,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-19 04:49:12,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:49:12 BasicIcfg [2023-11-19 04:49:12,114 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:49:12,115 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:49:12,115 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:49:12,115 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:49:12,116 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:50" (3/4) ... [2023-11-19 04:49:12,118 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:49:12,119 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:49:12,120 INFO L158 Benchmark]: Toolchain (without parser) took 23488.75ms. Allocated memory was 190.8MB in the beginning and 910.2MB in the end (delta: 719.3MB). Free memory was 141.7MB in the beginning and 646.4MB in the end (delta: -504.7MB). Peak memory consumption was 216.4MB. Max. memory is 16.1GB. [2023-11-19 04:49:12,120 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 190.8MB. Free memory was 152.1MB in the beginning and 152.0MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:49:12,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.31ms. Allocated memory is still 190.8MB. Free memory was 141.7MB in the beginning and 117.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:49:12,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.37ms. Allocated memory is still 190.8MB. Free memory was 117.1MB in the beginning and 114.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:49:12,122 INFO L158 Benchmark]: Boogie Preprocessor took 76.86ms. Allocated memory is still 190.8MB. Free memory was 114.5MB in the beginning and 112.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:49:12,123 INFO L158 Benchmark]: RCFGBuilder took 1053.68ms. Allocated memory was 190.8MB in the beginning and 297.8MB in the end (delta: 107.0MB). Free memory was 112.4MB in the beginning and 238.3MB in the end (delta: -125.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-11-19 04:49:12,123 INFO L158 Benchmark]: TraceAbstraction took 21513.49ms. Allocated memory was 297.8MB in the beginning and 910.2MB in the end (delta: 612.4MB). Free memory was 237.3MB in the beginning and 647.5MB in the end (delta: -410.2MB). Peak memory consumption was 202.2MB. Max. memory is 16.1GB. [2023-11-19 04:49:12,124 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 910.2MB. Free memory was 647.5MB in the beginning and 646.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:49:12,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 190.8MB. Free memory was 152.1MB in the beginning and 152.0MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.31ms. Allocated memory is still 190.8MB. Free memory was 141.7MB in the beginning and 117.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.37ms. Allocated memory is still 190.8MB. Free memory was 117.1MB in the beginning and 114.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.86ms. Allocated memory is still 190.8MB. Free memory was 114.5MB in the beginning and 112.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1053.68ms. Allocated memory was 190.8MB in the beginning and 297.8MB in the end (delta: 107.0MB). Free memory was 112.4MB in the beginning and 238.3MB in the end (delta: -125.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21513.49ms. Allocated memory was 297.8MB in the beginning and 910.2MB in the end (delta: 612.4MB). Free memory was 237.3MB in the beginning and 647.5MB in the end (delta: -410.2MB). Peak memory consumption was 202.2MB. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 910.2MB. Free memory was 647.5MB in the beginning and 646.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 163 PlacesBefore, 57 PlacesAfterwards, 154 TransitionsBefore, 46 TransitionsAfterwards, 4380 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 148 TotalNumberOfCompositions, 11515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5795, independent: 5566, independent conditional: 0, independent unconditional: 5566, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3268, independent: 3205, independent conditional: 0, independent unconditional: 3205, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3268, independent: 3164, independent conditional: 0, independent unconditional: 3164, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 104, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 428, dependent conditional: 0, dependent unconditional: 428, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5795, independent: 2361, independent conditional: 0, independent unconditional: 2361, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 3268, unknown conditional: 0, unknown unconditional: 3268] , Statistics on independence cache: Total cache size (in pairs): 325, Positive cache size: 296, Positive conditional cache size: 0, Positive unconditional cache size: 296, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool b$flush_delayed; [L724] 0 int b$mem_tmp; [L725] 0 _Bool b$r_buff0_thd0; [L726] 0 _Bool b$r_buff0_thd1; [L727] 0 _Bool b$r_buff0_thd2; [L728] 0 _Bool b$r_buff0_thd3; [L729] 0 _Bool b$r_buff0_thd4; [L730] 0 _Bool b$r_buff1_thd0; [L731] 0 _Bool b$r_buff1_thd1; [L732] 0 _Bool b$r_buff1_thd2; [L733] 0 _Bool b$r_buff1_thd3; [L734] 0 _Bool b$r_buff1_thd4; [L735] 0 _Bool b$read_delayed; [L736] 0 int *b$read_delayed_var; [L737] 0 int b$w_buff0; [L738] 0 _Bool b$w_buff0_used; [L739] 0 int b$w_buff1; [L740] 0 _Bool b$w_buff1_used; [L741] 0 _Bool main$tmp_guard0; [L742] 0 _Bool main$tmp_guard1; [L744] 0 int x = 0; [L746] 0 int y = 0; [L748] 0 int z = 0; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L871] 0 pthread_t t969; [L872] FCALL, FORK 0 pthread_create(&t969, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=0, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=0, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t969={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L754] 1 b$w_buff1 = b$w_buff0 [L755] 1 b$w_buff0 = 1 [L756] 1 b$w_buff1_used = b$w_buff0_used [L757] 1 b$w_buff0_used = (_Bool)1 [L758] CALL 1 __VERIFIER_assert(!(b$w_buff1_used && b$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L758] RET 1 __VERIFIER_assert(!(b$w_buff1_used && b$w_buff0_used)) [L759] 1 b$r_buff1_thd0 = b$r_buff0_thd0 [L760] 1 b$r_buff1_thd1 = b$r_buff0_thd1 [L761] 1 b$r_buff1_thd2 = b$r_buff0_thd2 [L762] 1 b$r_buff1_thd3 = b$r_buff0_thd3 [L763] 1 b$r_buff1_thd4 = b$r_buff0_thd4 [L764] 1 b$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L767] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L873] 0 pthread_t t970; [L874] FCALL, FORK 0 pthread_create(&t970, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t969={5:0}, t970={6:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L784] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L787] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L875] 0 pthread_t t971; [L876] FCALL, FORK 0 pthread_create(&t971, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t969={5:0}, t970={6:0}, t971={7:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L804] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L807] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L810] 3 b = b$w_buff0_used && b$r_buff0_thd3 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd3 ? b$w_buff1 : b) [L811] 3 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd3 ? (_Bool)0 : b$w_buff0_used [L812] 3 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd3 || b$w_buff1_used && b$r_buff1_thd3 ? (_Bool)0 : b$w_buff1_used [L813] 3 b$r_buff0_thd3 = b$w_buff0_used && b$r_buff0_thd3 ? (_Bool)0 : b$r_buff0_thd3 [L814] 3 b$r_buff1_thd3 = b$w_buff0_used && b$r_buff0_thd3 || b$w_buff1_used && b$r_buff1_thd3 ? (_Bool)0 : b$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L817] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L819] 3 return 0; [L790] 2 b = b$w_buff0_used && b$r_buff0_thd2 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd2 ? b$w_buff1 : b) [L791] 2 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd2 ? (_Bool)0 : b$w_buff0_used [L792] 2 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd2 || b$w_buff1_used && b$r_buff1_thd2 ? (_Bool)0 : b$w_buff1_used [L793] 2 b$r_buff0_thd2 = b$w_buff0_used && b$r_buff0_thd2 ? (_Bool)0 : b$r_buff0_thd2 [L794] 2 b$r_buff1_thd2 = b$w_buff0_used && b$r_buff0_thd2 || b$w_buff1_used && b$r_buff1_thd2 ? (_Bool)0 : b$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L877] 0 pthread_t t972; [L878] FCALL, FORK 0 pthread_create(&t972, ((void *)0), P3, ((void *)0)) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t969={5:0}, t970={6:0}, t971={7:0}, t972={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L824] 4 z = 1 [L827] 4 a = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L830] 4 __unbuffered_p3_EAX = a VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L833] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L834] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L835] 4 b$flush_delayed = weak$$choice2 [L836] 4 b$mem_tmp = b [L837] 4 b = !b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : b$w_buff1) [L838] 4 b$w_buff0 = weak$$choice2 ? b$w_buff0 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff0 : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : b$w_buff0)) [L839] 4 b$w_buff1 = weak$$choice2 ? b$w_buff1 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff1 : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff1 : b$w_buff1)) [L840] 4 b$w_buff0_used = weak$$choice2 ? b$w_buff0_used : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff0_used : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$w_buff0_used)) [L841] 4 b$w_buff1_used = weak$$choice2 ? b$w_buff1_used : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff1_used : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L842] 4 b$r_buff0_thd4 = weak$$choice2 ? b$r_buff0_thd4 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$r_buff0_thd4 : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$r_buff0_thd4)) [L843] 4 b$r_buff1_thd4 = weak$$choice2 ? b$r_buff1_thd4 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$r_buff1_thd4 : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L844] 4 __unbuffered_p3_EBX = b [L845] 4 b = b$flush_delayed ? b$mem_tmp : b [L846] 4 b$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L770] 1 b = b$w_buff0_used && b$r_buff0_thd1 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd1 ? b$w_buff1 : b) [L771] 1 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd1 ? (_Bool)0 : b$w_buff0_used [L772] 1 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd1 || b$w_buff1_used && b$r_buff1_thd1 ? (_Bool)0 : b$w_buff1_used [L773] 1 b$r_buff0_thd1 = b$w_buff0_used && b$r_buff0_thd1 ? (_Bool)0 : b$r_buff0_thd1 [L774] 1 b$r_buff1_thd1 = b$w_buff0_used && b$r_buff0_thd1 || b$w_buff1_used && b$r_buff1_thd1 ? (_Bool)0 : b$r_buff1_thd1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L777] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 1 return 0; [L849] 4 b = b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd4 ? b$w_buff1 : b) [L850] 4 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$w_buff0_used [L851] 4 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd4 || b$w_buff1_used && b$r_buff1_thd4 ? (_Bool)0 : b$w_buff1_used [L852] 4 b$r_buff0_thd4 = b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$r_buff0_thd4 [L853] 4 b$r_buff1_thd4 = b$w_buff0_used && b$r_buff0_thd4 || b$w_buff1_used && b$r_buff1_thd4 ? (_Bool)0 : b$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] [L856] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L858] 4 return 0; [L880] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t969={5:0}, t970={6:0}, t971={7:0}, t972={3:0}, weak$$choice2=0, x=2, y=1, z=1] [L882] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L882] RET 0 assume_abort_if_not(main$tmp_guard0) [L884] 0 b = b$w_buff0_used && b$r_buff0_thd0 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd0 ? b$w_buff1 : b) [L885] 0 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd0 ? (_Bool)0 : b$w_buff0_used [L886] 0 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd0 || b$w_buff1_used && b$r_buff1_thd0 ? (_Bool)0 : b$w_buff1_used [L887] 0 b$r_buff0_thd0 = b$w_buff0_used && b$r_buff0_thd0 ? (_Bool)0 : b$r_buff0_thd0 [L888] 0 b$r_buff1_thd0 = b$w_buff0_used && b$r_buff0_thd0 || b$w_buff1_used && b$r_buff1_thd0 ? (_Bool)0 : b$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t969={5:0}, t970={6:0}, t971={7:0}, t972={3:0}, weak$$choice2=0, x=2, y=1, z=1] [L891] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L893] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix037_power.oepc_pso.oepc_rmo.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=2, y=1, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 874]: 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: 878]: 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: 872]: 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: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 190 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 21.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 869 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 869 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 204 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1871 IncrementalHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 95 mSDtfsCounter, 1871 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6448occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 3744 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 1808 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 [2023-11-19 04:49:12,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/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_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ --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 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:14,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:14,788 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:49:14,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:14,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:14,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:14,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:14,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:14,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:14,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:14,829 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:14,830 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:14,830 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:14,831 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:14,832 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:14,832 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:14,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:49:14,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:49:14,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:14,835 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:49:14,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:49:14,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:49:14,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:14,837 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:49:14,837 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:49:14,838 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:49:14,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:14,839 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:49:14,839 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:49:14,840 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:49:14,840 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:49:14,840 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:49:14,841 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:14,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:14,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:49:14,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:14,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:14,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:14,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:14,843 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:49:14,843 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:49:14,844 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:14,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:14,844 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_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f [2023-11-19 04:49:15,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:15,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:15,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:15,280 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:15,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:15,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 04:49:18,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:18,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:18,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 04:49:18,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data/50d17525b/2153e4883e8e4cb7a07ea1b8b322f878/FLAGd61c522f7 [2023-11-19 04:49:18,823 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/data/50d17525b/2153e4883e8e4cb7a07ea1b8b322f878 [2023-11-19 04:49:18,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:18,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:18,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:18,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:18,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:18,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:18" (1/1) ... [2023-11-19 04:49:18,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81684cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:18, skipping insertion in model container [2023-11-19 04:49:18,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:18" (1/1) ... [2023-11-19 04:49:18,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:19,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:19,454 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:49:19,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:19,554 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:19,554 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:19,562 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:49:19,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19 WrapperNode [2023-11-19 04:49:19,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:19,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:19,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:49:19,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:49:19,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,649 INFO L138 Inliner]: procedures = 180, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-19 04:49:19,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:19,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:49:19,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:49:19,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:49:19,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:49:19,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:49:19,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:49:19,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:49:19,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (1/1) ... [2023-11-19 04:49:19,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:19,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:19,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:49:19,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2287f5fe-b870-4bb6-aaeb-949bb68fef3e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:49:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:49:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:49:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:49:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:49:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:49:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:49:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 04:49:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 04:49:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:49:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:49:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:49:19,890 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:49:20,101 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:49:20,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:49:20,592 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:49:20,728 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:49:20,729 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:49:20,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:20 BoogieIcfgContainer [2023-11-19 04:49:20,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:49:20,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:49:20,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:49:20,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:49:20,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:49:18" (1/3) ... [2023-11-19 04:49:20,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0245a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:20, skipping insertion in model container [2023-11-19 04:49:20,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:19" (2/3) ... [2023-11-19 04:49:20,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0245a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:20, skipping insertion in model container [2023-11-19 04:49:20,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:20" (3/3) ... [2023-11-19 04:49:20,751 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2023-11-19 04:49:20,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:49:20,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 04:49:20,772 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:49:20,918 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:49:20,968 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:49:20,982 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 155 transitions, 326 flow [2023-11-19 04:49:20,985 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 155 transitions, 326 flow [2023-11-19 04:49:20,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 326 flow [2023-11-19 04:49:21,063 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2023-11-19 04:49:21,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:49:21,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 151 events. 4/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2023-11-19 04:49:21,080 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380