./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lazy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lazy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:27,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:27,603 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:02:27,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:27,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:27,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:27,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:27,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:27,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:27,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:27,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:27,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:27,644 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:27,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:27,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:27,646 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:27,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:27,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:27,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:27,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:27,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:27,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:27,650 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:02:27,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:27,651 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:27,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:27,652 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:27,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:27,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:27,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:27,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:27,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:27,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:27,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:27,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:27,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:27,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:27,682 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:27,682 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:27,683 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:27,683 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:27,683 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2023-11-19 08:02:28,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:28,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:28,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:28,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:28,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:28,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-pthread/cs_lazy.i [2023-11-19 08:02:31,126 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:31,481 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:31,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/sv-benchmarks/c/seq-pthread/cs_lazy.i [2023-11-19 08:02:31,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/data/0c19d2950/0fb65ba82f52480987c96fe211aefe56/FLAG2453ba328 [2023-11-19 08:02:31,517 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/data/0c19d2950/0fb65ba82f52480987c96fe211aefe56 [2023-11-19 08:02:31,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:31,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:31,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:31,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:31,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:31,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:31" (1/1) ... [2023-11-19 08:02:31,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1d7d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:31, skipping insertion in model container [2023-11-19 08:02:31,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:31" (1/1) ... [2023-11-19 08:02:31,620 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:32,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:32,221 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:32,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:32,405 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:32,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32 WrapperNode [2023-11-19 08:02:32,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:32,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:32,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:32,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:32,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,553 INFO L138 Inliner]: procedures = 145, calls = 213, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 530 [2023-11-19 08:02:32,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:32,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:32,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:32,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:32,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:32,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:32,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:32,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:32,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (1/1) ... [2023-11-19 08:02:32,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:32,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:32,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:32,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:02:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:02:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:02:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-19 08:02:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-19 08:02:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 08:02:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 08:02:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:02:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-19 08:02:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-19 08:02:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 08:02:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 08:02:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:02:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 08:02:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 08:02:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-19 08:02:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-19 08:02:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:33,062 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:33,065 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:33,587 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2023-11-19 08:02:33,587 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 08:02:33,587 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2023-11-19 08:02:33,588 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 08:02:33,588 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: SUMMARY for call __CS_cs(); srcloc: null [2023-11-19 08:02:33,588 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2023-11-19 08:02:33,588 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 08:02:35,414 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:35,430 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:35,431 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:02:35,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:35 BoogieIcfgContainer [2023-11-19 08:02:35,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:35,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:35,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:35,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:35,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:31" (1/3) ... [2023-11-19 08:02:35,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6d0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:35, skipping insertion in model container [2023-11-19 08:02:35,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32" (2/3) ... [2023-11-19 08:02:35,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6d0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:35, skipping insertion in model container [2023-11-19 08:02:35,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:35" (3/3) ... [2023-11-19 08:02:35,455 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lazy.i [2023-11-19 08:02:35,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:35,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 08:02:35,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:35,554 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=PETRI_NET, 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;@1466c6dd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:35,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 08:02:35,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 132 states have (on average 1.5606060606060606) internal successors, (206), 148 states have internal predecessors, (206), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-19 08:02:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 08:02:35,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:35,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:02:35,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:35,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash 280635441, now seen corresponding path program 1 times [2023-11-19 08:02:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:35,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392608717] [2023-11-19 08:02:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:35,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:36,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:36,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392608717] [2023-11-19 08:02:36,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392608717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:36,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:36,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681080500] [2023-11-19 08:02:36,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:36,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:36,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:36,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:36,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:36,167 INFO L87 Difference]: Start difference. First operand has 192 states, 132 states have (on average 1.5606060606060606) internal successors, (206), 148 states have internal predecessors, (206), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) 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) [2023-11-19 08:02:36,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:36,268 INFO L93 Difference]: Finished difference Result 376 states and 592 transitions. [2023-11-19 08:02:36,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:36,273 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 [2023-11-19 08:02:36,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:36,284 INFO L225 Difference]: With dead ends: 376 [2023-11-19 08:02:36,284 INFO L226 Difference]: Without dead ends: 156 [2023-11-19 08:02:36,294 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 [2023-11-19 08:02:36,298 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:36,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 497 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:02:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-19 08:02:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-11-19 08:02:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 105 states have (on average 1.457142857142857) internal successors, (153), 113 states have internal predecessors, (153), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 226 transitions. [2023-11-19 08:02:36,363 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 226 transitions. Word has length 5 [2023-11-19 08:02:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:36,364 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 226 transitions. [2023-11-19 08:02:36,364 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) [2023-11-19 08:02:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 226 transitions. [2023-11-19 08:02:36,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:02:36,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:36,366 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:36,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:02:36,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:36,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1890587857, now seen corresponding path program 1 times [2023-11-19 08:02:36,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359828545] [2023-11-19 08:02:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:36,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:36,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359828545] [2023-11-19 08:02:36,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359828545] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:36,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443548501] [2023-11-19 08:02:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:36,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:36,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:36,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:36,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:02:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:36,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:02:36,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:36,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:36,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443548501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:36,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:02:36,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 08:02:36,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433385119] [2023-11-19 08:02:36,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:36,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:36,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:36,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:36,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:36,815 INFO L87 Difference]: Start difference. First operand 156 states and 226 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2023-11-19 08:02:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:36,904 INFO L93 Difference]: Finished difference Result 156 states and 226 transitions. [2023-11-19 08:02:36,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:36,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2023-11-19 08:02:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:36,913 INFO L225 Difference]: With dead ends: 156 [2023-11-19 08:02:36,913 INFO L226 Difference]: Without dead ends: 155 [2023-11-19 08:02:36,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:36,915 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 5 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:36,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 431 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:02:36,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-19 08:02:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-19 08:02:36,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 112 states have internal predecessors, (152), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:36,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 225 transitions. [2023-11-19 08:02:36,941 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 225 transitions. Word has length 8 [2023-11-19 08:02:36,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:36,941 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 225 transitions. [2023-11-19 08:02:36,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2023-11-19 08:02:36,942 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 225 transitions. [2023-11-19 08:02:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:02:36,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:36,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:36,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:37,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:37,165 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:37,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1521317165, now seen corresponding path program 1 times [2023-11-19 08:02:37,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:37,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201360437] [2023-11-19 08:02:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:37,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:37,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201360437] [2023-11-19 08:02:37,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201360437] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:37,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173190584] [2023-11-19 08:02:37,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:37,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:37,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:37,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:37,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:02:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:37,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:37,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:37,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:37,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:37,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173190584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:37,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:02:37,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 08:02:37,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048954028] [2023-11-19 08:02:37,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:37,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:37,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:37,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:37,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:37,623 INFO L87 Difference]: Start difference. First operand 155 states and 225 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:39,641 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 [] [2023-11-19 08:02:39,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:39,695 INFO L93 Difference]: Finished difference Result 155 states and 225 transitions. [2023-11-19 08:02:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:39,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-11-19 08:02:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:39,699 INFO L225 Difference]: With dead ends: 155 [2023-11-19 08:02:39,699 INFO L226 Difference]: Without dead ends: 154 [2023-11-19 08:02:39,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:39,701 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 4 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:39,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 08:02:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-19 08:02:39,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-11-19 08:02:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 105 states have (on average 1.438095238095238) internal successors, (151), 111 states have internal predecessors, (151), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2023-11-19 08:02:39,737 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 9 [2023-11-19 08:02:39,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:39,738 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2023-11-19 08:02:39,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2023-11-19 08:02:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:02:39,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:39,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-19 08:02:39,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:39,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:39,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:39,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1521318894, now seen corresponding path program 1 times [2023-11-19 08:02:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:39,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831592089] [2023-11-19 08:02:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:39,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:40,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:40,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831592089] [2023-11-19 08:02:40,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831592089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:40,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:40,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:40,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120332313] [2023-11-19 08:02:40,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:40,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:40,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:40,056 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:40,096 INFO L93 Difference]: Finished difference Result 154 states and 224 transitions. [2023-11-19 08:02:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-11-19 08:02:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:40,101 INFO L225 Difference]: With dead ends: 154 [2023-11-19 08:02:40,102 INFO L226 Difference]: Without dead ends: 153 [2023-11-19 08:02:40,102 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 [2023-11-19 08:02:40,105 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:40,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 430 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:02:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-19 08:02:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2023-11-19 08:02:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 103 states have (on average 1.4368932038834952) internal successors, (148), 108 states have internal predecessors, (148), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 221 transitions. [2023-11-19 08:02:40,142 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 221 transitions. Word has length 9 [2023-11-19 08:02:40,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:40,142 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 221 transitions. [2023-11-19 08:02:40,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 221 transitions. [2023-11-19 08:02:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 08:02:40,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:40,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:40,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:02:40,144 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:40,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:40,145 INFO L85 PathProgramCache]: Analyzing trace with hash -83807815, now seen corresponding path program 1 times [2023-11-19 08:02:40,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:40,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936847231] [2023-11-19 08:02:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:40,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:40,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:40,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936847231] [2023-11-19 08:02:40,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936847231] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:40,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713353255] [2023-11-19 08:02:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:40,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:40,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:40,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:40,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:02:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:40,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:40,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:40,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:40,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713353255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:40,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:02:40,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 08:02:40,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620557258] [2023-11-19 08:02:40,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:40,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:40,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:40,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:40,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:40,503 INFO L87 Difference]: Start difference. First operand 151 states and 221 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:42,538 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 [] [2023-11-19 08:02:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:42,578 INFO L93 Difference]: Finished difference Result 300 states and 440 transitions. [2023-11-19 08:02:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:42,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2023-11-19 08:02:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:42,581 INFO L225 Difference]: With dead ends: 300 [2023-11-19 08:02:42,581 INFO L226 Difference]: Without dead ends: 159 [2023-11-19 08:02:42,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:42,584 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:42,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 08:02:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-19 08:02:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-19 08:02:42,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 111 states have (on average 1.4144144144144144) internal successors, (157), 116 states have internal predecessors, (157), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:42,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 230 transitions. [2023-11-19 08:02:42,600 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 230 transitions. Word has length 10 [2023-11-19 08:02:42,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:42,600 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 230 transitions. [2023-11-19 08:02:42,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:42,601 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 230 transitions. [2023-11-19 08:02:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 08:02:42,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:42,602 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-19 08:02:42,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:42,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:42,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:42,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1472374864, now seen corresponding path program 1 times [2023-11-19 08:02:42,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:42,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34549312] [2023-11-19 08:02:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:02:42,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:42,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34549312] [2023-11-19 08:02:42,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34549312] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:42,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545964602] [2023-11-19 08:02:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:42,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:42,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:42,925 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:42,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:02:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:43,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:43,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:43,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 08:02:43,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:43,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545964602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:43,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:02:43,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 08:02:43,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991183007] [2023-11-19 08:02:43,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:43,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:43,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:43,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:43,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:43,148 INFO L87 Difference]: Start difference. First operand 159 states and 230 transitions. Second operand has 3 states, 2 states have (on average 9.0) 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) [2023-11-19 08:02:45,172 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 [] [2023-11-19 08:02:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:45,180 INFO L93 Difference]: Finished difference Result 159 states and 230 transitions. [2023-11-19 08:02:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:45,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) 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 [2023-11-19 08:02:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:45,193 INFO L225 Difference]: With dead ends: 159 [2023-11-19 08:02:45,193 INFO L226 Difference]: Without dead ends: 158 [2023-11-19 08:02:45,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:45,194 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:45,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 08:02:45,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-19 08:02:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151. [2023-11-19 08:02:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 104 states have (on average 1.4230769230769231) internal successors, (148), 108 states have internal predecessors, (148), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:45,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 221 transitions. [2023-11-19 08:02:45,207 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 221 transitions. Word has length 18 [2023-11-19 08:02:45,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:45,208 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 221 transitions. [2023-11-19 08:02:45,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) 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) [2023-11-19 08:02:45,208 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 221 transitions. [2023-11-19 08:02:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 08:02:45,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:45,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:45,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:45,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:45,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:45,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1607074867, now seen corresponding path program 1 times [2023-11-19 08:02:45,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:45,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288019573] [2023-11-19 08:02:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:45,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 08:02:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:45,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:02:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:02:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:45,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:45,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288019573] [2023-11-19 08:02:45,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288019573] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:45,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899710146] [2023-11-19 08:02:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:45,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:45,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:02:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:46,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:02:46,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:46,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:46,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899710146] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:46,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:02:46,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-11-19 08:02:46,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194627924] [2023-11-19 08:02:46,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:46,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:02:46,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:46,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:02:46,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:02:46,150 INFO L87 Difference]: Start difference. First operand 151 states and 221 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 08:02:48,253 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 [] [2023-11-19 08:02:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:49,678 INFO L93 Difference]: Finished difference Result 314 states and 463 transitions. [2023-11-19 08:02:49,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:02:49,679 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 49 [2023-11-19 08:02:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:49,683 INFO L225 Difference]: With dead ends: 314 [2023-11-19 08:02:49,683 INFO L226 Difference]: Without dead ends: 166 [2023-11-19 08:02:49,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:02:49,685 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 68 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:49,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1011 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 08:02:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-19 08:02:49,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2023-11-19 08:02:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 113 states have (on average 1.3893805309734513) internal successors, (157), 117 states have internal predecessors, (157), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 230 transitions. [2023-11-19 08:02:49,706 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 230 transitions. Word has length 49 [2023-11-19 08:02:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:49,706 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 230 transitions. [2023-11-19 08:02:49,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 08:02:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 230 transitions. [2023-11-19 08:02:49,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 08:02:49,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:49,709 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:49,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-19 08:02:49,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 08:02:49,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:49,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1755517156, now seen corresponding path program 1 times [2023-11-19 08:02:49,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:49,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453127171] [2023-11-19 08:02:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:49,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 08:02:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:02:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:02:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 08:02:50,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:50,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453127171] [2023-11-19 08:02:50,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453127171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:50,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235542472] [2023-11-19 08:02:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:50,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:50,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:02:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:02:50,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 08:02:50,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 08:02:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235542472] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:50,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:02:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2023-11-19 08:02:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665944626] [2023-11-19 08:02:50,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:50,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:02:50,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:50,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:02:50,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:02:50,731 INFO L87 Difference]: Start difference. First operand 160 states and 230 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 08:02:52,798 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 [] [2023-11-19 08:02:55,551 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 [] [2023-11-19 08:02:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:56,290 INFO L93 Difference]: Finished difference Result 323 states and 469 transitions. [2023-11-19 08:02:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:02:56,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 60 [2023-11-19 08:02:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:56,293 INFO L225 Difference]: With dead ends: 323 [2023-11-19 08:02:56,293 INFO L226 Difference]: Without dead ends: 183 [2023-11-19 08:02:56,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:02:56,295 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 71 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 75 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:56,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 655 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 332 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2023-11-19 08:02:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-19 08:02:56,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2023-11-19 08:02:56,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 130 states have (on average 1.3461538461538463) internal successors, (175), 134 states have internal predecessors, (175), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 08:02:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2023-11-19 08:02:56,325 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 60 [2023-11-19 08:02:56,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:56,325 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2023-11-19 08:02:56,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 08:02:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2023-11-19 08:02:56,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 08:02:56,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:56,335 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:56,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:56,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 08:02:56,544 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:02:56,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1917758486, now seen corresponding path program 2 times [2023-11-19 08:02:56,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:56,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949376552] [2023-11-19 08:02:56,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:56,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:58,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 08:02:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 08:02:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 08:02:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-19 08:02:59,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:59,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949376552] [2023-11-19 08:02:59,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949376552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:59,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:59,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 08:02:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206749093] [2023-11-19 08:02:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:59,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:02:59,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:59,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:02:59,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:02:59,168 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 08:03:00,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:00,520 INFO L93 Difference]: Finished difference Result 420 states and 615 transitions. [2023-11-19 08:03:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 08:03:00,521 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2023-11-19 08:03:00,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:00,525 INFO L225 Difference]: With dead ends: 420 [2023-11-19 08:03:00,525 INFO L226 Difference]: Without dead ends: 283 [2023-11-19 08:03:00,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-11-19 08:03:00,527 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 502 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:00,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 431 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 08:03:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-19 08:03:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 220. [2023-11-19 08:03:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.2760736196319018) internal successors, (208), 161 states have internal predecessors, (208), 43 states have call successors, (43), 7 states have call predecessors, (43), 10 states have return successors, (51), 51 states have call predecessors, (51), 42 states have call successors, (51) [2023-11-19 08:03:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 302 transitions. [2023-11-19 08:03:00,557 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 302 transitions. Word has length 75 [2023-11-19 08:03:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:00,558 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 302 transitions. [2023-11-19 08:03:00,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 08:03:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 302 transitions. [2023-11-19 08:03:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:03:00,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:00,560 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:00,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:03:00,561 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:03:00,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash 751428168, now seen corresponding path program 1 times [2023-11-19 08:03:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757542795] [2023-11-19 08:03:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 08:03:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 08:03:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:03:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-19 08:03:02,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:02,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757542795] [2023-11-19 08:03:02,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757542795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:02,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:02,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311610158] [2023-11-19 08:03:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:02,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:02,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:02,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:02,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:02,409 INFO L87 Difference]: Start difference. First operand 220 states and 302 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:03:04,434 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 [] [2023-11-19 08:03:06,440 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 [] [2023-11-19 08:03:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:06,932 INFO L93 Difference]: Finished difference Result 400 states and 561 transitions. [2023-11-19 08:03:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:06,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2023-11-19 08:03:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:06,935 INFO L225 Difference]: With dead ends: 400 [2023-11-19 08:03:06,935 INFO L226 Difference]: Without dead ends: 224 [2023-11-19 08:03:06,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:06,938 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 64 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 74 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:06,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 499 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 265 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2023-11-19 08:03:06,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-19 08:03:06,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2023-11-19 08:03:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.2699386503067485) internal successors, (207), 161 states have internal predecessors, (207), 43 states have call successors, (43), 7 states have call predecessors, (43), 10 states have return successors, (51), 51 states have call predecessors, (51), 42 states have call successors, (51) [2023-11-19 08:03:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 301 transitions. [2023-11-19 08:03:06,969 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 301 transitions. Word has length 76 [2023-11-19 08:03:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:06,972 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 301 transitions. [2023-11-19 08:03:06,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:03:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 301 transitions. [2023-11-19 08:03:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 08:03:06,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:06,976 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:06,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:03:06,976 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 08:03:06,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:06,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1622906063, now seen corresponding path program 1 times [2023-11-19 08:03:06,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:06,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895358011] [2023-11-19 08:03:06,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:06,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:03:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 08:03:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:03:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 08:03:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 08:03:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-11-19 08:03:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895358011] [2023-11-19 08:03:09,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895358011] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895599226] [2023-11-19 08:03:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:09,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:09,968 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:09,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c3cc4e-1e75-4c1b-90ab-882bc286cc80/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:03:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:10,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-19 08:03:10,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:10,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-19 08:03:10,782 INFO L349 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2023-11-19 08:03:10,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 56 [2023-11-19 08:03:11,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:11,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:11,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:11,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:12,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:12,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:12,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:13,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:13,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:13,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-11-19 08:03:13,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:13,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:14,302 INFO L349 Elim1Store]: treesize reduction 357, result has 32.1 percent of original size [2023-11-19 08:03:14,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 368 [2023-11-19 08:03:14,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2023-11-19 08:03:14,398 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2023-11-19 08:03:14,438 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2023-11-19 08:03:14,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 08:03:14,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 08:03:14,688 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 14 treesize of output 13 [2023-11-19 08:03:14,743 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 14 treesize of output 13 [2023-11-19 08:03:14,801 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 14 treesize of output 13 [2023-11-19 08:03:14,988 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 14 treesize of output 13 [2023-11-19 08:03:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,160 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:03:15,176 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:03:15,288 INFO L349 Elim1Store]: treesize reduction 146, result has 18.4 percent of original size [2023-11-19 08:03:15,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 129 treesize of output 119 [2023-11-19 08:03:15,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:15,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:03:15,575 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:03:15,644 INFO L349 Elim1Store]: treesize reduction 110, result has 18.5 percent of original size [2023-11-19 08:03:15,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 16 case distinctions, treesize of input 164 treesize of output 144 [2023-11-19 08:03:18,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-11-19 08:03:19,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-19 08:03:19,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 133 [2023-11-19 08:03:19,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-11-19 08:03:19,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-19 08:03:19,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-19 08:03:19,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2023-11-19 08:03:19,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2023-11-19 08:03:19,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-11-19 08:03:19,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-11-19 08:03:19,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-19 08:03:19,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30