./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 8393723b 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_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lazy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:16:26,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:16:26,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:16:26,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:16:26,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:16:26,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:16:26,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:16:26,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:16:26,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:16:26,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:16:26,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:16:26,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:16:26,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:16:26,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:16:26,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:16:26,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:16:26,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:16:26,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:16:26,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:16:26,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:16:26,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:16:26,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:16:26,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:16:26,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:16:26,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:16:26,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:16:26,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:16:26,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:16:26,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:16:26,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:16:26,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:16:26,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:16:26,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:16:26,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:16:26,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:16:26,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:16:26,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:16:26,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:16:26,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:16:26,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:16:26,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:16:26,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:16:26,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:16:26,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:16:26,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:16:26,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:16:26,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:16:26,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:16:26,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:16:26,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:16:26,572 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:16:26,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:16:26,574 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:16:26,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:16:26,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:16:26,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:16:26,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:16:26,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:16:26,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:16:26,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:16:26,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:16:26,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:16:26,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:16:26,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:16:26,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:16:26,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:16:26,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:16:26,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:16:26,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:16:26,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:16:26,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:16:26,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:16:26,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:16:26,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:16:26,582 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:16:26,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:16:26,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:16:26,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2022-11-18 20:16:26,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:16:27,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:16:27,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:16:27,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:16:27,014 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:16:27,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-pthread/cs_lazy.i [2022-11-18 20:16:27,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/data/e19ef35f6/3775cd603cbb453f923d9d1912b7ccf2/FLAG6aa31e632 [2022-11-18 20:16:27,761 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:16:27,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/sv-benchmarks/c/seq-pthread/cs_lazy.i [2022-11-18 20:16:27,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/data/e19ef35f6/3775cd603cbb453f923d9d1912b7ccf2/FLAG6aa31e632 [2022-11-18 20:16:28,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/data/e19ef35f6/3775cd603cbb453f923d9d1912b7ccf2 [2022-11-18 20:16:28,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:16:28,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:16:28,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:16:28,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:16:28,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:16:28,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:28,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6821e381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28, skipping insertion in model container [2022-11-18 20:16:28,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:28,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:16:28,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:16:28,581 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/sv-benchmarks/c/seq-pthread/cs_lazy.i[23394,23407] [2022-11-18 20:16:28,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:16:28,779 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:16:28,835 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/sv-benchmarks/c/seq-pthread/cs_lazy.i[23394,23407] [2022-11-18 20:16:28,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:16:28,939 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:16:28,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28 WrapperNode [2022-11-18 20:16:28,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:16:28,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:16:28,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:16:28,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:16:28,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:28,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,060 INFO L138 Inliner]: procedures = 145, calls = 212, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 522 [2022-11-18 20:16:29,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:16:29,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:16:29,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:16:29,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:16:29,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:16:29,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:16:29,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:16:29,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:16:29,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (1/1) ... [2022-11-18 20:16:29,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:16:29,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:29,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:16:29,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:16:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:16:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:16:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:16:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:16:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:16:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-11-18 20:16:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-11-18 20:16:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-18 20:16:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-18 20:16:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:16:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-18 20:16:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-18 20:16:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-18 20:16:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-18 20:16:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:16:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:16:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-18 20:16:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-18 20:16:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:16:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-11-18 20:16:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-11-18 20:16:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:16:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:16:29,543 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:16:29,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:16:30,045 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0 != ~__CS_ret~0 % 256;thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2022-11-18 20:16:30,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != ~__CS_ret~0 % 256); [2022-11-18 20:16:30,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != ~__CS_ret~0 % 256;thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2022-11-18 20:16:30,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0 != ~__CS_ret~0 % 256); [2022-11-18 20:16:30,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: SUMMARY for call __CS_cs(); srcloc: null [2022-11-18 20:16:30,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume 0 != ~__CS_ret~0 % 256;thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2022-11-18 20:16:30,047 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-18 20:16:32,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:16:32,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:16:32,581 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:16:32,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:16:32 BoogieIcfgContainer [2022-11-18 20:16:32,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:16:32,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:16:32,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:16:32,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:16:32,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:16:28" (1/3) ... [2022-11-18 20:16:32,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6a848e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:16:32, skipping insertion in model container [2022-11-18 20:16:32,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:28" (2/3) ... [2022-11-18 20:16:32,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6a848e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:16:32, skipping insertion in model container [2022-11-18 20:16:32,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:16:32" (3/3) ... [2022-11-18 20:16:32,595 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lazy.i [2022-11-18 20:16:32,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:16:32,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-18 20:16:32,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:16:32,694 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=LoopsAndPotentialCycles, 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;@76ec84ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:16:32,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 20:16:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 130 states have (on average 1.5615384615384615) internal successors, (203), 146 states have internal predecessors, (203), 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) [2022-11-18 20:16:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:16:32,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:32,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:16:32,710 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)] === [2022-11-18 20:16:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash 280635441, now seen corresponding path program 1 times [2022-11-18 20:16:32,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:32,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358743988] [2022-11-18 20:16:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:32,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:33,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:33,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358743988] [2022-11-18 20:16:33,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358743988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:33,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:33,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:16:33,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795210165] [2022-11-18 20:16:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:33,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:16:33,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:33,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:16:33,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:16:33,422 INFO L87 Difference]: Start difference. First operand has 190 states, 130 states have (on average 1.5615384615384615) internal successors, (203), 146 states have internal predecessors, (203), 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) [2022-11-18 20:16:33,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:33,593 INFO L93 Difference]: Finished difference Result 373 states and 587 transitions. [2022-11-18 20:16:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:16:33,598 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 [2022-11-18 20:16:33,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:33,620 INFO L225 Difference]: With dead ends: 373 [2022-11-18 20:16:33,624 INFO L226 Difference]: Without dead ends: 156 [2022-11-18 20:16:33,636 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 [2022-11-18 20:16:33,643 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 1 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:33,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 497 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:16:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-18 20:16:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-11-18 20:16:33,727 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) [2022-11-18 20:16:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 226 transitions. [2022-11-18 20:16:33,737 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 226 transitions. Word has length 5 [2022-11-18 20:16:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:33,737 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 226 transitions. [2022-11-18 20:16:33,737 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) [2022-11-18 20:16:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 226 transitions. [2022-11-18 20:16:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:16:33,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:33,739 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:33,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:16:33,739 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)] === [2022-11-18 20:16:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:33,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1890587857, now seen corresponding path program 1 times [2022-11-18 20:16:33,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:33,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858562007] [2022-11-18 20:16:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:33,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:16:33,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:33,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858562007] [2022-11-18 20:16:33,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858562007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:33,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:33,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:16:33,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069382843] [2022-11-18 20:16:33,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:33,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:16:33,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:33,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:16:33,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:16:33,862 INFO L87 Difference]: Start difference. First operand 156 states and 226 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:16:33,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:33,901 INFO L93 Difference]: Finished difference Result 156 states and 226 transitions. [2022-11-18 20:16:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:16:33,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:16:33,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:33,904 INFO L225 Difference]: With dead ends: 156 [2022-11-18 20:16:33,905 INFO L226 Difference]: Without dead ends: 155 [2022-11-18 20:16:33,905 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 [2022-11-18 20:16:33,907 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 2 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 433 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 [2022-11-18 20:16:33,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 433 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:16:33,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-18 20:16:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-18 20:16:33,923 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) [2022-11-18 20:16:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 225 transitions. [2022-11-18 20:16:33,926 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 225 transitions. Word has length 8 [2022-11-18 20:16:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:33,927 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 225 transitions. [2022-11-18 20:16:33,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:16:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 225 transitions. [2022-11-18 20:16:33,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:16:33,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:33,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:33,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:16:33,928 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)] === [2022-11-18 20:16:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1521317165, now seen corresponding path program 1 times [2022-11-18 20:16:33,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:33,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225284927] [2022-11-18 20:16:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:33,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:34,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:34,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225284927] [2022-11-18 20:16:34,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225284927] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:34,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724131898] [2022-11-18 20:16:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:34,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:34,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:34,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:34,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:16:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:34,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:16:34,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:16:34,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:34,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724131898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:34,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:16:34,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-18 20:16:34,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541051574] [2022-11-18 20:16:34,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:34,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:16:34,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:16:34,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:34,352 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) [2022-11-18 20:16:34,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:34,447 INFO L93 Difference]: Finished difference Result 307 states and 448 transitions. [2022-11-18 20:16:34,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:16:34,449 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 [2022-11-18 20:16:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:34,453 INFO L225 Difference]: With dead ends: 307 [2022-11-18 20:16:34,456 INFO L226 Difference]: Without dead ends: 166 [2022-11-18 20:16:34,459 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 [2022-11-18 20:16:34,461 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 3 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:34,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 429 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:16:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-18 20:16:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-11-18 20:16:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 114 states have (on average 1.4298245614035088) internal successors, (163), 121 states have internal predecessors, (163), 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) [2022-11-18 20:16:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 236 transitions. [2022-11-18 20:16:34,499 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 236 transitions. Word has length 9 [2022-11-18 20:16:34,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:34,499 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 236 transitions. [2022-11-18 20:16:34,500 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) [2022-11-18 20:16:34,500 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 236 transitions. [2022-11-18 20:16:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:16:34,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:34,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:16:34,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:16:34,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 20:16:34,707 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)] === [2022-11-18 20:16:34,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1521318894, now seen corresponding path program 1 times [2022-11-18 20:16:34,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:34,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574758209] [2022-11-18 20:16:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:34,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:34,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:34,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574758209] [2022-11-18 20:16:34,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574758209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:34,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761299004] [2022-11-18 20:16:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:34,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:34,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:34,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:34,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:16:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:35,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:16:35,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:35,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:35,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761299004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:35,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:16:35,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-18 20:16:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834358336] [2022-11-18 20:16:35,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:35,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:16:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:16:35,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:35,210 INFO L87 Difference]: Start difference. First operand 164 states and 236 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-18 20:16:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:35,284 INFO L93 Difference]: Finished difference Result 164 states and 236 transitions. [2022-11-18 20:16:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:16:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-11-18 20:16:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:35,287 INFO L225 Difference]: With dead ends: 164 [2022-11-18 20:16:35,287 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 20:16:35,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:35,289 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 54 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:35,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 404 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:16:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 20:16:35,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2022-11-18 20:16:35,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 110 states have (on average 1.4272727272727272) 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) [2022-11-18 20:16:35,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 230 transitions. [2022-11-18 20:16:35,307 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 230 transitions. Word has length 9 [2022-11-18 20:16:35,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:35,307 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 230 transitions. [2022-11-18 20:16:35,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-18 20:16:35,308 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 230 transitions. [2022-11-18 20:16:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:16:35,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:35,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:35,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:16:35,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:35,515 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)] === [2022-11-18 20:16:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:35,516 INFO L85 PathProgramCache]: Analyzing trace with hash -83807815, now seen corresponding path program 1 times [2022-11-18 20:16:35,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:35,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283544429] [2022-11-18 20:16:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:35,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:35,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:35,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283544429] [2022-11-18 20:16:35,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283544429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:35,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026037840] [2022-11-18 20:16:35,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:35,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:35,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:35,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:35,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:16:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:35,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:16:35,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:16:35,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:35,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026037840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:35,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:16:35,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-18 20:16:35,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679995325] [2022-11-18 20:16:35,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:35,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:16:35,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:35,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:16:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:35,845 INFO L87 Difference]: Start difference. First operand 159 states and 230 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) [2022-11-18 20:16:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:35,880 INFO L93 Difference]: Finished difference Result 159 states and 230 transitions. [2022-11-18 20:16:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:16:35,881 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 [2022-11-18 20:16:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:35,883 INFO L225 Difference]: With dead ends: 159 [2022-11-18 20:16:35,883 INFO L226 Difference]: Without dead ends: 158 [2022-11-18 20:16:35,884 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 [2022-11-18 20:16:35,885 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 22 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 399 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 [2022-11-18 20:16:35,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 399 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:16:35,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-18 20:16:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-11-18 20:16:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 110 states have (on average 1.4181818181818182) internal successors, (156), 115 states have internal predecessors, (156), 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) [2022-11-18 20:16:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 229 transitions. [2022-11-18 20:16:35,899 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 229 transitions. Word has length 10 [2022-11-18 20:16:35,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:35,900 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 229 transitions. [2022-11-18 20:16:35,900 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) [2022-11-18 20:16:35,900 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 229 transitions. [2022-11-18 20:16:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:16:35,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:35,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:16:35,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 20:16:36,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:36,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:16:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash -186043306, now seen corresponding path program 1 times [2022-11-18 20:16:36,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:36,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249905332] [2022-11-18 20:16:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:36,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:16:36,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:36,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249905332] [2022-11-18 20:16:36,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249905332] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:36,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237968270] [2022-11-18 20:16:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:36,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:36,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:36,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:36,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:16:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:36,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:16:36,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:16:36,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:36,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237968270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:36,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:16:36,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-18 20:16:36,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540155168] [2022-11-18 20:16:36,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:36,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:16:36,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:16:36,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:36,467 INFO L87 Difference]: Start difference. First operand 158 states and 229 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:16:36,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:36,495 INFO L93 Difference]: Finished difference Result 158 states and 229 transitions. [2022-11-18 20:16:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:16:36,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-18 20:16:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:36,498 INFO L225 Difference]: With dead ends: 158 [2022-11-18 20:16:36,498 INFO L226 Difference]: Without dead ends: 157 [2022-11-18 20:16:36,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:36,500 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 423 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 [2022-11-18 20:16:36,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 423 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:16:36,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-18 20:16:36,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2022-11-18 20:16:36,511 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) [2022-11-18 20:16:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 221 transitions. [2022-11-18 20:16:36,513 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 221 transitions. Word has length 17 [2022-11-18 20:16:36,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:36,513 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 221 transitions. [2022-11-18 20:16:36,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:16:36,514 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 221 transitions. [2022-11-18 20:16:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-18 20:16:36,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:36,517 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] [2022-11-18 20:16:36,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:36,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:16:36,724 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)] === [2022-11-18 20:16:36,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:36,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1919411443, now seen corresponding path program 1 times [2022-11-18 20:16:36,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:36,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981672318] [2022-11-18 20:16:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:36,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:16:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:16:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:16:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:16:37,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:37,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981672318] [2022-11-18 20:16:37,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981672318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:37,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359458312] [2022-11-18 20:16:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:37,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:37,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:37,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:37,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:16:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:37,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:16:37,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:16:37,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:16:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:16:37,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359458312] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:16:37,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:16:37,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-11-18 20:16:37,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858225773] [2022-11-18 20:16:37,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:16:37,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:16:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:37,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:16:37,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:16:37,601 INFO L87 Difference]: Start difference. First operand 151 states and 221 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-11-18 20:16:39,683 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 [] [2022-11-18 20:16:41,694 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 [] [2022-11-18 20:16:42,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:42,335 INFO L93 Difference]: Finished difference Result 314 states and 463 transitions. [2022-11-18 20:16:42,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:16:42,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 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 47 [2022-11-18 20:16:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:42,339 INFO L225 Difference]: With dead ends: 314 [2022-11-18 20:16:42,340 INFO L226 Difference]: Without dead ends: 166 [2022-11-18 20:16:42,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:16:42,342 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 76 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 79 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:42,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 673 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 325 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 20:16:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-18 20:16:42,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2022-11-18 20:16:42,364 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) [2022-11-18 20:16:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 230 transitions. [2022-11-18 20:16:42,366 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 230 transitions. Word has length 47 [2022-11-18 20:16:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:42,367 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 230 transitions. [2022-11-18 20:16:42,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-11-18 20:16:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 230 transitions. [2022-11-18 20:16:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-18 20:16:42,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:42,378 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] [2022-11-18 20:16:42,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:42,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:16:42,585 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)] === [2022-11-18 20:16:42,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:42,586 INFO L85 PathProgramCache]: Analyzing trace with hash 853777201, now seen corresponding path program 2 times [2022-11-18 20:16:42,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:42,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706070694] [2022-11-18 20:16:42,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:42,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:16:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:42,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:16:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:16:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:16:42,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:42,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706070694] [2022-11-18 20:16:42,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706070694] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:42,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371549219] [2022-11-18 20:16:42,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:16:42,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:42,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:42,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:43,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:16:43,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:16:43,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:16:43,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:16:43,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 20:16:43,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:43,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371549219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:43,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:16:43,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-18 20:16:43,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796428814] [2022-11-18 20:16:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:43,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:16:43,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:43,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:16:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:16:43,595 INFO L87 Difference]: Start difference. First operand 160 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:16:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:43,621 INFO L93 Difference]: Finished difference Result 295 states and 430 transitions. [2022-11-18 20:16:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:16:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 1 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 56 [2022-11-18 20:16:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:43,626 INFO L225 Difference]: With dead ends: 295 [2022-11-18 20:16:43,626 INFO L226 Difference]: Without dead ends: 160 [2022-11-18 20:16:43,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:16:43,629 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:43,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:16:43,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-18 20:16:43,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-18 20:16:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 113 states have (on average 1.3805309734513274) internal successors, (156), 117 states have internal predecessors, (156), 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) [2022-11-18 20:16:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 229 transitions. [2022-11-18 20:16:43,658 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 229 transitions. Word has length 56 [2022-11-18 20:16:43,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:43,658 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 229 transitions. [2022-11-18 20:16:43,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:16:43,659 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 229 transitions. [2022-11-18 20:16:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-18 20:16:43,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:43,661 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] [2022-11-18 20:16:43,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:43,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:43,870 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)] === [2022-11-18 20:16:43,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:43,871 INFO L85 PathProgramCache]: Analyzing trace with hash 833780806, now seen corresponding path program 1 times [2022-11-18 20:16:43,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:43,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690191193] [2022-11-18 20:16:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:43,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:44,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 20:16:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:44,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:16:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:16:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:16:44,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:44,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690191193] [2022-11-18 20:16:44,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690191193] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:16:44,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515568711] [2022-11-18 20:16:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:44,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:44,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:44,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:16:44,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:16:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:44,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:16:44,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:16:44,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:16:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:16:44,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515568711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:16:44,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:16:44,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2022-11-18 20:16:44,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469680851] [2022-11-18 20:16:44,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:16:44,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:16:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:44,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:16:44,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:16:44,899 INFO L87 Difference]: Start difference. First operand 160 states and 229 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 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) [2022-11-18 20:16:46,963 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 [] [2022-11-18 20:16:48,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:49,474 INFO L93 Difference]: Finished difference Result 323 states and 467 transitions. [2022-11-18 20:16:49,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:16:49,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 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 54 [2022-11-18 20:16:49,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:49,477 INFO L225 Difference]: With dead ends: 323 [2022-11-18 20:16:49,477 INFO L226 Difference]: Without dead ends: 183 [2022-11-18 20:16:49,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:16:49,479 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 78 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 76 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:49,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 658 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 324 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2022-11-18 20:16:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-18 20:16:49,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2022-11-18 20:16:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 130 states have (on average 1.3384615384615384) internal successors, (174), 134 states have internal predecessors, (174), 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) [2022-11-18 20:16:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 247 transitions. [2022-11-18 20:16:49,495 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 247 transitions. Word has length 54 [2022-11-18 20:16:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:49,496 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 247 transitions. [2022-11-18 20:16:49,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 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) [2022-11-18 20:16:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2022-11-18 20:16:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-18 20:16:49,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:49,498 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] [2022-11-18 20:16:49,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:49,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:16:49,707 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)] === [2022-11-18 20:16:49,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:49,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1856237121, now seen corresponding path program 2 times [2022-11-18 20:16:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:49,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115752572] [2022-11-18 20:16:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:16:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:16:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:16:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:50,575 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-18 20:16:50,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:50,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115752572] [2022-11-18 20:16:50,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115752572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:50,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:50,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:16:50,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909786907] [2022-11-18 20:16:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:50,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:16:50,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:50,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:16:50,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:16:50,579 INFO L87 Difference]: Start difference. First operand 177 states and 247 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 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) [2022-11-18 20:16:52,608 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 [] [2022-11-18 20:16:54,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:56,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:57,835 INFO L93 Difference]: Finished difference Result 471 states and 695 transitions. [2022-11-18 20:16:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:16:57,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 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 71 [2022-11-18 20:16:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:57,840 INFO L225 Difference]: With dead ends: 471 [2022-11-18 20:16:57,840 INFO L226 Difference]: Without dead ends: 334 [2022-11-18 20:16:57,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:16:57,843 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 338 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 168 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:57,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 686 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 533 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-11-18 20:16:57,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-18 20:16:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 182. [2022-11-18 20:16:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 134 states have (on average 1.328358208955224) internal successors, (178), 138 states have internal predecessors, (178), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (38), 36 states have call predecessors, (38), 36 states have call successors, (38) [2022-11-18 20:16:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 253 transitions. [2022-11-18 20:16:57,865 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 253 transitions. Word has length 71 [2022-11-18 20:16:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:57,866 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 253 transitions. [2022-11-18 20:16:57,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 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) [2022-11-18 20:16:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 253 transitions. [2022-11-18 20:16:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:16:57,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:57,868 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] [2022-11-18 20:16:57,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:16:57,869 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)] === [2022-11-18 20:16:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:57,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1639047313, now seen corresponding path program 1 times [2022-11-18 20:16:57,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:57,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888276616] [2022-11-18 20:16:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:57,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:17:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:17:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:17:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:00,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:17:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-18 20:17:00,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:00,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888276616] [2022-11-18 20:17:00,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888276616] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:17:00,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190492141] [2022-11-18 20:17:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:00,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:17:00,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:00,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:17:00,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:17:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:01,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-18 20:17:01,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:01,722 INFO L321 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2022-11-18 20:17:01,723 INFO L350 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 [2022-11-18 20:17:02,012 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:02,251 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:02,521 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:02,788 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:03,128 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:03,438 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:03,706 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:03,974 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:04,254 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:04,478 INFO L350 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 19 treesize of output 23 [2022-11-18 20:17:04,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:04,682 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-18 20:17:04,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 52 [2022-11-18 20:17:04,700 INFO L350 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 16 treesize of output 20 [2022-11-18 20:17:04,707 INFO L350 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 8 treesize of output 7 [2022-11-18 20:17:04,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 20:17:05,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:05,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:05,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2022-11-18 20:17:05,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 20:17:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 28 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-18 20:17:05,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:17:05,358 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3997 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_~#__CS_thread_status~0.base| v_ArrVal_3997) |c_~#__CS_thread_allocated~0.base|) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2022-11-18 20:17:05,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190492141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:17:05,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:17:05,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2022-11-18 20:17:05,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339013632] [2022-11-18 20:17:05,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:17:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:17:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:17:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2022-11-18 20:17:05,402 INFO L87 Difference]: Start difference. First operand 182 states and 253 transitions. Second operand has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 19 states have internal predecessors, (102), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-18 20:17:08,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:10,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:12,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:14,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:16,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:18,788 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 [] [2022-11-18 20:17:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:26,651 INFO L93 Difference]: Finished difference Result 775 states and 1135 transitions. [2022-11-18 20:17:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-18 20:17:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 19 states have internal predecessors, (102), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 92 [2022-11-18 20:17:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:26,656 INFO L225 Difference]: With dead ends: 775 [2022-11-18 20:17:26,656 INFO L226 Difference]: Without dead ends: 639 [2022-11-18 20:17:26,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=326, Invalid=2227, Unknown=1, NotChecked=98, Total=2652 [2022-11-18 20:17:26,660 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 606 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 4994 mSolverCounterSat, 384 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 6136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 4994 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 752 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:26,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 3457 Invalid, 6136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [384 Valid, 4994 Invalid, 6 Unknown, 752 Unchecked, 19.4s Time] [2022-11-18 20:17:26,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-11-18 20:17:26,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 413. [2022-11-18 20:17:26,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 295 states have (on average 1.3322033898305086) internal successors, (393), 295 states have internal predecessors, (393), 93 states have call successors, (93), 17 states have call predecessors, (93), 21 states have return successors, (100), 100 states have call predecessors, (100), 91 states have call successors, (100) [2022-11-18 20:17:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 586 transitions. [2022-11-18 20:17:26,735 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 586 transitions. Word has length 92 [2022-11-18 20:17:26,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:26,735 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 586 transitions. [2022-11-18 20:17:26,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 19 states have internal predecessors, (102), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-18 20:17:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 586 transitions. [2022-11-18 20:17:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-18 20:17:26,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:26,739 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] [2022-11-18 20:17:26,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:26,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:17:26,948 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:17:26,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1577718951, now seen corresponding path program 1 times [2022-11-18 20:17:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:26,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89878391] [2022-11-18 20:17:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:17:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:17:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:17:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:17:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:29,289 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-18 20:17:29,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:29,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89878391] [2022-11-18 20:17:29,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89878391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:17:29,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463372307] [2022-11-18 20:17:29,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:29,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:17:29,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:29,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:17:29,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:17:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:30,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-18 20:17:30,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:30,140 INFO L321 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2022-11-18 20:17:30,140 INFO L350 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 [2022-11-18 20:17:30,383 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:30,624 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:30,886 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:31,101 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:31,467 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:31,745 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:32,016 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:32,286 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:32,512 INFO L350 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 28 treesize of output 30 [2022-11-18 20:17:32,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:17:32,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 40 [2022-11-18 20:17:32,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:17:32,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:17:32,921 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:17:32,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 55 [2022-11-18 20:17:32,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:17:32,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-18 20:17:32,946 INFO L350 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 8 treesize of output 7 [2022-11-18 20:17:33,069 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:17:33,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 20:17:33,499 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:17:33,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 13 [2022-11-18 20:17:33,537 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 28 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-18 20:17:33,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:17:40,382 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~nondet45#1| Int) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_4890 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_4892 (Array Int Int)) (v_ArrVal_4882 (Array Int Int)) (v_ArrVal_4894 (Array Int Int)) (v_ArrVal_4887 (Array Int Int)) (v_ArrVal_4899 (Array Int Int)) (v_ArrVal_4900 (Array Int Int))) (let ((.cse0 (select (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet45#1|)) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_4882) |c_~#__CS_thread_status~0.base| v_ArrVal_4892) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_4887) |c_~#mutex~0.base| v_ArrVal_4890) |c_~#data~0.base| v_ArrVal_4900) |c_~#__CS_thread_born_round~0.base| v_ArrVal_4899) |c_~#__CS_thread_status~0.base| v_ArrVal_4894) |c_~#__CS_thread_allocated~0.base|))) (or (not (= (mod (select .cse0 (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1)) (= (mod (select .cse0 (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1)))) is different from false [2022-11-18 20:18:03,388 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_#t~nondet45#1| Int) (v_ArrVal_4890 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_4892 (Array Int Int)) (v_ArrVal_4882 (Array Int Int)) (v_ArrVal_4894 (Array Int Int)) (v_ArrVal_4874 (Array Int Int)) (v_ArrVal_4875 (Array Int Int)) (v_ArrVal_4876 (Array Int Int)) (v_ArrVal_4887 (Array Int Int)) (v_ArrVal_4877 (Array Int Int)) (v_ArrVal_4899 (Array Int Int)) (v_ArrVal_4878 (Array Int Int)) (v_ArrVal_4900 (Array Int Int)) (v_ArrVal_4879 (Array Int Int))) (let ((.cse0 (select (store (store (store (store (store (store (store (let ((.cse1 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4875) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4874) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4876) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4877) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4879) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4878))) (store .cse1 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet45#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_4882) |c_~#__CS_thread_status~0.base| v_ArrVal_4892) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_4887) |c_~#mutex~0.base| v_ArrVal_4890) |c_~#data~0.base| v_ArrVal_4900) |c_~#__CS_thread_born_round~0.base| v_ArrVal_4899) |c_~#__CS_thread_status~0.base| v_ArrVal_4894) |c_~#__CS_thread_allocated~0.base|))) (or (= (mod (select .cse0 (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1) (not (= (mod (select .cse0 (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))))) is different from false [2022-11-18 20:18:16,081 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_#t~nondet45#1| Int) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_4882 (Array Int Int)) (v_ArrVal_4887 (Array Int Int)) (v_ArrVal_4866 (Array Int Int)) (v_ArrVal_4867 (Array Int Int)) (v_ArrVal_4900 (Array Int Int)) (v_ArrVal_4868 (Array Int Int)) (v_ArrVal_4869 (Array Int Int)) (v_ArrVal_4890 (Array Int Int)) (v_ArrVal_4870 (Array Int Int)) (v_ArrVal_4892 (Array Int Int)) (v_ArrVal_4871 (Array Int Int)) (v_ArrVal_4872 (Array Int Int)) (v_ArrVal_4894 (Array Int Int)) (v_ArrVal_4873 (Array Int Int)) (v_ArrVal_4874 (Array Int Int)) (v_ArrVal_4875 (Array Int Int)) (v_ArrVal_4876 (Array Int Int)) (v_ArrVal_4877 (Array Int Int)) (v_ArrVal_4899 (Array Int Int)) (v_ArrVal_4878 (Array Int Int)) (v_ArrVal_4879 (Array Int Int))) (let ((.cse0 (select (store (store (store (store (store (store (store (let ((.cse1 (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4866) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4867) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4868) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4869) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_4870) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_4871) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4872) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4873) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4875) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4874) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4876) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4877) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_4879) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_4878))) (store .cse1 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet45#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_4882) |c_~#__CS_thread_status~0.base| v_ArrVal_4892) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_4887) |c_~#mutex~0.base| v_ArrVal_4890) |c_~#data~0.base| v_ArrVal_4900) |c_~#__CS_thread_born_round~0.base| v_ArrVal_4899) |c_~#__CS_thread_status~0.base| v_ArrVal_4894) |c_~#__CS_thread_allocated~0.base|))) (or (= (mod (select .cse0 (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1) (not (= (mod (select .cse0 (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))))) is different from false [2022-11-18 20:18:21,821 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 29 refuted. 17 times theorem prover too weak. 24 trivial. 61 not checked. [2022-11-18 20:18:21,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463372307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:18:21,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:18:21,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 19] total 42 [2022-11-18 20:18:21,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153835441] [2022-11-18 20:18:21,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:18:21,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-18 20:18:21,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:21,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-18 20:18:21,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1236, Unknown=95, NotChecked=228, Total=1722 [2022-11-18 20:18:21,824 INFO L87 Difference]: Start difference. First operand 413 states and 586 transitions. Second operand has 42 states, 41 states have (on average 4.073170731707317) internal successors, (167), 38 states have internal predecessors, (167), 8 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (15), 10 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-18 20:18:24,989 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 [] [2022-11-18 20:18:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:54,884 INFO L93 Difference]: Finished difference Result 1068 states and 1536 transitions. [2022-11-18 20:18:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-18 20:18:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.073170731707317) internal successors, (167), 38 states have internal predecessors, (167), 8 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (15), 10 states have call predecessors, (15), 8 states have call successors, (15) Word has length 96 [2022-11-18 20:18:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:18:54,892 INFO L225 Difference]: With dead ends: 1068 [2022-11-18 20:18:54,892 INFO L226 Difference]: Without dead ends: 939 [2022-11-18 20:18:54,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1219 ImplicationChecksByTransitivity, 56.8s TimeCoverageRelationStatistics Valid=590, Invalid=5324, Unknown=104, NotChecked=462, Total=6480 [2022-11-18 20:18:54,897 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 999 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 4891 mSolverCounterSat, 706 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 10939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 706 IncrementalHoareTripleChecker+Valid, 4891 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 5341 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:18:54,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 4384 Invalid, 10939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [706 Valid, 4891 Invalid, 1 Unknown, 5341 Unchecked, 21.8s Time] [2022-11-18 20:18:54,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-11-18 20:18:54,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 666. [2022-11-18 20:18:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 472 states have (on average 1.3453389830508475) internal successors, (635), 473 states have internal predecessors, (635), 150 states have call successors, (150), 28 states have call predecessors, (150), 40 states have return successors, (188), 164 states have call predecessors, (188), 147 states have call successors, (188) [2022-11-18 20:18:54,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 973 transitions. [2022-11-18 20:18:54,994 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 973 transitions. Word has length 96 [2022-11-18 20:18:54,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:18:54,995 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 973 transitions. [2022-11-18 20:18:54,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.073170731707317) internal successors, (167), 38 states have internal predecessors, (167), 8 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (15), 10 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-18 20:18:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 973 transitions. [2022-11-18 20:18:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:18:54,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:18:54,997 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] [2022-11-18 20:18:55,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:55,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:18:55,207 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:18:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1811914481, now seen corresponding path program 1 times [2022-11-18 20:18:55,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:55,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655638108] [2022-11-18 20:18:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:55,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:57,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:18:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:18:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:58,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:18:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:58,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:18:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:18:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-18 20:18:59,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:59,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655638108] [2022-11-18 20:18:59,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655638108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:18:59,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581276029] [2022-11-18 20:18:59,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:59,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:18:59,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:59,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:18:59,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:18:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:59,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:18:59,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:19:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-18 20:19:00,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:19:00,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581276029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:00,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:19:00,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2022-11-18 20:19:00,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716871645] [2022-11-18 20:19:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:00,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:19:00,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:19:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:19:00,802 INFO L87 Difference]: Start difference. First operand 666 states and 973 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:19:03,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:03,812 INFO L93 Difference]: Finished difference Result 1414 states and 2065 transitions. [2022-11-18 20:19:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:19:03,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2022-11-18 20:19:03,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:03,827 INFO L225 Difference]: With dead ends: 1414 [2022-11-18 20:19:03,827 INFO L226 Difference]: Without dead ends: 844 [2022-11-18 20:19:03,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:19:03,836 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 348 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:03,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 509 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 20:19:03,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-11-18 20:19:03,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 541. [2022-11-18 20:19:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 389 states have (on average 1.300771208226221) internal successors, (506), 386 states have internal predecessors, (506), 113 states have call successors, (113), 22 states have call predecessors, (113), 35 states have return successors, (153), 132 states have call predecessors, (153), 111 states have call successors, (153) [2022-11-18 20:19:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 772 transitions. [2022-11-18 20:19:03,937 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 772 transitions. Word has length 92 [2022-11-18 20:19:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:03,938 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 772 transitions. [2022-11-18 20:19:03,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:19:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 772 transitions. [2022-11-18 20:19:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-18 20:19:03,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:03,940 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] [2022-11-18 20:19:03,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:19:04,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:19:04,148 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:19:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:04,149 INFO L85 PathProgramCache]: Analyzing trace with hash 5455921, now seen corresponding path program 1 times [2022-11-18 20:19:04,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:04,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465209442] [2022-11-18 20:19:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:19:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:07,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:19:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:19:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:19:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-18 20:19:07,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465209442] [2022-11-18 20:19:07,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465209442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:19:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424510490] [2022-11-18 20:19:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:07,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:07,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:07,787 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:07,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:19:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:08,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-18 20:19:08,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:19:09,004 INFO L321 Elim1Store]: treesize reduction 56, result has 30.9 percent of original size [2022-11-18 20:19:09,004 INFO L350 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 83 treesize of output 97 [2022-11-18 20:19:09,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:10,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:10,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:11,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:11,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:12,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:13,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:13,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:14,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:19:14,720 INFO L350 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 28 treesize of output 30 [2022-11-18 20:19:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:15,285 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-18 20:19:15,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 59 [2022-11-18 20:19:15,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:19:15,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-18 20:19:15,336 INFO L350 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 8 treesize of output 7 [2022-11-18 20:19:15,637 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:19:15,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 20:19:16,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:16,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:19:16,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2022-11-18 20:19:16,817 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:19:16,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 13 [2022-11-18 20:19:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 28 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-18 20:19:16,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:19:17,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424510490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:19:17,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:19:17,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2022-11-18 20:19:17,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605635201] [2022-11-18 20:19:17,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:19:17,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:19:17,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:19:17,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=737, Unknown=6, NotChecked=0, Total=870 [2022-11-18 20:19:17,867 INFO L87 Difference]: Start difference. First operand 541 states and 772 transitions. Second operand has 25 states, 23 states have (on average 4.565217391304348) internal successors, (105), 21 states have internal predecessors, (105), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 20:19:20,535 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 [] [2022-11-18 20:19:30,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:30,345 INFO L93 Difference]: Finished difference Result 787 states and 1111 transitions. [2022-11-18 20:19:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:19:30,346 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 4.565217391304348) internal successors, (105), 21 states have internal predecessors, (105), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 97 [2022-11-18 20:19:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:30,349 INFO L225 Difference]: With dead ends: 787 [2022-11-18 20:19:30,350 INFO L226 Difference]: Without dead ends: 597 [2022-11-18 20:19:30,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=278, Invalid=1696, Unknown=6, NotChecked=0, Total=1980 [2022-11-18 20:19:30,353 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 343 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 197 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 205 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:30,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1344 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1697 Invalid, 1 Unknown, 205 Unchecked, 8.7s Time] [2022-11-18 20:19:30,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-11-18 20:19:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 549. [2022-11-18 20:19:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 396 states have (on average 1.2954545454545454) internal successors, (513), 393 states have internal predecessors, (513), 113 states have call successors, (113), 22 states have call predecessors, (113), 36 states have return successors, (154), 133 states have call predecessors, (154), 111 states have call successors, (154) [2022-11-18 20:19:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 780 transitions. [2022-11-18 20:19:30,451 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 780 transitions. Word has length 97 [2022-11-18 20:19:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:30,452 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 780 transitions. [2022-11-18 20:19:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 4.565217391304348) internal successors, (105), 21 states have internal predecessors, (105), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 20:19:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 780 transitions. [2022-11-18 20:19:30,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-18 20:19:30,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:30,454 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] [2022-11-18 20:19:30,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:19:30,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:19:30,669 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:19:30,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:30,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1638454438, now seen corresponding path program 1 times [2022-11-18 20:19:30,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:30,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864052637] [2022-11-18 20:19:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:30,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:19:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:19:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:19:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:19:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-11-18 20:19:42,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:42,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864052637] [2022-11-18 20:19:42,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864052637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:42,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:42,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:42,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574268246] [2022-11-18 20:19:42,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:42,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:19:42,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:19:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:19:42,156 INFO L87 Difference]: Start difference. First operand 549 states and 780 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-18 20:19:44,453 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 [] [2022-11-18 20:19:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:47,815 INFO L93 Difference]: Finished difference Result 849 states and 1200 transitions. [2022-11-18 20:19:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:19:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 95 [2022-11-18 20:19:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:47,822 INFO L225 Difference]: With dead ends: 849 [2022-11-18 20:19:47,822 INFO L226 Difference]: Without dead ends: 656 [2022-11-18 20:19:47,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:19:47,826 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 220 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 146 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:47,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 715 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 837 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-18 20:19:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2022-11-18 20:19:47,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 635. [2022-11-18 20:19:47,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 461 states have (on average 1.2733188720173536) internal successors, (587), 461 states have internal predecessors, (587), 126 states have call successors, (126), 27 states have call predecessors, (126), 44 states have return successors, (176), 146 states have call predecessors, (176), 123 states have call successors, (176) [2022-11-18 20:19:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 889 transitions. [2022-11-18 20:19:47,963 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 889 transitions. Word has length 95 [2022-11-18 20:19:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:47,964 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 889 transitions. [2022-11-18 20:19:47,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-18 20:19:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 889 transitions. [2022-11-18 20:19:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-18 20:19:47,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:47,967 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] [2022-11-18 20:19:47,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:19:47,968 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:19:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1366351377, now seen corresponding path program 1 times [2022-11-18 20:19:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:47,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254191995] [2022-11-18 20:19:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:47,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:19:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:19:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:19:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:19:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 72 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-18 20:19:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:59,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254191995] [2022-11-18 20:19:59,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254191995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:19:59,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594345631] [2022-11-18 20:19:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:59,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:59,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:59,374 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:59,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:20:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:00,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-18 20:20:00,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:00,625 INFO L321 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2022-11-18 20:20:00,626 INFO L350 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 [2022-11-18 20:20:01,232 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:01,667 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:02,307 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:02,869 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:03,666 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:04,296 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:04,931 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:05,431 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:06,046 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:06,722 INFO L350 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 28 treesize of output 30 [2022-11-18 20:20:07,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:07,333 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:20:07,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 55 [2022-11-18 20:20:07,350 INFO L350 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 8 treesize of output 7 [2022-11-18 20:20:07,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:20:07,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-18 20:20:07,716 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:20:07,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 20:20:08,711 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:20:08,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 13 [2022-11-18 20:20:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 28 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-18 20:20:08,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 28 refuted. 79 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:24:22,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594345631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:22,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:22,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 19] total 41 [2022-11-18 20:24:22,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774883428] [2022-11-18 20:24:22,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:22,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-18 20:24:22,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:22,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-18 20:24:22,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1272, Unknown=131, NotChecked=0, Total=1640 [2022-11-18 20:24:22,998 INFO L87 Difference]: Start difference. First operand 635 states and 889 transitions. Second operand has 41 states, 40 states have (on average 4.05) internal successors, (162), 38 states have internal predecessors, (162), 7 states have call successors, (16), 8 states have call predecessors, (16), 6 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-18 20:24:30,176 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 [] [2022-11-18 20:24:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:37,605 INFO L93 Difference]: Finished difference Result 844 states and 1183 transitions. [2022-11-18 20:24:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:24:37,605 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.05) internal successors, (162), 38 states have internal predecessors, (162), 7 states have call successors, (16), 8 states have call predecessors, (16), 6 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 97 [2022-11-18 20:24:37,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:37,608 INFO L225 Difference]: With dead ends: 844 [2022-11-18 20:24:37,608 INFO L226 Difference]: Without dead ends: 571 [2022-11-18 20:24:37,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 259.1s TimeCoverageRelationStatistics Valid=459, Invalid=1960, Unknown=131, NotChecked=0, Total=2550 [2022-11-18 20:24:37,611 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 471 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 238 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1540 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:37,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1991 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1093 Invalid, 1 Unknown, 1540 Unchecked, 9.2s Time] [2022-11-18 20:24:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-18 20:24:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 547. [2022-11-18 20:24:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 394 states have (on average 1.2893401015228427) internal successors, (508), 391 states have internal predecessors, (508), 113 states have call successors, (113), 23 states have call predecessors, (113), 36 states have return successors, (153), 132 states have call predecessors, (153), 111 states have call successors, (153) [2022-11-18 20:24:37,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 774 transitions. [2022-11-18 20:24:37,720 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 774 transitions. Word has length 97 [2022-11-18 20:24:37,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:37,721 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 774 transitions. [2022-11-18 20:24:37,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.05) internal successors, (162), 38 states have internal predecessors, (162), 7 states have call successors, (16), 8 states have call predecessors, (16), 6 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-18 20:24:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 774 transitions. [2022-11-18 20:24:37,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-18 20:24:37,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:37,724 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:37,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:37,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:24:37,933 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:24:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash -739026692, now seen corresponding path program 1 times [2022-11-18 20:24:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:37,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093818299] [2022-11-18 20:24:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:37,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:24:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:24:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:24:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:24:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:24:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:24:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:24:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:24:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-18 20:24:39,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:39,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093818299] [2022-11-18 20:24:39,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093818299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:39,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:39,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:24:39,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694779248] [2022-11-18 20:24:39,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:39,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:24:39,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:39,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:24:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:24:39,244 INFO L87 Difference]: Start difference. First operand 547 states and 774 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:24:41,306 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 [] [2022-11-18 20:24:50,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:50,623 INFO L93 Difference]: Finished difference Result 1458 states and 2117 transitions. [2022-11-18 20:24:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:24:50,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 124 [2022-11-18 20:24:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:50,630 INFO L225 Difference]: With dead ends: 1458 [2022-11-18 20:24:50,630 INFO L226 Difference]: Without dead ends: 895 [2022-11-18 20:24:50,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:24:50,634 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 446 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 269 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:50,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1042 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1413 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-18 20:24:50,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-11-18 20:24:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 749. [2022-11-18 20:24:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 534 states have (on average 1.2790262172284643) internal successors, (683), 537 states have internal predecessors, (683), 156 states have call successors, (156), 37 states have call predecessors, (156), 55 states have return successors, (227), 174 states have call predecessors, (227), 153 states have call successors, (227) [2022-11-18 20:24:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1066 transitions. [2022-11-18 20:24:50,788 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1066 transitions. Word has length 124 [2022-11-18 20:24:50,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:50,788 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1066 transitions. [2022-11-18 20:24:50,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:24:50,789 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1066 transitions. [2022-11-18 20:24:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 20:24:50,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:50,791 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:50,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:24:50,791 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:24:50,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:50,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1299433749, now seen corresponding path program 1 times [2022-11-18 20:24:50,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:50,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86851505] [2022-11-18 20:24:50,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:50,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:24:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:24:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:24:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:54,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:24:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 20:24:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 20:24:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-18 20:24:54,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:54,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86851505] [2022-11-18 20:24:54,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86851505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:54,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566013662] [2022-11-18 20:24:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:54,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:54,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:54,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:54,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78aff71-ce79-47b7-98b1-f81b233e62cd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:24:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 20:24:55,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:24:57,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:24:57,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:24:57,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:24:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:25:23,679 WARN L233 SmtUtils]: Spent 26.59s on a formula simplification. DAG size of input: 228 DAG size of output: 78 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 20:25:23,680 INFO L321 Elim1Store]: treesize reduction 981, result has 23.3 percent of original size [2022-11-18 20:25:23,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 1110 treesize of output 2801 [2022-11-18 20:25:24,111 INFO L350 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 25 treesize of output 22 [2022-11-18 20:25:24,811 INFO L350 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 25 treesize of output 22 [2022-11-18 20:25:26,364 INFO L350 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 25 treesize of output 22 [2022-11-18 20:25:27,527 INFO L350 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 25 treesize of output 22 [2022-11-18 20:25:28,514 INFO L350 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 25 treesize of output 22 [2022-11-18 20:25:29,629 INFO L350 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 25 treesize of output 22 [2022-11-18 20:25:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:25:37,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:25:37,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:37,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:38,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:39,831 INFO L217 Elim1Store]: Index analysis took 2398 ms [2022-11-18 20:25:39,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 2900 [2022-11-18 20:25:41,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:25:41,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:25:41,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:25:44,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:44,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:45,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:45,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:45,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:45,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:45,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:46,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:46,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:46,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:48,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:49,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:50,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:51,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:51,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:53,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:53,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:25:54,093 INFO L217 Elim1Store]: Index analysis took 12965 ms [2022-11-18 20:25:58,398 INFO L321 Elim1Store]: treesize reduction 440, result has 5.4 percent of original size [2022-11-18 20:25:58,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 36 case distinctions, treesize of input 571 treesize of output 3045 [2022-11-18 20:26:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:26:07,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:26:07,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:26:07,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:08,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:08,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:09,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:10,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:10,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:10,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:10,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:10,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:10,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:11,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:12,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:12,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:12,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:12,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:12,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:12,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:13,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:13,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:13,539 INFO L217 Elim1Store]: Index analysis took 6060 ms [2022-11-18 20:26:14,154 INFO L321 Elim1Store]: treesize reduction 225, result has 3.4 percent of original size [2022-11-18 20:26:14,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 507 treesize of output 2967 [2022-11-18 20:26:17,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:26:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:26:18,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:26:25,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:31,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:31,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:35,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:38,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:40,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:41,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:42,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:43,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:43,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:44,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:45,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:50,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:52,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:52,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:53,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:53,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:54,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:59,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:59,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:59,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:59,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:26:59,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:27:04,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:27:04,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:27:04,767 INFO L217 Elim1Store]: Index analysis took 47234 ms [2022-11-18 20:27:12,565 WARN L233 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 109 DAG size of output: 21 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 20:27:12,567 INFO L321 Elim1Store]: treesize reduction 360, result has 6.5 percent of original size [2022-11-18 20:27:12,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 19 case distinctions, treesize of input 516 treesize of output 2992 [2022-11-18 20:29:04,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:04,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:04,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:04,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:05,508 INFO L217 Elim1Store]: Index analysis took 690 ms [2022-11-18 20:29:05,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2565 treesize of output 2687 [2022-11-18 20:29:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:06,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:06,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:06,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:07,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:07,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:07,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:29:10,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:29:10,327 INFO L217 Elim1Store]: Index analysis took 2471 ms [2022-11-18 20:29:12,701 INFO L321 Elim1Store]: treesize reduction 295, result has 10.1 percent of original size [2022-11-18 20:29:12,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 18 case distinctions, treesize of input 114888 treesize of output 111378 [2022-11-18 20:29:20,140 WARN L233 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 4684 DAG size of output: 4683 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-18 20:30:25,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:30:25,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:30:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:30:25,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:30:26,007 INFO L217 Elim1Store]: Index analysis took 512 ms [2022-11-18 20:30:28,374 INFO L321 Elim1Store]: treesize reduction 202, result has 14.0 percent of original size [2022-11-18 20:30:28,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 21318 treesize of output 21195