./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_sync.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_sync.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:03:24,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:03:24,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:03:24,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:03:24,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:03:24,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:03:24,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:03:24,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:03:24,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:03:24,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:03:24,973 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:03:24,974 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:03:24,974 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:03:24,975 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:03:24,975 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:03:24,976 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:03:24,976 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:03:24,977 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:03:24,977 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:03:24,978 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:03:24,978 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:03:24,979 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:03:24,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:03:24,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:03:24,981 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:03:24,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:03:24,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:03:24,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:03:24,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:03:24,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:03:24,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:03:24,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:03:24,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:03:24,993 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:03:24,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:03:24,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:03:24,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:03:24,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:03:24,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:03:24,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:03:24,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:03:24,997 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:03:24,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:03:24,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:03:24,998 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:03:24,998 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:03:24,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:03:24,999 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_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef [2023-11-25 00:03:25,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:03:25,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:03:25,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:03:25,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:03:25,394 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:03:25,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/seq-pthread/cs_sync.i [2023-11-25 00:03:28,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:03:29,126 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:03:29,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/sv-benchmarks/c/seq-pthread/cs_sync.i [2023-11-25 00:03:29,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/data/90e72ea66/d5e8e9de39ff4d6e9f3a3817f2075f38/FLAGd7e155415 [2023-11-25 00:03:29,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/data/90e72ea66/d5e8e9de39ff4d6e9f3a3817f2075f38 [2023-11-25 00:03:29,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:03:29,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:03:29,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:03:29,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:03:29,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:03:29,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:03:29" (1/1) ... [2023-11-25 00:03:29,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584e22c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:29, skipping insertion in model container [2023-11-25 00:03:29,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:03:29" (1/1) ... [2023-11-25 00:03:29,285 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:03:29,934 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2023-11-25 00:03:30,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:03:30,095 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:03:30,139 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2023-11-25 00:03:30,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:03:30,366 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:03:30,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30 WrapperNode [2023-11-25 00:03:30,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:03:30,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:03:30,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:03:30,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:03:30,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,487 INFO L138 Inliner]: procedures = 245, calls = 244, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 551 [2023-11-25 00:03:30,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:03:30,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:03:30,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:03:30,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:03:30,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:03:30,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:03:30,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:03:30,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:03:30,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (1/1) ... [2023-11-25 00:03:30,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:03:30,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:30,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:03:30,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:03:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:03:30,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:03:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:03:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2023-11-25 00:03:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2023-11-25 00:03:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-25 00:03:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-25 00:03:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:03:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:03:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:03:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-25 00:03:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-25 00:03:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:03:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2023-11-25 00:03:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2023-11-25 00:03:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:03:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:03:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:03:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-25 00:03:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-25 00:03:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2023-11-25 00:03:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2023-11-25 00:03:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-25 00:03:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-25 00:03:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-25 00:03:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-25 00:03:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-25 00:03:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-25 00:03:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:03:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:03:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:03:30,988 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:03:30,991 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:03:31,517 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-25 00:03:31,518 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-25 00:03:31,518 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-25 00:03:31,518 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-25 00:03:31,519 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L991: SUMMARY for call __CS_cs(); srcloc: null [2023-11-25 00:03:31,519 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-25 00:03:31,519 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-25 00:03:32,189 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:03:32,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:03:32,451 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-25 00:03:32,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:32 BoogieIcfgContainer [2023-11-25 00:03:32,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:03:32,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:03:32,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:03:32,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:03:32,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:03:29" (1/3) ... [2023-11-25 00:03:32,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319aa33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:03:32, skipping insertion in model container [2023-11-25 00:03:32,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:30" (2/3) ... [2023-11-25 00:03:32,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319aa33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:03:32, skipping insertion in model container [2023-11-25 00:03:32,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:32" (3/3) ... [2023-11-25 00:03:32,465 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_sync.i [2023-11-25 00:03:32,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:03:32,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:03:32,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:03:32,562 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6cc99171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:03:32,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:03:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 94 states have internal predecessors, (132), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-25 00:03:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-25 00:03:32,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:32,603 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:32,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:03:32,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:32,611 INFO L85 PathProgramCache]: Analyzing trace with hash 643413204, now seen corresponding path program 1 times [2023-11-25 00:03:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:32,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542246740] [2023-11-25 00:03:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:03:33,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:33,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542246740] [2023-11-25 00:03:33,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542246740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:33,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:33,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:33,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117768578] [2023-11-25 00:03:33,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:33,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:33,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:33,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:33,458 INFO L87 Difference]: Start difference. First operand has 160 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 94 states have internal predecessors, (132), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:03:35,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:03:37,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:03:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:37,721 INFO L93 Difference]: Finished difference Result 319 states and 486 transitions. [2023-11-25 00:03:37,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 50 [2023-11-25 00:03:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:37,736 INFO L225 Difference]: With dead ends: 319 [2023-11-25 00:03:37,737 INFO L226 Difference]: Without dead ends: 160 [2023-11-25 00:03:37,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:37,747 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 2 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:37,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 428 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-25 00:03:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-25 00:03:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2023-11-25 00:03:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 93 states have internal predecessors, (128), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-25 00:03:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2023-11-25 00:03:37,814 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 50 [2023-11-25 00:03:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:37,814 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2023-11-25 00:03:37,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:03:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2023-11-25 00:03:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-25 00:03:37,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:37,819 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:37,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:03:37,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:03:37,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1885798493, now seen corresponding path program 1 times [2023-11-25 00:03:37,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:37,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423884386] [2023-11-25 00:03:37,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:37,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:38,151 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:03:38,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:38,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423884386] [2023-11-25 00:03:38,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423884386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:38,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:38,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:38,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405533304] [2023-11-25 00:03:38,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:38,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:38,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:38,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:38,156 INFO L87 Difference]: Start difference. First operand 159 states and 238 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:03:40,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:03:42,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:03:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:42,388 INFO L93 Difference]: Finished difference Result 317 states and 476 transitions. [2023-11-25 00:03:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 52 [2023-11-25 00:03:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:42,392 INFO L225 Difference]: With dead ends: 317 [2023-11-25 00:03:42,392 INFO L226 Difference]: Without dead ends: 160 [2023-11-25 00:03:42,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:42,395 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:42,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-25 00:03:42,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-25 00:03:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-25 00:03:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.372340425531915) internal successors, (129), 94 states have internal predecessors, (129), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-25 00:03:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2023-11-25 00:03:42,420 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 52 [2023-11-25 00:03:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:42,421 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2023-11-25 00:03:42,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:03:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2023-11-25 00:03:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-25 00:03:42,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:42,424 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:42,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:03:42,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:03:42,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash -407190581, now seen corresponding path program 1 times [2023-11-25 00:03:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:42,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565326749] [2023-11-25 00:03:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:42,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:03:42,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565326749] [2023-11-25 00:03:42,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565326749] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:03:42,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412469197] [2023-11-25 00:03:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:42,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:42,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:42,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:03:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:43,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:43,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:03:43,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:03:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:03:43,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412469197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:03:43,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1483450968] [2023-11-25 00:03:43,296 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-25 00:03:43,297 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:03:43,301 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:03:43,307 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:03:43,308 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:04:08,937 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:04:12,689 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse5 (+ |c_~#m~0.offset| 1)) (.cse1 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse6 (+ |c_~#full~0.offset| 1)) (.cse17 (+ |c_~#empty~0.offset| 1)) (.cse3 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse8 (+ |c_~#num~0.offset| 4)) (.cse10 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse11 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse13 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse14 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse15 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse16 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12))) (and (exists ((v_~__CS_thread~0.base_40 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_40 0 |#funAddr~main_thread.base|))) (exists ((|v_#memory_$Pointer$.base_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_158| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_153| (Array Int (Array Int Int)))) (let ((.cse0 (select |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base|)) (.cse2 (select |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base| (store .cse0 .cse1 (select (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_status~0.base|) .cse1))) |v_#memory_$Pointer$.base_152|) (= (store |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_151|) (= (store |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base| (store .cse2 .cse3 (select .cse0 .cse3))) |v_#memory_$Pointer$.base_153|) (= (store |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base|) .cse4 (select .cse2 .cse4))) |v_#memory_$Pointer$.base_157|) (= |v_#memory_$Pointer$.base_154| (store |v_#memory_$Pointer$.base_155| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.base_155| |c_~#m~0.base|) .cse5 (select (select |v_#memory_$Pointer$.base_154| |c_~#m~0.base|) .cse5)))) (= |v_#memory_$Pointer$.base_150| (store |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|)))) (= (store |v_#memory_$Pointer$.base_156| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.base_156| |c_~#full~0.base|) .cse6 (select (select |v_#memory_$Pointer$.base_158| |c_~#full~0.base|) .cse6))) |v_#memory_$Pointer$.base_158|) (= (let ((.cse7 (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| (let ((.cse9 (let ((.cse12 (store (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base|) .cse15 (select (select |v_#memory_$Pointer$.base_152| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse16)))) (store .cse12 .cse13 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse12) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse14))))) (store .cse9 .cse10 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse9) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse11)))))) (store .cse7 |c_~#num~0.base| (store (select .cse7 |c_~#num~0.base|) .cse8 (select (select |v_#memory_$Pointer$.base_155| |c_~#num~0.base|) .cse8)))) |v_#memory_$Pointer$.base_155|) (= (store |v_#memory_$Pointer$.base_154| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.base_154| |c_~#empty~0.base|) .cse17 (select (select |v_#memory_$Pointer$.base_156| |c_~#empty~0.base|) .cse17))) |v_#memory_$Pointer$.base_156|)))) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem94#1|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_int_218| (Array Int (Array Int Int))) (|v_#memory_int_137| (Array Int (Array Int Int))) (|v_#memory_int_138| (Array Int (Array Int Int))) (|v_#memory_int_139| (Array Int (Array Int Int)))) (let ((.cse19 (select |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base|)) (.cse22 (select |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base|))) (and (= |v_#memory_int_138| (let ((.cse18 (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| (let ((.cse20 (let ((.cse21 (store (select |v_#memory_int_218| |c_~#__CS_thread_status~0.base|) .cse4 (select (select |v_#memory_int_218| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 3))))) (store .cse21 .cse3 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse21) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 4)))))) (store .cse20 .cse1 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse20) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 5))))))) (store .cse18 |c_~#__CS_thread_lockedon~0.base| (store (select .cse18 |c_~#__CS_thread_lockedon~0.base|) .cse15 (select .cse19 .cse15))))) (= (store |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base| (store .cse22 .cse10 (select (select |v_#memory_int_139| |c_~#__CS_thread_lockedon~0.base|) .cse10))) |v_#memory_int_139|) (= |c_#memory_int| (let ((.cse23 (let ((.cse24 (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (store |v_#memory_int_139| |c_~#num~0.base| (store (select |v_#memory_int_139| |c_~#num~0.base|) .cse8 (select (select |v_#memory_int_139| |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.offset| 4)))))) (store .cse28 |c_~#m~0.base| (store (select .cse28 |c_~#m~0.base|) .cse5 (select (select .cse28 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.offset| 1))))))) (store .cse27 |c_~#empty~0.base| (store (select .cse27 |c_~#empty~0.base|) .cse17 (select (select .cse27 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.offset| 1))))))) (store .cse26 |c_~#full~0.base| (store (select .cse26 |c_~#full~0.base|) .cse6 (select (select .cse26 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.offset| 1))))))) (store .cse25 |c_~#__CS_thread_born_round~0.base| (store (select .cse25 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse24 |c_~#__CS_thread_status~0.base| (store (select .cse24 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse23 |c_~#__CS_thread_allocated~0.base| (store (select .cse23 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1)))) (= (store |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base| (store .cse19 .cse13 (select .cse22 .cse13))) |v_#memory_int_137|)))) (exists ((|v_#memory_$Pointer$.offset_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_153| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_158| (Array Int (Array Int Int)))) (let ((.cse29 (select |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base|)) (.cse30 (select |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.offset_158| (store |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|)))) (= |v_#memory_$Pointer$.offset_150| (store |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base|) .cse4 (select .cse29 .cse4)))) (= (store |v_#memory_$Pointer$.offset_154| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.offset_154| |c_~#m~0.base|) .cse5 (select (select |v_#memory_$Pointer$.offset_153| |c_~#m~0.base|) .cse5))) |v_#memory_$Pointer$.offset_153|) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_157|) (= |v_#memory_$Pointer$.offset_155| (store |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base| (store .cse30 .cse1 (select (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_status~0.base|) .cse1)))) (= |v_#memory_$Pointer$.offset_151| (store |v_#memory_$Pointer$.offset_152| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.offset_152| |c_~#full~0.base|) .cse6 (select (select |v_#memory_$Pointer$.offset_151| |c_~#full~0.base|) .cse6)))) (= (store |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base|) .cse17 (select (select |v_#memory_$Pointer$.offset_152| |c_~#empty~0.base|) .cse17))) |v_#memory_$Pointer$.offset_152|) (= |v_#memory_$Pointer$.offset_156| (store |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base| (store .cse29 .cse3 (select .cse30 .cse3)))) (= |v_#memory_$Pointer$.offset_154| (let ((.cse31 (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| (let ((.cse32 (let ((.cse33 (store (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base|) .cse15 (select (select |v_#memory_$Pointer$.offset_155| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse16)))) (store .cse33 .cse13 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse33) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse14))))) (store .cse32 .cse10 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse32) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse11)))))) (store .cse31 |c_~#num~0.base| (store (select .cse31 |c_~#num~0.base|) .cse8 (select (select |v_#memory_$Pointer$.offset_154| |c_~#num~0.base|) .cse8)))))))) (exists ((v_~__CS_thread~0.offset_40 (Array Int Int))) (= (store v_~__CS_thread~0.offset_40 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) (= c_~__CS_round~0 0) (= c_~__CS_thread_index~0 0))) is different from false [2023-11-25 00:04:12,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1483450968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:04:12,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:04:12,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 8 [2023-11-25 00:04:12,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984423310] [2023-11-25 00:04:12,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:04:12,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:04:12,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:04:12,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:04:12,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2023-11-25 00:04:12,701 INFO L87 Difference]: Start difference. First operand 160 states and 239 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:04:14,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-25 00:04:16,825 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse22 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse23 (+ |c_~#m~0.offset| 1)) (.cse19 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse24 (+ |c_~#full~0.offset| 1)) (.cse35 (+ |c_~#empty~0.offset| 1)) (.cse21 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse26 (+ |c_~#num~0.offset| 4)) (.cse28 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse29 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse31 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse32 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse33 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse34 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12)) (.cse16 (= c_~__CS_round~0 0)) (.cse17 (= c_~__CS_thread_index~0 0))) (and (or (< 2 |c_ULTIMATE.start_main_~j~2#1|) (let ((.cse2 (select |c_#memory_int| 9)) (.cse7 (select |c_#memory_int| 4)) (.cse8 (select |c_#memory_int| 7)) (.cse10 (select |c_#memory_int| 1)) (.cse6 (select |c_#memory_int| 3)) (.cse3 (select |c_#memory_int| 10)) (.cse9 (select |c_#memory_$Pointer$.base| 6)) (.cse1 (select |c_#memory_int| 5)) (.cse5 (select |c_#memory_$Pointer$.offset| 6)) (.cse4 (+ |c_#StackHeapBarrier| 1)) (.cse0 (select |c_#memory_int| 8))) (and (= |c_~#m~0.offset| 0) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet130#1_7| Int) (v_~__CS_u~0.full_8 (Array Int Int))) (= (store (store v_~__CS_u~0.full_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet130#1_7|) 1 (select c_~__CS_u~0.full 1)) c_~__CS_u~0.full)) (= (select .cse0 1) 0) (exists ((v_~__CS_thread~0.base_39 (Array Int Int))) (= (store (store (store v_~__CS_thread~0.base_39 0 0) 1 0) 2 0) c_~__CS_thread~0.base)) (= (select .cse1 2) 0) (= (select .cse1 5) 0) (= (select .cse2 1) 0) (= 2 c_~__THREAD_FINISHED~0) (= |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.offset| 0) (= |c_~#__CS_thread_born_round~0.offset| 0) (= |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.offset| 0) (= |c_~#full~0.base| 10) (= c_~__CS_ret_FINISHED~0 4) (= 5 |c_~#__CS_thread_status~0.base|) (= (select .cse3 1) 0) (= 6 |c_~#__CS_thread_lockedon~0.base|) (= |c_~#empty~0.offset| 0) (exists ((|v_#length_22| (Array Int Int))) (and (= 10 (select |v_#length_22| 2)) (= (select |v_#length_22| 3) 3) (= (select |v_#length_22| 5) 6) (= (select |v_#length_22| 1) 2) (= 2 (select |v_#length_22| 9)) (= 3 (select |v_#length_22| 4)) (= (store (store (store (store (store (store |v_#length_22| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 6) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 24) |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base| 8) |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base| 2) |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base| 2) |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base| 2) |c_#length|) (= 2 (select |v_#length_22| 10)) (= 8 (select |v_#length_22| 7)) (= (select |v_#length_22| 6) 24) (= 2 (select |v_#length_22| 8)))) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (= 2 c_~__CS_ret_ERROR~0) (= (select .cse2 0) 0) (= 0 (select .cse5 16)) (= (select .cse6 0) 0) (= (select .cse7 0) 0) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) (= c_~__CS_ret~0 0) (<= 1 |c_#StackHeapBarrier|) (= (select .cse8 0) 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (select .cse9 12) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.offset| 0) (= |c_~#__CS_thread_born_round~0.base| 4) (= |c_~#num~0.offset| 0) (= (select .cse6 1) 0) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) (exists ((v_~__CS_u~0.num_8 (Array Int Int))) (= c_~__CS_u~0.num (store (store v_~__CS_u~0.num_8 0 0) 1 0))) (= (select .cse1 4) 0) (exists ((v_~__CS_u~0.m_8 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet126#1_7| Int)) (= c_~__CS_u~0.m (store (store v_~__CS_u~0.m_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet126#1_7|) 1 (select c_~__CS_u~0.m 1)))) (= 3 |c_~#__CS_thread_allocated~0.base|) (= (select .cse10 1) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.offset| 0) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) (= (select .cse9 0) 0) (= (select .cse1 3) 0) (= (select .cse9 4) 0) (= (select .cse7 1) 0) (= c_~__CS_error~0 0) (= c_~__THREAD_UNUSED~0 0) (= (select .cse5 12) 0) (= (select .cse7 2) 0) (= (select .cse8 4) 0) (= (select .cse5 4) 0) (= (select .cse1 0) 0) (= |c_~#full~0.offset| 0) (= |c_~#empty~0.base| 9) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) (= (select .cse5 20) 0) (= (select .cse9 16) 0) (= 1 c_~__THREAD_RUNNING~0) (= |c_~#__CS_thread_status~0.offset| 0) (exists ((|v_#valid_85| (Array Int Int))) (let ((.cse11 (store |v_#valid_85| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 1))) (let ((.cse12 (store .cse11 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 1))) (let ((.cse15 (store .cse12 |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base| 1))) (let ((.cse14 (store .cse15 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base| 1))) (let ((.cse13 (store .cse14 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base| 1))) (and (= (select |v_#valid_85| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0) (= (select .cse11 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0) (= (select |v_#valid_85| 5) 1) (= (select |v_#valid_85| 8) 1) (= (select |v_#valid_85| 1) 1) (= (select |v_#valid_85| 4) 1) (= (select .cse12 |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) 0) (= (select |v_#valid_85| 7) 1) (= (select |v_#valid_85| 9) 1) (= (select |v_#valid_85| 3) 1) (= (select |v_#valid_85| 2) 1) (= (select |v_#valid_85| 10) 1) (= (select |v_#valid_85| 6) 1) (= (select .cse13 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) 0) (= (select |v_#valid_85| 0) 0) (= (select .cse14 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) 0) (= (select .cse15 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) 0) (= |c_#valid| (store .cse13 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base| 1))))))))) (= 48 (select .cse10 0)) (= 0 (select .cse9 20)) (= (select .cse6 2) 0) (= (select .cse3 0) 0) (= (select .cse9 8) 0) (= (select .cse5 0) 0) (= (select .cse1 1) 0) (= (select .cse5 8) 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 0) .cse16 .cse17 (= |c_~#__CS_thread_allocated~0.offset| 0) (exists ((v_~__CS_u~0.empty_8 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet128#1_7| Int)) (= (store (store v_~__CS_u~0.empty_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet128#1_7|) 1 (select c_~__CS_u~0.empty 1)) c_~__CS_u~0.empty)) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) (= 7 |c_~#num~0.base|) (= |c_~#m~0.base| 8) (= c_~__CS_ret_PREEMPTED~0 1) (exists ((v_~__CS_thread~0.offset_39 (Array Int Int))) (= (store (store (store v_~__CS_thread~0.offset_39 0 0) 1 0) 2 0) c_~__CS_thread~0.offset)) (= |c_~#__CS_thread_lockedon~0.offset| 0) (= (select .cse0 0) 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 0)))) (exists ((v_~__CS_thread~0.base_40 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_40 0 |#funAddr~main_thread.base|))) (exists ((|v_#memory_$Pointer$.base_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_158| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_153| (Array Int (Array Int Int)))) (let ((.cse18 (select |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base|)) (.cse20 (select |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base| (store .cse18 .cse19 (select (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_status~0.base|) .cse19))) |v_#memory_$Pointer$.base_152|) (= (store |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_151|) (= (store |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base| (store .cse20 .cse21 (select .cse18 .cse21))) |v_#memory_$Pointer$.base_153|) (= (store |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base|) .cse22 (select .cse20 .cse22))) |v_#memory_$Pointer$.base_157|) (= |v_#memory_$Pointer$.base_154| (store |v_#memory_$Pointer$.base_155| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.base_155| |c_~#m~0.base|) .cse23 (select (select |v_#memory_$Pointer$.base_154| |c_~#m~0.base|) .cse23)))) (= |v_#memory_$Pointer$.base_150| (store |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|)))) (= (store |v_#memory_$Pointer$.base_156| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.base_156| |c_~#full~0.base|) .cse24 (select (select |v_#memory_$Pointer$.base_158| |c_~#full~0.base|) .cse24))) |v_#memory_$Pointer$.base_158|) (= (let ((.cse25 (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| (let ((.cse27 (let ((.cse30 (store (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base|) .cse33 (select (select |v_#memory_$Pointer$.base_152| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse34)))) (store .cse30 .cse31 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse30) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse32))))) (store .cse27 .cse28 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse27) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse29)))))) (store .cse25 |c_~#num~0.base| (store (select .cse25 |c_~#num~0.base|) .cse26 (select (select |v_#memory_$Pointer$.base_155| |c_~#num~0.base|) .cse26)))) |v_#memory_$Pointer$.base_155|) (= (store |v_#memory_$Pointer$.base_154| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.base_154| |c_~#empty~0.base|) .cse35 (select (select |v_#memory_$Pointer$.base_156| |c_~#empty~0.base|) .cse35))) |v_#memory_$Pointer$.base_156|)))) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem94#1|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_int_218| (Array Int (Array Int Int))) (|v_#memory_int_137| (Array Int (Array Int Int))) (|v_#memory_int_138| (Array Int (Array Int Int))) (|v_#memory_int_139| (Array Int (Array Int Int)))) (let ((.cse37 (select |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base|)) (.cse40 (select |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base|))) (and (= |v_#memory_int_138| (let ((.cse36 (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| (let ((.cse38 (let ((.cse39 (store (select |v_#memory_int_218| |c_~#__CS_thread_status~0.base|) .cse22 (select (select |v_#memory_int_218| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 3))))) (store .cse39 .cse21 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse39) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 4)))))) (store .cse38 .cse19 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse38) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 5))))))) (store .cse36 |c_~#__CS_thread_lockedon~0.base| (store (select .cse36 |c_~#__CS_thread_lockedon~0.base|) .cse33 (select .cse37 .cse33))))) (= (store |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base| (store .cse40 .cse28 (select (select |v_#memory_int_139| |c_~#__CS_thread_lockedon~0.base|) .cse28))) |v_#memory_int_139|) (= |c_#memory_int| (let ((.cse41 (let ((.cse42 (let ((.cse43 (let ((.cse44 (let ((.cse45 (let ((.cse46 (store |v_#memory_int_139| |c_~#num~0.base| (store (select |v_#memory_int_139| |c_~#num~0.base|) .cse26 (select (select |v_#memory_int_139| |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.offset| 4)))))) (store .cse46 |c_~#m~0.base| (store (select .cse46 |c_~#m~0.base|) .cse23 (select (select .cse46 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.offset| 1))))))) (store .cse45 |c_~#empty~0.base| (store (select .cse45 |c_~#empty~0.base|) .cse35 (select (select .cse45 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.offset| 1))))))) (store .cse44 |c_~#full~0.base| (store (select .cse44 |c_~#full~0.base|) .cse24 (select (select .cse44 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.offset| 1))))))) (store .cse43 |c_~#__CS_thread_born_round~0.base| (store (select .cse43 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse42 |c_~#__CS_thread_status~0.base| (store (select .cse42 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse41 |c_~#__CS_thread_allocated~0.base| (store (select .cse41 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1)))) (= (store |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base| (store .cse37 .cse31 (select .cse40 .cse31))) |v_#memory_int_137|)))) (exists ((|v_#memory_$Pointer$.offset_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_153| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_158| (Array Int (Array Int Int)))) (let ((.cse47 (select |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base|)) (.cse48 (select |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.offset_158| (store |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|)))) (= |v_#memory_$Pointer$.offset_150| (store |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base|) .cse22 (select .cse47 .cse22)))) (= (store |v_#memory_$Pointer$.offset_154| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.offset_154| |c_~#m~0.base|) .cse23 (select (select |v_#memory_$Pointer$.offset_153| |c_~#m~0.base|) .cse23))) |v_#memory_$Pointer$.offset_153|) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_157|) (= |v_#memory_$Pointer$.offset_155| (store |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base| (store .cse48 .cse19 (select (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_status~0.base|) .cse19)))) (= |v_#memory_$Pointer$.offset_151| (store |v_#memory_$Pointer$.offset_152| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.offset_152| |c_~#full~0.base|) .cse24 (select (select |v_#memory_$Pointer$.offset_151| |c_~#full~0.base|) .cse24)))) (= (store |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base|) .cse35 (select (select |v_#memory_$Pointer$.offset_152| |c_~#empty~0.base|) .cse35))) |v_#memory_$Pointer$.offset_152|) (= |v_#memory_$Pointer$.offset_156| (store |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base| (store .cse47 .cse21 (select .cse48 .cse21)))) (= |v_#memory_$Pointer$.offset_154| (let ((.cse49 (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| (let ((.cse50 (let ((.cse51 (store (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base|) .cse33 (select (select |v_#memory_$Pointer$.offset_155| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse34)))) (store .cse51 .cse31 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse51) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse32))))) (store .cse50 .cse28 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse50) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse29)))))) (store .cse49 |c_~#num~0.base| (store (select .cse49 |c_~#num~0.base|) .cse26 (select (select |v_#memory_$Pointer$.offset_154| |c_~#num~0.base|) .cse26)))))))) (exists ((v_~__CS_thread~0.offset_40 (Array Int Int))) (= (store v_~__CS_thread~0.offset_40 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) .cse16 .cse17)) is different from false [2023-11-25 00:04:17,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:04:17,731 INFO L93 Difference]: Finished difference Result 312 states and 466 transitions. [2023-11-25 00:04:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:04:17,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 53 [2023-11-25 00:04:17,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:04:17,735 INFO L225 Difference]: With dead ends: 312 [2023-11-25 00:04:17,735 INFO L226 Difference]: Without dead ends: 160 [2023-11-25 00:04:17,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=21, Invalid=27, Unknown=2, NotChecked=22, Total=72 [2023-11-25 00:04:17,738 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:04:17,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 1 Unknown, 67 Unchecked, 3.0s Time] [2023-11-25 00:04:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-25 00:04:17,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-25 00:04:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-25 00:04:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2023-11-25 00:04:17,765 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 53 [2023-11-25 00:04:17,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:04:17,766 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2023-11-25 00:04:17,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:04:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2023-11-25 00:04:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-25 00:04:17,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:17,770 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:17,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:04:17,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:04:17,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:04:17,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1102802374, now seen corresponding path program 1 times [2023-11-25 00:04:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:04:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910942351] [2023-11-25 00:04:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:17,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:04:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-25 00:04:18,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:04:18,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910942351] [2023-11-25 00:04:18,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910942351] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:04:18,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914009759] [2023-11-25 00:04:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:18,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:04:18,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:18,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:04:18,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf427fdf-2a66-4f3a-abba-fb66f67dc2e5/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:04:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:18,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:04:18,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:04:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-25 00:04:18,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:04:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-25 00:04:18,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914009759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:04:18,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [676868941] [2023-11-25 00:04:18,763 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2023-11-25 00:04:18,763 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:04:18,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:04:18,764 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:04:18,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs