./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:54:26,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:54:26,528 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-21 19:54:26,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:54:26,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:54:26,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:54:26,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:54:26,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:54:26,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:54:26,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:54:26,566 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:54:26,567 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:54:26,567 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:54:26,568 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:54:26,569 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:54:26,569 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:54:26,570 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:54:26,571 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:54:26,571 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:54:26,572 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:54:26,573 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:54:26,574 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:54:26,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:54:26,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:54:26,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:54:26,577 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:54:26,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:54:26,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:54:26,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:54:26,579 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:54:26,580 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:54:26,581 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 19:54:26,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:54:26,582 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:54:26,582 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:54:26,583 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:54:26,583 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:54:26,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:54:26,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:54:26,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:54:26,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:26,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:54:26,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:54:26,585 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:54:26,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:54:26,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:54:26,586 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:54:26,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:54:26,587 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_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 [2023-11-21 19:54:26,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:54:26,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:54:26,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:54:26,883 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:54:26,883 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:54:26,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2023-11-21 19:54:29,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:54:30,350 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:54:30,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2023-11-21 19:54:30,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data/58cc529a5/86762e9586a044f7aaf29dcbc6e06037/FLAGacdb6f63a [2023-11-21 19:54:30,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data/58cc529a5/86762e9586a044f7aaf29dcbc6e06037 [2023-11-21 19:54:30,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:54:30,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:54:30,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:30,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:54:30,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:54:30,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:30" (1/1) ... [2023-11-21 19:54:30,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c40da5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:30, skipping insertion in model container [2023-11-21 19:54:30,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:30" (1/1) ... [2023-11-21 19:54:30,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:54:30,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:30,921 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:54:31,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:31,099 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:31,099 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:31,108 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:54:31,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31 WrapperNode [2023-11-21 19:54:31,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:31,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:31,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:54:31,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:54:31,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,171 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-21 19:54:31,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:31,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:54:31,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:54:31,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:54:31,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:54:31,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:54:31,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:54:31,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:54:31,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (1/1) ... [2023-11-21 19:54:31,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:31,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:54:31,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:54:31,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:54:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:54:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 19:54:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:54:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:54:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:54:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 19:54:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 19:54:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 19:54:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 19:54:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 19:54:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 19:54:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:54:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 19:54:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:54:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:54:31,321 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:54:31,489 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:54:31,491 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:54:31,992 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:54:32,273 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:54:32,275 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:54:32,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:32 BoogieIcfgContainer [2023-11-21 19:54:32,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:54:32,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:54:32,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:54:32,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:54:32,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:54:30" (1/3) ... [2023-11-21 19:54:32,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22af119c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:32, skipping insertion in model container [2023-11-21 19:54:32,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:31" (2/3) ... [2023-11-21 19:54:32,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22af119c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:32, skipping insertion in model container [2023-11-21 19:54:32,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:32" (3/3) ... [2023-11-21 19:54:32,294 INFO L112 eAbstractionObserver]: Analyzing ICFG mix028_power.opt_pso.opt_rmo.opt.i [2023-11-21 19:54:32,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:54:32,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-21 19:54:32,317 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:54:32,388 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 19:54:32,428 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 54 transitions, 120 flow [2023-11-21 19:54:32,905 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6760 states, 6747 states have (on average 3.6279828071735585) internal successors, (24478), 6759 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:32,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:54:32,936 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;@4002883c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:54:32,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-21 19:54:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 6760 states, 6747 states have (on average 3.6279828071735585) internal successors, (24478), 6759 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 19:54:32,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:32,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 19:54:32,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:32,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:32,997 INFO L85 PathProgramCache]: Analyzing trace with hash 12310, now seen corresponding path program 1 times [2023-11-21 19:54:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:33,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044450527] [2023-11-21 19:54:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:33,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:33,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:33,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044450527] [2023-11-21 19:54:33,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044450527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:33,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:33,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:54:33,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484651666] [2023-11-21 19:54:33,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:33,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:33,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:33,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:33,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:33,443 INFO L87 Difference]: Start difference. First operand has 6760 states, 6747 states have (on average 3.6279828071735585) internal successors, (24478), 6759 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:33,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:33,772 INFO L93 Difference]: Finished difference Result 6311 states and 21965 transitions. [2023-11-21 19:54:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:33,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-21 19:54:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:33,876 INFO L225 Difference]: With dead ends: 6311 [2023-11-21 19:54:33,876 INFO L226 Difference]: Without dead ends: 6311 [2023-11-21 19:54:33,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:33,881 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:33,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 31 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2023-11-21 19:54:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 6311. [2023-11-21 19:54:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 6299 states have (on average 3.4870614383235434) internal successors, (21965), 6310 states have internal predecessors, (21965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 21965 transitions. [2023-11-21 19:54:34,346 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 21965 transitions. Word has length 2 [2023-11-21 19:54:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:34,347 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 21965 transitions. [2023-11-21 19:54:34,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 21965 transitions. [2023-11-21 19:54:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 19:54:34,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:34,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 19:54:34,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:54:34,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:34,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash 12311, now seen corresponding path program 1 times [2023-11-21 19:54:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:34,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335021800] [2023-11-21 19:54:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:34,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:34,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:34,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335021800] [2023-11-21 19:54:34,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335021800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:34,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:34,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:54:34,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939748901] [2023-11-21 19:54:34,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:34,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:34,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:34,550 INFO L87 Difference]: Start difference. First operand 6311 states and 21965 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:34,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:34,843 INFO L93 Difference]: Finished difference Result 6310 states and 21964 transitions. [2023-11-21 19:54:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:34,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-21 19:54:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:34,916 INFO L225 Difference]: With dead ends: 6310 [2023-11-21 19:54:34,916 INFO L226 Difference]: Without dead ends: 6310 [2023-11-21 19:54:34,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:34,923 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:34,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 32 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6310 states. [2023-11-21 19:54:35,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6310 to 6310. [2023-11-21 19:54:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 6299 states have (on average 3.48690268296555) internal successors, (21964), 6309 states have internal predecessors, (21964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 21964 transitions. [2023-11-21 19:54:35,351 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 21964 transitions. Word has length 2 [2023-11-21 19:54:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:35,352 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 21964 transitions. [2023-11-21 19:54:35,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 21964 transitions. [2023-11-21 19:54:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 19:54:35,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:35,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 19:54:35,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:54:35,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:35,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash 367103361, now seen corresponding path program 1 times [2023-11-21 19:54:35,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:35,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168162874] [2023-11-21 19:54:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:35,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:35,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168162874] [2023-11-21 19:54:35,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168162874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:35,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:35,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:35,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697701983] [2023-11-21 19:54:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:35,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:35,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:35,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:35,414 INFO L87 Difference]: Start difference. First operand 6310 states and 21964 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:35,634 INFO L93 Difference]: Finished difference Result 6303 states and 21951 transitions. [2023-11-21 19:54:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 19:54:35,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:35,704 INFO L225 Difference]: With dead ends: 6303 [2023-11-21 19:54:35,705 INFO L226 Difference]: Without dead ends: 6303 [2023-11-21 19:54:35,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:35,714 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 37 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:35,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 35 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2023-11-21 19:54:36,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6303. [2023-11-21 19:54:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6303 states, 6293 states have (on average 3.4881614492293025) internal successors, (21951), 6302 states have internal predecessors, (21951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:36,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 21951 transitions. [2023-11-21 19:54:36,074 INFO L78 Accepts]: Start accepts. Automaton has 6303 states and 21951 transitions. Word has length 5 [2023-11-21 19:54:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:36,075 INFO L495 AbstractCegarLoop]: Abstraction has 6303 states and 21951 transitions. [2023-11-21 19:54:36,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states and 21951 transitions. [2023-11-21 19:54:36,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 19:54:36,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:36,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 19:54:36,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:54:36,078 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:36,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:36,078 INFO L85 PathProgramCache]: Analyzing trace with hash 367103362, now seen corresponding path program 1 times [2023-11-21 19:54:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:36,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455110951] [2023-11-21 19:54:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:36,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:36,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:36,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455110951] [2023-11-21 19:54:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455110951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:36,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:36,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:36,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360630743] [2023-11-21 19:54:36,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:36,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:36,209 INFO L87 Difference]: Start difference. First operand 6303 states and 21951 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:36,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:36,386 INFO L93 Difference]: Finished difference Result 6296 states and 21938 transitions. [2023-11-21 19:54:36,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:36,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 19:54:36,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:36,581 INFO L225 Difference]: With dead ends: 6296 [2023-11-21 19:54:36,604 INFO L226 Difference]: Without dead ends: 6296 [2023-11-21 19:54:36,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:36,611 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:36,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 36 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:36,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2023-11-21 19:54:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 6296. [2023-11-21 19:54:36,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 6287 states have (on average 3.489422618100843) internal successors, (21938), 6295 states have internal predecessors, (21938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 21938 transitions. [2023-11-21 19:54:36,957 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 21938 transitions. Word has length 5 [2023-11-21 19:54:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:36,957 INFO L495 AbstractCegarLoop]: Abstraction has 6296 states and 21938 transitions. [2023-11-21 19:54:36,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 21938 transitions. [2023-11-21 19:54:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:54:36,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:36,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:36,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:54:36,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:36,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1389865626, now seen corresponding path program 1 times [2023-11-21 19:54:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:36,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768287536] [2023-11-21 19:54:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:37,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:37,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768287536] [2023-11-21 19:54:37,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768287536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:37,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:37,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:37,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18442351] [2023-11-21 19:54:37,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:37,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:37,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:37,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:37,065 INFO L87 Difference]: Start difference. First operand 6296 states and 21938 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:37,266 INFO L93 Difference]: Finished difference Result 6240 states and 21785 transitions. [2023-11-21 19:54:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:37,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:54:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:37,307 INFO L225 Difference]: With dead ends: 6240 [2023-11-21 19:54:37,308 INFO L226 Difference]: Without dead ends: 6240 [2023-11-21 19:54:37,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:37,309 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:37,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 38 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6240 states. [2023-11-21 19:54:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6240 to 6240. [2023-11-21 19:54:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6240 states, 6233 states have (on average 3.495106690197337) internal successors, (21785), 6239 states have internal predecessors, (21785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6240 states to 6240 states and 21785 transitions. [2023-11-21 19:54:37,643 INFO L78 Accepts]: Start accepts. Automaton has 6240 states and 21785 transitions. Word has length 8 [2023-11-21 19:54:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:37,644 INFO L495 AbstractCegarLoop]: Abstraction has 6240 states and 21785 transitions. [2023-11-21 19:54:37,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6240 states and 21785 transitions. [2023-11-21 19:54:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:54:37,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:37,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:37,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:54:37,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:37,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1389865627, now seen corresponding path program 1 times [2023-11-21 19:54:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:37,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706716554] [2023-11-21 19:54:37,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:37,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:37,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:37,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706716554] [2023-11-21 19:54:37,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706716554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:37,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:37,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:54:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521199664] [2023-11-21 19:54:37,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:37,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:37,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:37,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:37,783 INFO L87 Difference]: Start difference. First operand 6240 states and 21785 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:37,997 INFO L93 Difference]: Finished difference Result 6184 states and 21632 transitions. [2023-11-21 19:54:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:37,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:54:37,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:38,040 INFO L225 Difference]: With dead ends: 6184 [2023-11-21 19:54:38,040 INFO L226 Difference]: Without dead ends: 6184 [2023-11-21 19:54:38,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:38,041 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:38,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 39 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6184 states. [2023-11-21 19:54:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6184 to 6184. [2023-11-21 19:54:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 6179 states have (on average 3.500890111668555) internal successors, (21632), 6183 states have internal predecessors, (21632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 21632 transitions. [2023-11-21 19:54:38,326 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 21632 transitions. Word has length 8 [2023-11-21 19:54:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:38,326 INFO L495 AbstractCegarLoop]: Abstraction has 6184 states and 21632 transitions. [2023-11-21 19:54:38,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 21632 transitions. [2023-11-21 19:54:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:54:38,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:38,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:38,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 19:54:38,328 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:38,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:38,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1389866809, now seen corresponding path program 1 times [2023-11-21 19:54:38,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:38,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584107154] [2023-11-21 19:54:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:38,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:38,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584107154] [2023-11-21 19:54:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584107154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:38,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:38,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:54:38,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854139755] [2023-11-21 19:54:38,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:38,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:38,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:38,555 INFO L87 Difference]: Start difference. First operand 6184 states and 21632 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:38,673 INFO L93 Difference]: Finished difference Result 5379 states and 18702 transitions. [2023-11-21 19:54:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:38,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:54:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:38,701 INFO L225 Difference]: With dead ends: 5379 [2023-11-21 19:54:38,702 INFO L226 Difference]: Without dead ends: 5267 [2023-11-21 19:54:38,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:38,703 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:38,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:38,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2023-11-21 19:54:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5267. [2023-11-21 19:54:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5265 states have (on average 3.48338081671415) internal successors, (18340), 5266 states have internal predecessors, (18340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 18340 transitions. [2023-11-21 19:54:38,887 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 18340 transitions. Word has length 8 [2023-11-21 19:54:38,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:38,887 INFO L495 AbstractCegarLoop]: Abstraction has 5267 states and 18340 transitions. [2023-11-21 19:54:38,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 18340 transitions. [2023-11-21 19:54:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 19:54:38,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:38,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:38,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 19:54:38,901 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:38,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1000306724, now seen corresponding path program 1 times [2023-11-21 19:54:38,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:38,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477158218] [2023-11-21 19:54:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:38,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:39,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:39,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477158218] [2023-11-21 19:54:39,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477158218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:39,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:39,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:54:39,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476927390] [2023-11-21 19:54:39,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:39,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 19:54:39,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:39,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 19:54:39,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 19:54:39,630 INFO L87 Difference]: Start difference. First operand 5267 states and 18340 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2023-11-21 19:54:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:39,861 INFO L93 Difference]: Finished difference Result 4875 states and 16933 transitions. [2023-11-21 19:54:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:54:39,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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 [2023-11-21 19:54:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:39,883 INFO L225 Difference]: With dead ends: 4875 [2023-11-21 19:54:39,883 INFO L226 Difference]: Without dead ends: 4091 [2023-11-21 19:54:39,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 19:54:39,885 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 77 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:39,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 156 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:54:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2023-11-21 19:54:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 4091. [2023-11-21 19:54:40,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 4090 states have (on average 3.452078239608802) internal successors, (14119), 4090 states have internal predecessors, (14119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 14119 transitions. [2023-11-21 19:54:40,018 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 14119 transitions. Word has length 18 [2023-11-21 19:54:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:40,018 INFO L495 AbstractCegarLoop]: Abstraction has 4091 states and 14119 transitions. [2023-11-21 19:54:40,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2023-11-21 19:54:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 14119 transitions. [2023-11-21 19:54:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 19:54:40,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:40,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:40,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 19:54:40,023 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:40,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1000307943, now seen corresponding path program 1 times [2023-11-21 19:54:40,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:40,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252448562] [2023-11-21 19:54:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:40,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:40,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:40,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252448562] [2023-11-21 19:54:40,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252448562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:40,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:40,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:54:40,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727148222] [2023-11-21 19:54:40,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:40,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:54:40,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:40,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:54:40,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:54:40,682 INFO L87 Difference]: Start difference. First operand 4091 states and 14119 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2023-11-21 19:54:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:41,262 INFO L93 Difference]: Finished difference Result 4560 states and 15424 transitions. [2023-11-21 19:54:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 19:54:41,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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 [2023-11-21 19:54:41,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:41,281 INFO L225 Difference]: With dead ends: 4560 [2023-11-21 19:54:41,281 INFO L226 Difference]: Without dead ends: 3706 [2023-11-21 19:54:41,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-21 19:54:41,284 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 112 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:41,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 150 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:54:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2023-11-21 19:54:41,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3391. [2023-11-21 19:54:41,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3391 states, 3390 states have (on average 3.387020648967552) internal successors, (11482), 3390 states have internal predecessors, (11482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:41,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3391 states to 3391 states and 11482 transitions. [2023-11-21 19:54:41,406 INFO L78 Accepts]: Start accepts. Automaton has 3391 states and 11482 transitions. Word has length 18 [2023-11-21 19:54:41,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:41,407 INFO L495 AbstractCegarLoop]: Abstraction has 3391 states and 11482 transitions. [2023-11-21 19:54:41,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2023-11-21 19:54:41,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3391 states and 11482 transitions. [2023-11-21 19:54:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 19:54:41,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:41,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:41,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 19:54:41,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:41,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:41,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2047998788, now seen corresponding path program 1 times [2023-11-21 19:54:41,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:41,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222945124] [2023-11-21 19:54:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:41,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:42,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:42,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222945124] [2023-11-21 19:54:42,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222945124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:42,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:42,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:54:42,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428682599] [2023-11-21 19:54:42,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:42,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:54:42,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:42,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:54:42,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:54:42,175 INFO L87 Difference]: Start difference. First operand 3391 states and 11482 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) [2023-11-21 19:54:42,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:42,481 INFO L93 Difference]: Finished difference Result 3531 states and 11749 transitions. [2023-11-21 19:54:42,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 19:54:42,482 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 [2023-11-21 19:54:42,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:42,499 INFO L225 Difference]: With dead ends: 3531 [2023-11-21 19:54:42,500 INFO L226 Difference]: Without dead ends: 3041 [2023-11-21 19:54:42,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 19:54:42,501 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 72 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:42,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 109 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:54:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2023-11-21 19:54:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 3041. [2023-11-21 19:54:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3040 states have (on average 3.355921052631579) internal successors, (10202), 3040 states have internal predecessors, (10202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 10202 transitions. [2023-11-21 19:54:42,644 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 10202 transitions. Word has length 21 [2023-11-21 19:54:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:42,644 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 10202 transitions. [2023-11-21 19:54:42,645 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) [2023-11-21 19:54:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 10202 transitions. [2023-11-21 19:54:42,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 19:54:42,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:42,654 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] [2023-11-21 19:54:42,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 19:54:42,655 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:42,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:42,655 INFO L85 PathProgramCache]: Analyzing trace with hash -489892582, now seen corresponding path program 1 times [2023-11-21 19:54:42,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:42,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043181799] [2023-11-21 19:54:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:42,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:43,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:43,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043181799] [2023-11-21 19:54:43,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043181799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:43,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:43,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:54:43,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127518410] [2023-11-21 19:54:43,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:43,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 19:54:43,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:43,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 19:54:43,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:54:43,464 INFO L87 Difference]: Start difference. First operand 3041 states and 10202 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:43,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:43,880 INFO L93 Difference]: Finished difference Result 3824 states and 12652 transitions. [2023-11-21 19:54:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:54:43,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-11-21 19:54:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:43,899 INFO L225 Difference]: With dead ends: 3824 [2023-11-21 19:54:43,899 INFO L226 Difference]: Without dead ends: 3366 [2023-11-21 19:54:43,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-21 19:54:43,900 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 90 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:43,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 168 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:54:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2023-11-21 19:54:44,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3307. [2023-11-21 19:54:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 3306 states have (on average 3.3463399879007865) internal successors, (11063), 3306 states have internal predecessors, (11063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 11063 transitions. [2023-11-21 19:54:44,049 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 11063 transitions. Word has length 23 [2023-11-21 19:54:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:44,050 INFO L495 AbstractCegarLoop]: Abstraction has 3307 states and 11063 transitions. [2023-11-21 19:54:44,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 11063 transitions. [2023-11-21 19:54:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 19:54:44,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:44,064 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] [2023-11-21 19:54:44,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 19:54:44,065 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:44,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2046108633, now seen corresponding path program 1 times [2023-11-21 19:54:44,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:44,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164692999] [2023-11-21 19:54:44,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:44,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:44,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164692999] [2023-11-21 19:54:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164692999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:44,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:44,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:54:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392175515] [2023-11-21 19:54:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:44,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:54:44,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:44,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:54:44,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:54:44,381 INFO L87 Difference]: Start difference. First operand 3307 states and 11063 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 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) [2023-11-21 19:54:44,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:44,524 INFO L93 Difference]: Finished difference Result 3115 states and 9811 transitions. [2023-11-21 19:54:44,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:54:44,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 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 [2023-11-21 19:54:44,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:44,544 INFO L225 Difference]: With dead ends: 3115 [2023-11-21 19:54:44,544 INFO L226 Difference]: Without dead ends: 2651 [2023-11-21 19:54:44,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:54:44,546 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 58 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:44,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 41 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:44,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2023-11-21 19:54:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2651. [2023-11-21 19:54:44,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2651 states, 2650 states have (on average 3.1849056603773587) internal successors, (8440), 2650 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 8440 transitions. [2023-11-21 19:54:44,655 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 8440 transitions. Word has length 25 [2023-11-21 19:54:44,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:44,655 INFO L495 AbstractCegarLoop]: Abstraction has 2651 states and 8440 transitions. [2023-11-21 19:54:44,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 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) [2023-11-21 19:54:44,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 8440 transitions. [2023-11-21 19:54:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 19:54:44,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:44,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:44,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 19:54:44,667 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:44,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:44,668 INFO L85 PathProgramCache]: Analyzing trace with hash -833079450, now seen corresponding path program 1 times [2023-11-21 19:54:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:44,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332214256] [2023-11-21 19:54:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:44,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:44,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332214256] [2023-11-21 19:54:44,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332214256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:44,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:44,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:54:44,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283572326] [2023-11-21 19:54:44,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:44,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:54:44,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:44,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:54:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:54:44,940 INFO L87 Difference]: Start difference. First operand 2651 states and 8440 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:45,107 INFO L93 Difference]: Finished difference Result 1911 states and 5728 transitions. [2023-11-21 19:54:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:54:45,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-21 19:54:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:45,115 INFO L225 Difference]: With dead ends: 1911 [2023-11-21 19:54:45,115 INFO L226 Difference]: Without dead ends: 1617 [2023-11-21 19:54:45,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:54:45,116 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 110 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:45,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 51 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2023-11-21 19:54:45,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1491. [2023-11-21 19:54:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1490 states have (on average 2.975167785234899) internal successors, (4433), 1490 states have internal predecessors, (4433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 4433 transitions. [2023-11-21 19:54:45,176 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 4433 transitions. Word has length 26 [2023-11-21 19:54:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:45,177 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 4433 transitions. [2023-11-21 19:54:45,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 4433 transitions. [2023-11-21 19:54:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 19:54:45,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:45,183 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] [2023-11-21 19:54:45,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 19:54:45,184 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:45,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:45,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1769840865, now seen corresponding path program 1 times [2023-11-21 19:54:45,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:45,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522476565] [2023-11-21 19:54:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:45,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:45,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522476565] [2023-11-21 19:54:45,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522476565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:45,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:45,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:54:45,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441668132] [2023-11-21 19:54:45,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:45,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:54:45,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:45,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:54:45,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:54:45,815 INFO L87 Difference]: Start difference. First operand 1491 states and 4433 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 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) [2023-11-21 19:54:46,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:46,071 INFO L93 Difference]: Finished difference Result 2159 states and 6361 transitions. [2023-11-21 19:54:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:54:46,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 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 [2023-11-21 19:54:46,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:46,078 INFO L225 Difference]: With dead ends: 2159 [2023-11-21 19:54:46,078 INFO L226 Difference]: Without dead ends: 1451 [2023-11-21 19:54:46,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 19:54:46,079 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 78 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:46,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 128 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:54:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2023-11-21 19:54:46,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1371. [2023-11-21 19:54:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1370 states have (on average 2.894160583941606) internal successors, (3965), 1370 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 3965 transitions. [2023-11-21 19:54:46,130 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 3965 transitions. Word has length 29 [2023-11-21 19:54:46,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:46,130 INFO L495 AbstractCegarLoop]: Abstraction has 1371 states and 3965 transitions. [2023-11-21 19:54:46,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 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) [2023-11-21 19:54:46,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 3965 transitions. [2023-11-21 19:54:46,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 19:54:46,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:46,136 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] [2023-11-21 19:54:46,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 19:54:46,136 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:46,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:46,137 INFO L85 PathProgramCache]: Analyzing trace with hash 261948147, now seen corresponding path program 2 times [2023-11-21 19:54:46,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:46,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671802212] [2023-11-21 19:54:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:46,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:46,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:46,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671802212] [2023-11-21 19:54:46,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671802212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:46,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:46,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:54:46,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402295764] [2023-11-21 19:54:46,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:46,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:54:46,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:54:46,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:54:46,423 INFO L87 Difference]: Start difference. First operand 1371 states and 3965 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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) [2023-11-21 19:54:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:46,575 INFO L93 Difference]: Finished difference Result 1047 states and 2989 transitions. [2023-11-21 19:54:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:54:46,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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 [2023-11-21 19:54:46,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:46,579 INFO L225 Difference]: With dead ends: 1047 [2023-11-21 19:54:46,579 INFO L226 Difference]: Without dead ends: 767 [2023-11-21 19:54:46,579 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 [2023-11-21 19:54:46,580 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 150 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:46,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 37 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:46,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-11-21 19:54:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2023-11-21 19:54:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 766 states have (on average 2.842036553524804) internal successors, (2177), 766 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 2177 transitions. [2023-11-21 19:54:46,605 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 2177 transitions. Word has length 29 [2023-11-21 19:54:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:46,606 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 2177 transitions. [2023-11-21 19:54:46,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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) [2023-11-21 19:54:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 2177 transitions. [2023-11-21 19:54:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 19:54:46,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:46,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:46,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 19:54:46,610 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:46,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash -514327410, now seen corresponding path program 1 times [2023-11-21 19:54:46,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:46,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635140629] [2023-11-21 19:54:46,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:46,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:46,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635140629] [2023-11-21 19:54:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635140629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:46,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:46,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:54:46,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811605946] [2023-11-21 19:54:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:46,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:54:46,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:54:46,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:54:46,972 INFO L87 Difference]: Start difference. First operand 767 states and 2177 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:47,178 INFO L93 Difference]: Finished difference Result 967 states and 2725 transitions. [2023-11-21 19:54:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:54:47,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-11-21 19:54:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:47,181 INFO L225 Difference]: With dead ends: 967 [2023-11-21 19:54:47,181 INFO L226 Difference]: Without dead ends: 427 [2023-11-21 19:54:47,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 19:54:47,182 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:47,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 127 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:54:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-21 19:54:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2023-11-21 19:54:47,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 2.692488262910798) internal successors, (1147), 426 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:47,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1147 transitions. [2023-11-21 19:54:47,203 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1147 transitions. Word has length 34 [2023-11-21 19:54:47,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:47,203 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 1147 transitions. [2023-11-21 19:54:47,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:47,204 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1147 transitions. [2023-11-21 19:54:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 19:54:47,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:47,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:47,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 19:54:47,207 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:47,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:47,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1457118644, now seen corresponding path program 2 times [2023-11-21 19:54:47,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:47,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485938263] [2023-11-21 19:54:47,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:54:47,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:54:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:54:47,415 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:54:47,415 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:54:47,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-21 19:54:47,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2023-11-21 19:54:47,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-21 19:54:47,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-21 19:54:47,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-21 19:54:47,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-21 19:54:47,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-21 19:54:47,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-21 19:54:47,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-11-21 19:54:47,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-21 19:54:47,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-21 19:54:47,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-21 19:54:47,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-21 19:54:47,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 19:54:47,429 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:47,436 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 19:54:47,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:54:47,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated [2023-11-21 19:54:47,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 19:54:47,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 19:54:47,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 19:54:47,564 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 19:54:47,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:54:47 BasicIcfg [2023-11-21 19:54:47,586 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:54:47,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:54:47,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:54:47,587 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:54:47,588 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:32" (3/4) ... [2023-11-21 19:54:47,591 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:54:47,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:54:47,593 INFO L158 Benchmark]: Toolchain (without parser) took 17196.14ms. Allocated memory was 130.0MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 83.9MB in the beginning and 881.1MB in the end (delta: -797.2MB). Peak memory consumption was 866.2MB. Max. memory is 16.1GB. [2023-11-21 19:54:47,594 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:54:47,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.88ms. Allocated memory is still 130.0MB. Free memory was 83.4MB in the beginning and 60.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 19:54:47,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.69ms. Allocated memory is still 130.0MB. Free memory was 60.1MB in the beginning and 57.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:54:47,596 INFO L158 Benchmark]: Boogie Preprocessor took 42.02ms. Allocated memory is still 130.0MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:54:47,596 INFO L158 Benchmark]: RCFGBuilder took 1063.91ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 55.0MB in the beginning and 110.0MB in the end (delta: -55.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-11-21 19:54:47,597 INFO L158 Benchmark]: TraceAbstraction took 15303.13ms. Allocated memory was 182.5MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 109.8MB in the beginning and 881.1MB in the end (delta: -771.3MB). Peak memory consumption was 838.3MB. Max. memory is 16.1GB. [2023-11-21 19:54:47,597 INFO L158 Benchmark]: Witness Printer took 5.53ms. Allocated memory is still 1.8GB. Free memory is still 881.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:54:47,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.88ms. Allocated memory is still 130.0MB. Free memory was 83.4MB in the beginning and 60.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.69ms. Allocated memory is still 130.0MB. Free memory was 60.1MB in the beginning and 57.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.02ms. Allocated memory is still 130.0MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1063.91ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 55.0MB in the beginning and 110.0MB in the end (delta: -55.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15303.13ms. Allocated memory was 182.5MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 109.8MB in the beginning and 881.1MB in the end (delta: -771.3MB). Peak memory consumption was 838.3MB. Max. memory is 16.1GB. * Witness Printer took 5.53ms. Allocated memory is still 1.8GB. Free memory is still 881.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L823] 0 pthread_t t748; [L824] FCALL, FORK 0 pthread_create(&t748, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t748={5:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L825] 0 pthread_t t749; [L826] FCALL, FORK 0 pthread_create(&t749, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t748={5:0}, t749={6:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L827] 0 pthread_t t750; [L763] 2 x$w_buff1 = x$w_buff0 [L764] 2 x$w_buff0 = 2 [L765] 2 x$w_buff1_used = x$w_buff0_used [L766] 2 x$w_buff0_used = (_Bool)1 [L767] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L767] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L768] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L769] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L770] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L771] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L772] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L828] FCALL, FORK 0 pthread_create(&t750, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t748={5:0}, t749={6:0}, t750={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=0] [L792] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L795] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L798] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L801] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L802] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L803] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L804] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L805] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L746] 1 x = 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L749] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L750] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L751] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L752] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L753] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={5:0}, t749={6:0}, t750={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L832] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L832] RET 0 assume_abort_if_not(main$tmp_guard0) [L834] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L835] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L836] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L837] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L838] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={5:0}, t749={6:0}, t750={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 x$flush_delayed = weak$$choice2 [L844] 0 x$mem_tmp = x [L845] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L846] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L847] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L848] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L849] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L851] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L853] 0 x = x$flush_delayed ? x$mem_tmp : x [L854] 0 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={5:0}, t749={6:0}, t750={3:0}, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L856] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L17] 0 __assert_fail ("0", "mix028_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, 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: 821]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 826]: 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: 828]: 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: 824]: 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 7 procedures, 79 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1031 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1031 mSDsluCounter, 1215 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 783 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1362 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 432 mSDtfsCounter, 1362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6760occurred in iteration=0, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 580 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 295 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 1939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 19:54:47,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:54:50,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:54:50,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-21 19:54:50,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:54:50,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:54:50,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:54:50,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:54:50,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:54:50,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:54:50,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:54:50,694 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:54:50,695 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:54:50,696 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:54:50,696 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:54:50,697 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:54:50,697 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:54:50,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:54:50,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:54:50,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:54:50,700 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:54:50,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:54:50,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:54:50,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:54:50,702 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:54:50,702 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:54:50,703 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 19:54:50,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:54:50,704 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:54:50,704 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:54:50,705 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:54:50,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:54:50,706 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:54:50,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:54:50,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:54:50,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:54:50,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:54:50,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:54:50,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:50,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:54:50,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:54:50,711 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:54:50,711 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:54:50,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:54:50,712 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:54:50,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:54:50,712 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_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 [2023-11-21 19:54:51,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:54:51,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:54:51,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:54:51,194 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:54:51,195 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:54:51,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2023-11-21 19:54:54,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:54:54,702 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:54:54,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2023-11-21 19:54:54,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data/29b20bec8/bc43164985bc411fa33efc31fd2227ac/FLAG10ec3856d [2023-11-21 19:54:54,740 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/data/29b20bec8/bc43164985bc411fa33efc31fd2227ac [2023-11-21 19:54:54,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:54:54,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:54:54,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:54,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:54:54,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:54:54,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:54" (1/1) ... [2023-11-21 19:54:54,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4810104d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:54, skipping insertion in model container [2023-11-21 19:54:54,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:54" (1/1) ... [2023-11-21 19:54:54,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:54:55,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:55,483 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:54:55,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:55,669 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:55,669 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:55,677 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:54:55,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55 WrapperNode [2023-11-21 19:54:55,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:55,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:55,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:54:55,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:54:55,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,790 INFO L138 Inliner]: procedures = 179, calls = 57, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-21 19:54:55,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:55,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:54:55,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:54:55,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:54:55,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,839 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:54:55,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:54:55,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:54:55,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:54:55,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (1/1) ... [2023-11-21 19:54:55,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:55,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:54:55,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:54:55,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:54:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 19:54:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:54:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:54:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:54:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 19:54:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:54:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 19:54:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 19:54:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 19:54:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 19:54:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 19:54:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 19:54:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 19:54:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:54:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:54:55,961 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:54:56,141 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:54:56,143 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:54:56,639 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:54:56,966 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:54:56,966 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:54:56,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:56 BoogieIcfgContainer [2023-11-21 19:54:56,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:54:56,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:54:56,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:54:56,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:54:56,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:54:54" (1/3) ... [2023-11-21 19:54:56,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37384908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:56, skipping insertion in model container [2023-11-21 19:54:56,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:55" (2/3) ... [2023-11-21 19:54:56,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37384908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:56, skipping insertion in model container [2023-11-21 19:54:56,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:56" (3/3) ... [2023-11-21 19:54:56,981 INFO L112 eAbstractionObserver]: Analyzing ICFG mix028_power.opt_pso.opt_rmo.opt.i [2023-11-21 19:54:57,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:54:57,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-21 19:54:57,001 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:54:57,079 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 19:54:57,119 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 54 transitions, 120 flow [2023-11-21 19:54:57,561 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6760 states, 6747 states have (on average 3.6279828071735585) internal successors, (24478), 6759 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:57,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:54:57,591 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;@526863b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:54:57,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-21 19:54:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 6760 states, 6747 states have (on average 3.6279828071735585) internal successors, (24478), 6759 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:57,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 19:54:57,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:57,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 19:54:57,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:57,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:57,659 INFO L85 PathProgramCache]: Analyzing trace with hash 12374, now seen corresponding path program 1 times [2023-11-21 19:54:57,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:54:57,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184426721] [2023-11-21 19:54:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:57,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:54:57,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:54:57,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:54:57,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 19:54:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:57,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:54:57,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:54:57,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-21 19:54:57,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:57,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:54:57,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:54:57,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184426721] [2023-11-21 19:54:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184426721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:57,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:57,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:54:57,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168802250] [2023-11-21 19:54:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:57,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:57,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:54:57,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:57,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:57,977 INFO L87 Difference]: Start difference. First operand has 6760 states, 6747 states have (on average 3.6279828071735585) internal successors, (24478), 6759 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:58,319 INFO L93 Difference]: Finished difference Result 6311 states and 21965 transitions. [2023-11-21 19:54:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-21 19:54:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:58,421 INFO L225 Difference]: With dead ends: 6311 [2023-11-21 19:54:58,421 INFO L226 Difference]: Without dead ends: 6311 [2023-11-21 19:54:58,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:58,482 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:58,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 31 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:54:58,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2023-11-21 19:54:58,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 6311. [2023-11-21 19:54:59,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 6299 states have (on average 3.4870614383235434) internal successors, (21965), 6310 states have internal predecessors, (21965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:59,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 21965 transitions. [2023-11-21 19:54:59,165 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 21965 transitions. Word has length 2 [2023-11-21 19:54:59,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:59,178 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 21965 transitions. [2023-11-21 19:54:59,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 21965 transitions. [2023-11-21 19:54:59,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 19:54:59,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:59,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 19:54:59,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:54:59,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:54:59,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:54:59,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash 12375, now seen corresponding path program 1 times [2023-11-21 19:54:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:54:59,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698142801] [2023-11-21 19:54:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:59,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:54:59,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:54:59,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:54:59,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 19:54:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:59,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:54:59,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:54:59,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-21 19:54:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:54:59,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:54:59,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:54:59,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698142801] [2023-11-21 19:54:59,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698142801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:59,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:59,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:54:59,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858190172] [2023-11-21 19:54:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:59,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:54:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:59,536 INFO L87 Difference]: Start difference. First operand 6311 states and 21965 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:54:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:59,813 INFO L93 Difference]: Finished difference Result 6310 states and 21964 transitions. [2023-11-21 19:54:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:59,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-21 19:54:59,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:59,881 INFO L225 Difference]: With dead ends: 6310 [2023-11-21 19:54:59,881 INFO L226 Difference]: Without dead ends: 6310 [2023-11-21 19:54:59,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:59,883 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:59,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 32 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:54:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6310 states. [2023-11-21 19:55:00,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6310 to 6310. [2023-11-21 19:55:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 6299 states have (on average 3.48690268296555) internal successors, (21964), 6309 states have internal predecessors, (21964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 21964 transitions. [2023-11-21 19:55:00,427 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 21964 transitions. Word has length 2 [2023-11-21 19:55:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:00,428 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 21964 transitions. [2023-11-21 19:55:00,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 21964 transitions. [2023-11-21 19:55:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 19:55:00,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:00,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 19:55:00,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-21 19:55:00,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:00,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:00,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash 369013893, now seen corresponding path program 1 times [2023-11-21 19:55:00,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:00,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891500375] [2023-11-21 19:55:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:00,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:00,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:00,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:00,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-21 19:55:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:00,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:55:00,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:00,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-21 19:55:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:00,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:00,759 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:00,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891500375] [2023-11-21 19:55:00,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891500375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:00,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:00,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:55:00,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208880603] [2023-11-21 19:55:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:00,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:55:00,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:55:00,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:00,763 INFO L87 Difference]: Start difference. First operand 6310 states and 21964 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:01,005 INFO L93 Difference]: Finished difference Result 6303 states and 21951 transitions. [2023-11-21 19:55:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:55:01,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 19:55:01,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:01,097 INFO L225 Difference]: With dead ends: 6303 [2023-11-21 19:55:01,097 INFO L226 Difference]: Without dead ends: 6303 [2023-11-21 19:55:01,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:01,101 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 37 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:01,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 35 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:01,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2023-11-21 19:55:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6303. [2023-11-21 19:55:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6303 states, 6293 states have (on average 3.4881614492293025) internal successors, (21951), 6302 states have internal predecessors, (21951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 21951 transitions. [2023-11-21 19:55:01,555 INFO L78 Accepts]: Start accepts. Automaton has 6303 states and 21951 transitions. Word has length 5 [2023-11-21 19:55:01,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:01,555 INFO L495 AbstractCegarLoop]: Abstraction has 6303 states and 21951 transitions. [2023-11-21 19:55:01,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:01,556 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states and 21951 transitions. [2023-11-21 19:55:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 19:55:01,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:01,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 19:55:01,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:01,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:01,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:01,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:01,764 INFO L85 PathProgramCache]: Analyzing trace with hash 369013894, now seen corresponding path program 1 times [2023-11-21 19:55:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:01,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101780190] [2023-11-21 19:55:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:01,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:01,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:01,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:01,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-21 19:55:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:01,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:55:01,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:01,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-21 19:55:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:01,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:01,918 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:01,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101780190] [2023-11-21 19:55:01,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101780190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:01,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:01,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:55:01,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518292848] [2023-11-21 19:55:01,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:01,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:55:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:01,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:55:01,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:01,921 INFO L87 Difference]: Start difference. First operand 6303 states and 21951 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:02,255 INFO L93 Difference]: Finished difference Result 6296 states and 21938 transitions. [2023-11-21 19:55:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:55:02,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 19:55:02,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:02,318 INFO L225 Difference]: With dead ends: 6296 [2023-11-21 19:55:02,318 INFO L226 Difference]: Without dead ends: 6296 [2023-11-21 19:55:02,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:02,321 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:02,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 36 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2023-11-21 19:55:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 6296. [2023-11-21 19:55:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 6287 states have (on average 3.489422618100843) internal successors, (21938), 6295 states have internal predecessors, (21938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 21938 transitions. [2023-11-21 19:55:02,722 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 21938 transitions. Word has length 5 [2023-11-21 19:55:02,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:02,723 INFO L495 AbstractCegarLoop]: Abstraction has 6296 states and 21938 transitions. [2023-11-21 19:55:02,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 21938 transitions. [2023-11-21 19:55:02,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:55:02,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:02,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:02,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:02,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:02,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:02,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:02,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1823013798, now seen corresponding path program 1 times [2023-11-21 19:55:02,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:02,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536882813] [2023-11-21 19:55:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:02,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:02,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:02,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:02,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-21 19:55:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:03,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:55:03,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:03,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-21 19:55:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:03,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:03,084 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:03,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536882813] [2023-11-21 19:55:03,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536882813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:03,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:03,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:55:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753621788] [2023-11-21 19:55:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:03,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:55:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:55:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:03,089 INFO L87 Difference]: Start difference. First operand 6296 states and 21938 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:03,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:03,285 INFO L93 Difference]: Finished difference Result 6240 states and 21785 transitions. [2023-11-21 19:55:03,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:55:03,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:55:03,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:03,332 INFO L225 Difference]: With dead ends: 6240 [2023-11-21 19:55:03,332 INFO L226 Difference]: Without dead ends: 6240 [2023-11-21 19:55:03,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:03,334 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:03,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 38 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6240 states. [2023-11-21 19:55:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6240 to 6240. [2023-11-21 19:55:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6240 states, 6233 states have (on average 3.495106690197337) internal successors, (21785), 6239 states have internal predecessors, (21785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6240 states to 6240 states and 21785 transitions. [2023-11-21 19:55:03,773 INFO L78 Accepts]: Start accepts. Automaton has 6240 states and 21785 transitions. Word has length 8 [2023-11-21 19:55:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:03,774 INFO L495 AbstractCegarLoop]: Abstraction has 6240 states and 21785 transitions. [2023-11-21 19:55:03,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:03,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6240 states and 21785 transitions. [2023-11-21 19:55:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:55:03,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:03,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:03,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-21 19:55:03,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:03,979 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:03,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1823013797, now seen corresponding path program 1 times [2023-11-21 19:55:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917723518] [2023-11-21 19:55:03,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:03,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:04,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-21 19:55:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:04,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:55:04,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:04,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-21 19:55:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:04,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:04,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:04,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917723518] [2023-11-21 19:55:04,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917723518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:04,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:04,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:55:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125743752] [2023-11-21 19:55:04,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:04,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:55:04,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:55:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:04,162 INFO L87 Difference]: Start difference. First operand 6240 states and 21785 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:04,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:04,342 INFO L93 Difference]: Finished difference Result 6184 states and 21632 transitions. [2023-11-21 19:55:04,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:55:04,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:55:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:04,379 INFO L225 Difference]: With dead ends: 6184 [2023-11-21 19:55:04,379 INFO L226 Difference]: Without dead ends: 6184 [2023-11-21 19:55:04,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:04,380 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:04,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 39 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:04,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6184 states. [2023-11-21 19:55:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6184 to 6184. [2023-11-21 19:55:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 6179 states have (on average 3.500890111668555) internal successors, (21632), 6183 states have internal predecessors, (21632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:04,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 21632 transitions. [2023-11-21 19:55:04,747 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 21632 transitions. Word has length 8 [2023-11-21 19:55:04,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:04,747 INFO L495 AbstractCegarLoop]: Abstraction has 6184 states and 21632 transitions. [2023-11-21 19:55:04,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:04,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 21632 transitions. [2023-11-21 19:55:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:55:04,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:04,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:04,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-21 19:55:04,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:04,952 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:04,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1823012615, now seen corresponding path program 1 times [2023-11-21 19:55:04,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:04,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035974117] [2023-11-21 19:55:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:04,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:04,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:04,955 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:04,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-21 19:55:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:05,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:55:05,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:05,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:05,086 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:05,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035974117] [2023-11-21 19:55:05,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035974117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:05,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:05,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:55:05,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675362744] [2023-11-21 19:55:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:05,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:55:05,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:55:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:05,088 INFO L87 Difference]: Start difference. First operand 6184 states and 21632 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:05,196 INFO L93 Difference]: Finished difference Result 5379 states and 18702 transitions. [2023-11-21 19:55:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:55:05,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:55:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:05,224 INFO L225 Difference]: With dead ends: 5379 [2023-11-21 19:55:05,224 INFO L226 Difference]: Without dead ends: 5267 [2023-11-21 19:55:05,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:05,225 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:05,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2023-11-21 19:55:05,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5267. [2023-11-21 19:55:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5265 states have (on average 3.48338081671415) internal successors, (18340), 5266 states have internal predecessors, (18340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:05,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 18340 transitions. [2023-11-21 19:55:05,502 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 18340 transitions. Word has length 8 [2023-11-21 19:55:05,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:05,503 INFO L495 AbstractCegarLoop]: Abstraction has 5267 states and 18340 transitions. [2023-11-21 19:55:05,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:05,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 18340 transitions. [2023-11-21 19:55:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 19:55:05,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:05,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:05,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:05,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:05,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:05,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:05,725 INFO L85 PathProgramCache]: Analyzing trace with hash -736805208, now seen corresponding path program 1 times [2023-11-21 19:55:05,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:05,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373855456] [2023-11-21 19:55:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:05,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:05,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:05,730 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:05,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-21 19:55:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:05,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:55:05,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:05,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:05,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:05,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373855456] [2023-11-21 19:55:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373855456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:05,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:05,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:55:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770210698] [2023-11-21 19:55:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:05,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:55:05,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:55:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:55:05,921 INFO L87 Difference]: Start difference. First operand 5267 states and 18340 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2023-11-21 19:55:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:06,073 INFO L93 Difference]: Finished difference Result 4009 states and 12905 transitions. [2023-11-21 19:55:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:55:06,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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 [2023-11-21 19:55:06,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:06,092 INFO L225 Difference]: With dead ends: 4009 [2023-11-21 19:55:06,092 INFO L226 Difference]: Without dead ends: 3617 [2023-11-21 19:55:06,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:55:06,093 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 65 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:06,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2023-11-21 19:55:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 3617. [2023-11-21 19:55:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3615 states have (on average 3.247579529737206) internal successors, (11740), 3616 states have internal predecessors, (11740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 11740 transitions. [2023-11-21 19:55:06,212 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 11740 transitions. Word has length 18 [2023-11-21 19:55:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:06,212 INFO L495 AbstractCegarLoop]: Abstraction has 3617 states and 11740 transitions. [2023-11-21 19:55:06,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2023-11-21 19:55:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 11740 transitions. [2023-11-21 19:55:06,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 19:55:06,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:06,218 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] [2023-11-21 19:55:06,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:06,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:06,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:06,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:06,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2052942387, now seen corresponding path program 1 times [2023-11-21 19:55:06,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:06,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015380453] [2023-11-21 19:55:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:06,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:06,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:06,424 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:06,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-21 19:55:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:06,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:55:06,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:06,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:06,645 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:06,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015380453] [2023-11-21 19:55:06,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015380453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:06,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:06,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:55:06,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558013337] [2023-11-21 19:55:06,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:06,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:55:06,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:06,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:55:06,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:55:06,649 INFO L87 Difference]: Start difference. First operand 3617 states and 11740 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:06,890 INFO L93 Difference]: Finished difference Result 1989 states and 5930 transitions. [2023-11-21 19:55:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:06,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-11-21 19:55:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:06,898 INFO L225 Difference]: With dead ends: 1989 [2023-11-21 19:55:06,899 INFO L226 Difference]: Without dead ends: 1747 [2023-11-21 19:55:06,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:55:06,901 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 107 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:06,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 74 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:55:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2023-11-21 19:55:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1747. [2023-11-21 19:55:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1745 states have (on average 2.977077363896848) internal successors, (5195), 1746 states have internal predecessors, (5195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 5195 transitions. [2023-11-21 19:55:06,964 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 5195 transitions. Word has length 23 [2023-11-21 19:55:06,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:06,965 INFO L495 AbstractCegarLoop]: Abstraction has 1747 states and 5195 transitions. [2023-11-21 19:55:06,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 5195 transitions. [2023-11-21 19:55:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 19:55:06,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:06,971 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] [2023-11-21 19:55:06,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:07,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:07,175 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:07,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:07,175 INFO L85 PathProgramCache]: Analyzing trace with hash -363978230, now seen corresponding path program 1 times [2023-11-21 19:55:07,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:07,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773623228] [2023-11-21 19:55:07,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:07,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:07,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:07,181 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:07,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-21 19:55:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:07,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:55:07,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:07,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:07,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:07,443 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:07,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773623228] [2023-11-21 19:55:07,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773623228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:07,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:07,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:55:07,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461503805] [2023-11-21 19:55:07,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:07,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:55:07,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:07,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:55:07,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:55:07,447 INFO L87 Difference]: Start difference. First operand 1747 states and 5195 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:07,733 INFO L93 Difference]: Finished difference Result 1115 states and 3287 transitions. [2023-11-21 19:55:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:55:07,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-21 19:55:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:07,739 INFO L225 Difference]: With dead ends: 1115 [2023-11-21 19:55:07,739 INFO L226 Difference]: Without dead ends: 1043 [2023-11-21 19:55:07,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-21 19:55:07,741 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 127 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:07,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 119 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:55:07,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-11-21 19:55:07,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2023-11-21 19:55:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1041 states have (on average 2.9615754082612873) internal successors, (3083), 1042 states have internal predecessors, (3083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3083 transitions. [2023-11-21 19:55:07,780 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3083 transitions. Word has length 28 [2023-11-21 19:55:07,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:07,781 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 3083 transitions. [2023-11-21 19:55:07,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3083 transitions. [2023-11-21 19:55:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 19:55:07,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:07,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:07,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:07,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:07,991 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:07,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2080913305, now seen corresponding path program 1 times [2023-11-21 19:55:07,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:07,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550717442] [2023-11-21 19:55:07,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:07,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:07,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:07,995 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:08,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-21 19:55:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:08,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 19:55:08,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:08,976 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#t748~0#1.base_55| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#t749~0#1.base_47| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#t750~0#1.base_37| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t748~0#1.base_55| (_ bv1 1)))) (and (= (select .cse0 |v_ULTIMATE.start_main_~#t749~0#1.base_47|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t748~0#1.base_55|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#t748~0#1.base_55| (_ bv0 1)) |v_ULTIMATE.start_main_~#t749~0#1.base_47| (_ bv0 1)) |v_ULTIMATE.start_main_~#t750~0#1.base_37| (_ bv0 1)) |c_#valid|) (= (select (store .cse0 |v_ULTIMATE.start_main_~#t749~0#1.base_47| (_ bv1 1)) |v_ULTIMATE.start_main_~#t750~0#1.base_37|) (_ bv0 1))))) is different from true [2023-11-21 19:55:08,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:08,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:08,978 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:08,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550717442] [2023-11-21 19:55:08,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550717442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:08,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:08,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:55:08,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319287846] [2023-11-21 19:55:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:08,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:55:08,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:55:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-11-21 19:55:08,980 INFO L87 Difference]: Start difference. First operand 1043 states and 3083 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:09,259 INFO L93 Difference]: Finished difference Result 1049 states and 3088 transitions. [2023-11-21 19:55:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:55:09,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-11-21 19:55:09,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:09,264 INFO L225 Difference]: With dead ends: 1049 [2023-11-21 19:55:09,264 INFO L226 Difference]: Without dead ends: 1047 [2023-11-21 19:55:09,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-11-21 19:55:09,265 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 24 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:09,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 82 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 75 Unchecked, 0.3s Time] [2023-11-21 19:55:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-11-21 19:55:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2023-11-21 19:55:09,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1045 states have (on average 2.9502392344497608) internal successors, (3083), 1046 states have internal predecessors, (3083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 3083 transitions. [2023-11-21 19:55:09,306 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 3083 transitions. Word has length 34 [2023-11-21 19:55:09,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:09,308 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 3083 transitions. [2023-11-21 19:55:09,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:09,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 3083 transitions. [2023-11-21 19:55:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 19:55:09,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:09,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:09,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:09,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:09,521 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:09,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2080912086, now seen corresponding path program 1 times [2023-11-21 19:55:09,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:09,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438903350] [2023-11-21 19:55:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:09,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:09,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:09,523 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:09,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-21 19:55:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:09,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 19:55:09,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:10,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:10,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:10,069 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:10,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438903350] [2023-11-21 19:55:10,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438903350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:10,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:10,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:55:10,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016198946] [2023-11-21 19:55:10,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:10,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:55:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:10,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:55:10,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:55:10,072 INFO L87 Difference]: Start difference. First operand 1047 states and 3083 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:10,326 INFO L93 Difference]: Finished difference Result 1395 states and 4057 transitions. [2023-11-21 19:55:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:55:10,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-11-21 19:55:10,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:10,332 INFO L225 Difference]: With dead ends: 1395 [2023-11-21 19:55:10,332 INFO L226 Difference]: Without dead ends: 1388 [2023-11-21 19:55:10,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 19:55:10,333 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 56 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:10,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 139 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:55:10,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2023-11-21 19:55:10,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1360. [2023-11-21 19:55:10,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1358 states have (on average 2.9285714285714284) internal successors, (3977), 1359 states have internal predecessors, (3977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3977 transitions. [2023-11-21 19:55:10,384 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3977 transitions. Word has length 34 [2023-11-21 19:55:10,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:10,384 INFO L495 AbstractCegarLoop]: Abstraction has 1360 states and 3977 transitions. [2023-11-21 19:55:10,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:10,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3977 transitions. [2023-11-21 19:55:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 19:55:10,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:10,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:10,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:10,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:10,595 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:10,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:10,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1290971208, now seen corresponding path program 2 times [2023-11-21 19:55:10,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:10,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18072479] [2023-11-21 19:55:10,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 19:55:10,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:10,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:10,598 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:10,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-21 19:55:10,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 19:55:10,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:10,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:55:10,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:11,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:11,165 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:55:11,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18072479] [2023-11-21 19:55:11,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18072479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:11,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:55:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256722755] [2023-11-21 19:55:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:55:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:55:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:55:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:55:11,168 INFO L87 Difference]: Start difference. First operand 1360 states and 3977 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:11,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:55:11,340 INFO L93 Difference]: Finished difference Result 1957 states and 5653 transitions. [2023-11-21 19:55:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:11,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-11-21 19:55:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:55:11,349 INFO L225 Difference]: With dead ends: 1957 [2023-11-21 19:55:11,349 INFO L226 Difference]: Without dead ends: 1950 [2023-11-21 19:55:11,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:55:11,350 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:55:11,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 102 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:55:11,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2023-11-21 19:55:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1336. [2023-11-21 19:55:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 2.928785607196402) internal successors, (3907), 1335 states have internal predecessors, (3907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 3907 transitions. [2023-11-21 19:55:11,405 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 3907 transitions. Word has length 34 [2023-11-21 19:55:11,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:55:11,405 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 3907 transitions. [2023-11-21 19:55:11,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:55:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 3907 transitions. [2023-11-21 19:55:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 19:55:11,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:11,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:11,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:11,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:11,614 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-21 19:55:11,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:11,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1273748602, now seen corresponding path program 3 times [2023-11-21 19:55:11,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:55:11,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651709598] [2023-11-21 19:55:11,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 19:55:11,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:11,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:55:11,618 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 19:55:11,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-21 19:55:11,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-21 19:55:11,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-21 19:55:11,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:55:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:55:12,038 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-21 19:55:12,039 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:55:12,040 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-21 19:55:12,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2023-11-21 19:55:12,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-21 19:55:12,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-21 19:55:12,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-21 19:55:12,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-21 19:55:12,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-21 19:55:12,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-21 19:55:12,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-11-21 19:55:12,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-21 19:55:12,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-21 19:55:12,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-21 19:55:12,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-21 19:55:12,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:12,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b5b9e7-ca92-4da2-94a6-4205dbf3b234/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 19:55:12,258 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:55:12,263 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 19:55:12,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:55:12,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre3 could not be translated [2023-11-21 19:55:12,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 19:55:12,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 19:55:12,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 19:55:12,373 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-21 19:55:12,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:55:12 BasicIcfg [2023-11-21 19:55:12,390 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:55:12,391 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:55:12,391 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:55:12,391 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:55:12,391 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:56" (3/4) ... [2023-11-21 19:55:12,393 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:55:12,398 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:55:12,399 INFO L158 Benchmark]: Toolchain (without parser) took 17648.57ms. Allocated memory was 86.0MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 60.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 621.1MB. Max. memory is 16.1GB. [2023-11-21 19:55:12,400 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 61.8MB in the beginning and 61.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:55:12,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 924.28ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 58.1MB in the end (delta: 2.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-21 19:55:12,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.30ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 55.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:55:12,401 INFO L158 Benchmark]: Boogie Preprocessor took 73.40ms. Allocated memory is still 86.0MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:55:12,402 INFO L158 Benchmark]: RCFGBuilder took 1101.17ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 53.1MB in the beginning and 62.4MB in the end (delta: -9.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-21 19:55:12,403 INFO L158 Benchmark]: TraceAbstraction took 15419.03ms. Allocated memory was 104.9MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 61.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 599.9MB. Max. memory is 16.1GB. [2023-11-21 19:55:12,403 INFO L158 Benchmark]: Witness Printer took 7.87ms. Allocated memory is still 2.0GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:55:12,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 61.8MB in the beginning and 61.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 924.28ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 58.1MB in the end (delta: 2.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.30ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 55.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.40ms. Allocated memory is still 86.0MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1101.17ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 53.1MB in the beginning and 62.4MB in the end (delta: -9.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15419.03ms. Allocated memory was 104.9MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 61.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 599.9MB. Max. memory is 16.1GB. * Witness Printer took 7.87ms. Allocated memory is still 2.0GB. Free memory was 1.4GB in the beginning and 1.4GB 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~pre3 could not be translated - 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: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L823] 0 pthread_t t748; [L824] FCALL, FORK 0 pthread_create(&t748, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t748={7:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L825] 0 pthread_t t749; [L826] FCALL, FORK 0 pthread_create(&t749, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t748={7:0}, t749={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L827] 0 pthread_t t750; [L828] FCALL, FORK 0 pthread_create(&t750, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t748={7:0}, t749={3:0}, t750={11:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L763] 2 x$w_buff1 = x$w_buff0 [L764] 2 x$w_buff0 = 2 [L765] 2 x$w_buff1_used = x$w_buff0_used [L766] 2 x$w_buff0_used = (_Bool)1 [L767] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L767] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L768] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L769] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L770] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L771] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L772] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=0] [L792] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L795] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L798] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L801] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L802] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L803] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L804] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L805] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L746] 1 x = 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L749] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L750] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L751] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L752] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L753] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={7:0}, t749={3:0}, t750={11:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L832] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L832] RET 0 assume_abort_if_not(main$tmp_guard0) [L834] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L835] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L836] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L837] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L838] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={7:0}, t749={3:0}, t750={11:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 x$flush_delayed = weak$$choice2 [L844] 0 x$mem_tmp = x [L845] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L846] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L847] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L848] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L849] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L851] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L853] 0 x = x$flush_delayed ? x$mem_tmp : x [L854] 0 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={7:0}, t749={3:0}, t750={11:0}, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L856] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, z=1] [L17] 0 __assert_fail ("0", "mix028_power.opt_pso.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2, 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: 821]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 824]: 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: 826]: 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: 828]: 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