./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lazy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lazy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:25:36,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:25:36,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:25:37,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:25:37,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:25:37,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:25:37,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:25:37,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:25:37,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:25:37,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:25:37,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:25:37,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:25:37,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:25:37,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:25:37,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:25:37,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:25:37,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:25:37,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:25:37,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:25:37,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:25:37,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:25:37,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:25:37,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:25:37,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:25:37,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:25:37,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:25:37,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:25:37,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:25:37,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:25:37,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:25:37,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:25:37,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:25:37,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:25:37,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:25:37,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:25:37,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:25:37,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:25:37,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:25:37,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:25:37,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:25:37,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:25:37,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:25:37,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:25:37,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:25:37,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:25:37,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:25:37,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:25:37,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:25:37,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:25:37,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:25:37,076 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:25:37,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:25:37,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:25:37,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:25:37,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:25:37,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:25:37,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:25:37,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:25:37,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:25:37,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:25:37,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:25:37,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:25:37,079 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_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2021-12-07 01:25:37,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:25:37,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:25:37,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:25:37,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:25:37,269 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:25:37,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-pthread/cs_lazy.i [2021-12-07 01:25:37,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/data/317915169/911e9972c65c4af1ac6c2b95db70a54d/FLAGe2c141047 [2021-12-07 01:25:37,777 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:25:37,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/sv-benchmarks/c/seq-pthread/cs_lazy.i [2021-12-07 01:25:37,789 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/data/317915169/911e9972c65c4af1ac6c2b95db70a54d/FLAGe2c141047 [2021-12-07 01:25:37,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/data/317915169/911e9972c65c4af1ac6c2b95db70a54d [2021-12-07 01:25:37,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:25:37,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:25:37,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:25:37,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:25:37,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:25:37,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:25:37" (1/1) ... [2021-12-07 01:25:37,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b5172e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:37, skipping insertion in model container [2021-12-07 01:25:37,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:25:37" (1/1) ... [2021-12-07 01:25:37,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:25:37,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:25:38,019 WARN L230 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_5c17b701-9f55-4247-a95a-e9329f5510b3/sv-benchmarks/c/seq-pthread/cs_lazy.i[23394,23407] [2021-12-07 01:25:38,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:25:38,086 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:25:38,110 WARN L230 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_5c17b701-9f55-4247-a95a-e9329f5510b3/sv-benchmarks/c/seq-pthread/cs_lazy.i[23394,23407] [2021-12-07 01:25:38,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:25:38,169 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:25:38,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38 WrapperNode [2021-12-07 01:25:38,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:25:38,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:25:38,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:25:38,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:25:38,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,235 INFO L137 Inliner]: procedures = 145, calls = 212, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 514 [2021-12-07 01:25:38,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:25:38,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:25:38,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:25:38,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:25:38,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:25:38,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:25:38,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:25:38,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:25:38,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (1/1) ... [2021-12-07 01:25:38,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:25:38,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:38,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:38,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:25:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:25:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:25:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:25:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:25:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:25:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2021-12-07 01:25:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2021-12-07 01:25:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-12-07 01:25:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-12-07 01:25:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:25:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2021-12-07 01:25:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2021-12-07 01:25:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-07 01:25:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-07 01:25:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:25:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:25:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-12-07 01:25:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-12-07 01:25:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:25:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2021-12-07 01:25:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2021-12-07 01:25:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:25:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:25:38,452 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:25:38,453 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:25:38,707 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0 != ~__CS_ret~0 % 256;thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2021-12-07 01:25:38,707 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != ~__CS_ret~0 % 256); [2021-12-07 01:25:38,707 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != ~__CS_ret~0 % 256;thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2021-12-07 01:25:38,708 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0 != ~__CS_ret~0 % 256); [2021-12-07 01:25:38,708 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: SUMMARY for call __CS_cs(); srcloc: null [2021-12-07 01:25:38,708 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume 0 != ~__CS_ret~0 % 256;thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2021-12-07 01:25:38,708 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume !(0 != ~__CS_ret~0 % 256); [2021-12-07 01:25:40,913 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:25:40,921 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:25:40,921 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 01:25:40,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:40 BoogieIcfgContainer [2021-12-07 01:25:40,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:25:40,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:25:40,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:25:40,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:25:40,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:25:37" (1/3) ... [2021-12-07 01:25:40,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1081b8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:25:40, skipping insertion in model container [2021-12-07 01:25:40,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:38" (2/3) ... [2021-12-07 01:25:40,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1081b8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:25:40, skipping insertion in model container [2021-12-07 01:25:40,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:40" (3/3) ... [2021-12-07 01:25:40,929 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_lazy.i [2021-12-07 01:25:40,934 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:25:40,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:25:40,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:25:40,979 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:25:40,979 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:25:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 119 states have (on average 1.495798319327731) internal successors, (178), 120 states have internal predecessors, (178), 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) [2021-12-07 01:25:41,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-07 01:25:41,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:41,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:41,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:41,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1643557001, now seen corresponding path program 1 times [2021-12-07 01:25:41,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:41,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237181268] [2021-12-07 01:25:41,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:41,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:41,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:41,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237181268] [2021-12-07 01:25:41,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237181268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:41,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:41,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:25:41,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141867273] [2021-12-07 01:25:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:41,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:25:41,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:41,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:25:41,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:41,329 INFO L87 Difference]: Start difference. First operand has 164 states, 119 states have (on average 1.495798319327731) internal successors, (178), 120 states have internal predecessors, (178), 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, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:41,391 INFO L93 Difference]: Finished difference Result 331 states and 539 transitions. [2021-12-07 01:25:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:25:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-07 01:25:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:41,402 INFO L225 Difference]: With dead ends: 331 [2021-12-07 01:25:41,402 INFO L226 Difference]: Without dead ends: 165 [2021-12-07 01:25:41,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:41,410 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 5 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:41,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 464 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-12-07 01:25:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 161. [2021-12-07 01:25:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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) [2021-12-07 01:25:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 234 transitions. [2021-12-07 01:25:41,454 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 234 transitions. Word has length 34 [2021-12-07 01:25:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:41,454 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 234 transitions. [2021-12-07 01:25:41,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 234 transitions. [2021-12-07 01:25:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-07 01:25:41,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:41,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:41,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:25:41,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash -883018881, now seen corresponding path program 1 times [2021-12-07 01:25:41,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:41,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586347466] [2021-12-07 01:25:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:41,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:41,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:41,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586347466] [2021-12-07 01:25:41,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586347466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:41,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:41,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:25:41,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163695014] [2021-12-07 01:25:41,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:41,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:25:41,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:41,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:25:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:41,540 INFO L87 Difference]: Start difference. First operand 161 states and 234 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-12-07 01:25:41,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:41,578 INFO L93 Difference]: Finished difference Result 321 states and 468 transitions. [2021-12-07 01:25:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:25:41,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-12-07 01:25:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:41,583 INFO L225 Difference]: With dead ends: 321 [2021-12-07 01:25:41,583 INFO L226 Difference]: Without dead ends: 163 [2021-12-07 01:25:41,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:41,586 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:41,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 459 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-07 01:25:41,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 162. [2021-12-07 01:25:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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) [2021-12-07 01:25:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 235 transitions. [2021-12-07 01:25:41,605 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 235 transitions. Word has length 38 [2021-12-07 01:25:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:41,606 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 235 transitions. [2021-12-07 01:25:41,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-12-07 01:25:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 235 transitions. [2021-12-07 01:25:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-07 01:25:41,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:41,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:41,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:25:41,609 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:41,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash -786448707, now seen corresponding path program 1 times [2021-12-07 01:25:41,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:41,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801790489] [2021-12-07 01:25:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:41,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:41,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:41,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801790489] [2021-12-07 01:25:41,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801790489] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:41,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004248387] [2021-12-07 01:25:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:41,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:41,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:41,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:41,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:25:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:41,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:25:41,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:42,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:42,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004248387] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:42,104 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:42,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-07 01:25:42,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203370227] [2021-12-07 01:25:42,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:42,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:25:42,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:42,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:25:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:25:42,107 INFO L87 Difference]: Start difference. First operand 162 states and 235 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-12-07 01:25:42,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:42,156 INFO L93 Difference]: Finished difference Result 327 states and 476 transitions. [2021-12-07 01:25:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:25:42,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 40 [2021-12-07 01:25:42,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:42,160 INFO L225 Difference]: With dead ends: 327 [2021-12-07 01:25:42,160 INFO L226 Difference]: Without dead ends: 168 [2021-12-07 01:25:42,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:25:42,163 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 6 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:42,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 687 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-12-07 01:25:42,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-12-07 01:25:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 124 states have (on average 1.346774193548387) internal successors, (167), 124 states have internal predecessors, (167), 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) [2021-12-07 01:25:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 241 transitions. [2021-12-07 01:25:42,180 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 241 transitions. Word has length 40 [2021-12-07 01:25:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 241 transitions. [2021-12-07 01:25:42,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-12-07 01:25:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 241 transitions. [2021-12-07 01:25:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-07 01:25:42,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:42,183 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:42,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:42,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:42,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:42,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:42,387 INFO L85 PathProgramCache]: Analyzing trace with hash 386454391, now seen corresponding path program 2 times [2021-12-07 01:25:42,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:42,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480672409] [2021-12-07 01:25:42,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:42,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-07 01:25:42,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480672409] [2021-12-07 01:25:42,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480672409] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902565570] [2021-12-07 01:25:42,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:25:42,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:42,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:42,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:42,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:25:42,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 01:25:42,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:25:42,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:25:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-07 01:25:42,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:25:42,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902565570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:42,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:25:42,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-07 01:25:42,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535829499] [2021-12-07 01:25:42,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:42,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:25:43,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:43,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:25:43,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:25:43,000 INFO L87 Difference]: Start difference. First operand 168 states and 241 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-12-07 01:25:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:43,030 INFO L93 Difference]: Finished difference Result 318 states and 470 transitions. [2021-12-07 01:25:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:25:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 46 [2021-12-07 01:25:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:43,035 INFO L225 Difference]: With dead ends: 318 [2021-12-07 01:25:43,035 INFO L226 Difference]: Without dead ends: 292 [2021-12-07 01:25:43,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:25:43,036 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 190 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:43,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 807 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-12-07 01:25:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2021-12-07 01:25:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 205 states have (on average 1.395121951219512) internal successors, (286), 205 states have internal predecessors, (286), 73 states have call successors, (73), 12 states have call predecessors, (73), 12 states have return successors, (82), 73 states have call predecessors, (82), 73 states have call successors, (82) [2021-12-07 01:25:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 441 transitions. [2021-12-07 01:25:43,065 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 441 transitions. Word has length 46 [2021-12-07 01:25:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:43,065 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 441 transitions. [2021-12-07 01:25:43,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-12-07 01:25:43,065 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 441 transitions. [2021-12-07 01:25:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-07 01:25:43,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:43,068 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:43,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:25:43,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:43,269 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash -413357882, now seen corresponding path program 1 times [2021-12-07 01:25:43,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:43,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157868573] [2021-12-07 01:25:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:43,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-07 01:25:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:25:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:25:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:25:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:25:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,491 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 01:25:43,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:43,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157868573] [2021-12-07 01:25:43,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157868573] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:43,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891965019] [2021-12-07 01:25:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:43,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:43,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:25:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:25:43,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:43,853 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 01:25:43,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 01:25:43,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891965019] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:43,942 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:43,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 8 [2021-12-07 01:25:43,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444558488] [2021-12-07 01:25:43,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:43,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:25:43,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:43,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:25:43,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:25:43,943 INFO L87 Difference]: Start difference. First operand 291 states and 441 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 01:25:45,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:25:47,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:25:48,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:48,289 INFO L93 Difference]: Finished difference Result 589 states and 899 transitions. [2021-12-07 01:25:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:25:48,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2021-12-07 01:25:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:48,299 INFO L225 Difference]: With dead ends: 589 [2021-12-07 01:25:48,299 INFO L226 Difference]: Without dead ends: 313 [2021-12-07 01:25:48,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:25:48,302 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 79 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 114 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:48,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 786 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 279 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-07 01:25:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-12-07 01:25:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2021-12-07 01:25:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 219 states have (on average 1.3744292237442923) internal successors, (301), 221 states have internal predecessors, (301), 73 states have call successors, (73), 12 states have call predecessors, (73), 14 states have return successors, (88), 73 states have call predecessors, (88), 73 states have call successors, (88) [2021-12-07 01:25:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 462 transitions. [2021-12-07 01:25:48,334 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 462 transitions. Word has length 91 [2021-12-07 01:25:48,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:48,334 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 462 transitions. [2021-12-07 01:25:48,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 01:25:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 462 transitions. [2021-12-07 01:25:48,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-07 01:25:48,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:48,339 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:48,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 01:25:48,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:48,540 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:48,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1310826886, now seen corresponding path program 2 times [2021-12-07 01:25:48,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:48,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575978733] [2021-12-07 01:25:48,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:48,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:48,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 01:25:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:48,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:25:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:25:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:25:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:48,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:25:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-07 01:25:48,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:48,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575978733] [2021-12-07 01:25:48,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575978733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:48,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:48,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:25:48,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954012905] [2021-12-07 01:25:48,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:48,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:25:48,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:25:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:25:48,894 INFO L87 Difference]: Start difference. First operand 307 states and 462 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:25:49,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:25:51,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:25:53,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:25:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:54,933 INFO L93 Difference]: Finished difference Result 634 states and 980 transitions. [2021-12-07 01:25:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:25:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2021-12-07 01:25:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:54,940 INFO L225 Difference]: With dead ends: 634 [2021-12-07 01:25:54,940 INFO L226 Difference]: Without dead ends: 608 [2021-12-07 01:25:54,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:25:54,942 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 331 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 205 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:54,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 778 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-12-07 01:25:54,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-12-07 01:25:54,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 567. [2021-12-07 01:25:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 390 states have (on average 1.4076923076923078) internal successors, (549), 397 states have internal predecessors, (549), 145 states have call successors, (145), 24 states have call predecessors, (145), 31 states have return successors, (201), 145 states have call predecessors, (201), 145 states have call successors, (201) [2021-12-07 01:25:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 895 transitions. [2021-12-07 01:25:54,993 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 895 transitions. Word has length 103 [2021-12-07 01:25:54,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:54,993 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 895 transitions. [2021-12-07 01:25:54,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:25:54,994 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 895 transitions. [2021-12-07 01:25:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-07 01:25:54,998 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:54,998 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:54,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:25:54,998 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:54,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash 2058851120, now seen corresponding path program 1 times [2021-12-07 01:25:54,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:54,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286598865] [2021-12-07 01:25:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:54,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:55,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 01:25:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:25:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:55,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:25:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:55,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:25:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:25:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-07 01:25:55,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:55,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286598865] [2021-12-07 01:25:55,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286598865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:55,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:55,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:25:55,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626431137] [2021-12-07 01:25:55,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:55,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:25:55,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:25:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:25:55,228 INFO L87 Difference]: Start difference. First operand 567 states and 895 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:25:56,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:25:59,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:00,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:00,131 INFO L93 Difference]: Finished difference Result 1105 states and 1722 transitions. [2021-12-07 01:26:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:26:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2021-12-07 01:26:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:00,136 INFO L225 Difference]: With dead ends: 1105 [2021-12-07 01:26:00,136 INFO L226 Difference]: Without dead ends: 608 [2021-12-07 01:26:00,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:26:00,139 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 366 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 265 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:00,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 778 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-12-07 01:26:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-12-07 01:26:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 570. [2021-12-07 01:26:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 392 states have (on average 1.405612244897959) internal successors, (551), 400 states have internal predecessors, (551), 145 states have call successors, (145), 24 states have call predecessors, (145), 32 states have return successors, (198), 145 states have call predecessors, (198), 145 states have call successors, (198) [2021-12-07 01:26:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 894 transitions. [2021-12-07 01:26:00,169 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 894 transitions. Word has length 103 [2021-12-07 01:26:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:00,169 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 894 transitions. [2021-12-07 01:26:00,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:26:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 894 transitions. [2021-12-07 01:26:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-07 01:26:00,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:00,172 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:00,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:26:00,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:00,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1861347046, now seen corresponding path program 1 times [2021-12-07 01:26:00,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:00,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606791084] [2021-12-07 01:26:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:00,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 01:26:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:26:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:26:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:26:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:26:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:00,380 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-07 01:26:00,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:00,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606791084] [2021-12-07 01:26:00,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606791084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:26:00,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:26:00,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:26:00,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374195893] [2021-12-07 01:26:00,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:26:00,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:26:00,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:00,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:26:00,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:26:00,381 INFO L87 Difference]: Start difference. First operand 570 states and 894 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:26:02,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:03,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:03,042 INFO L93 Difference]: Finished difference Result 1128 states and 1755 transitions. [2021-12-07 01:26:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:26:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2021-12-07 01:26:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:03,046 INFO L225 Difference]: With dead ends: 1128 [2021-12-07 01:26:03,046 INFO L226 Difference]: Without dead ends: 565 [2021-12-07 01:26:03,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:26:03,050 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 302 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:03,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 852 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 616 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-12-07 01:26:03,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2021-12-07 01:26:03,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 527. [2021-12-07 01:26:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 370 states have (on average 1.3837837837837839) internal successors, (512), 375 states have internal predecessors, (512), 125 states have call successors, (125), 23 states have call predecessors, (125), 31 states have return successors, (166), 128 states have call predecessors, (166), 125 states have call successors, (166) [2021-12-07 01:26:03,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 803 transitions. [2021-12-07 01:26:03,076 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 803 transitions. Word has length 103 [2021-12-07 01:26:03,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:03,076 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 803 transitions. [2021-12-07 01:26:03,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:26:03,077 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 803 transitions. [2021-12-07 01:26:03,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-07 01:26:03,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:03,079 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:03,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:26:03,080 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:03,080 INFO L85 PathProgramCache]: Analyzing trace with hash 544197250, now seen corresponding path program 1 times [2021-12-07 01:26:03,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:03,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249799075] [2021-12-07 01:26:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:03,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:03,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:26:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:26:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 01:26:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:26:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-07 01:26:03,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:03,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249799075] [2021-12-07 01:26:03,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249799075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:26:03,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:26:03,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:26:03,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765682594] [2021-12-07 01:26:03,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:26:03,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:26:03,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:03,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:26:03,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:26:03,272 INFO L87 Difference]: Start difference. First operand 527 states and 803 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:26:05,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:07,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:08,151 INFO L93 Difference]: Finished difference Result 897 states and 1333 transitions. [2021-12-07 01:26:08,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:26:08,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2021-12-07 01:26:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:08,155 INFO L225 Difference]: With dead ends: 897 [2021-12-07 01:26:08,155 INFO L226 Difference]: Without dead ends: 533 [2021-12-07 01:26:08,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:26:08,158 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 284 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 113 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:08,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 961 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 591 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-12-07 01:26:08,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-12-07 01:26:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 489. [2021-12-07 01:26:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 347 states have (on average 1.3688760806916427) internal successors, (475), 354 states have internal predecessors, (475), 110 states have call successors, (110), 23 states have call predecessors, (110), 31 states have return successors, (149), 111 states have call predecessors, (149), 110 states have call successors, (149) [2021-12-07 01:26:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 734 transitions. [2021-12-07 01:26:08,183 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 734 transitions. Word has length 103 [2021-12-07 01:26:08,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:08,184 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 734 transitions. [2021-12-07 01:26:08,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:26:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 734 transitions. [2021-12-07 01:26:08,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-07 01:26:08,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:08,186 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:08,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:26:08,187 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:08,187 INFO L85 PathProgramCache]: Analyzing trace with hash -689449485, now seen corresponding path program 1 times [2021-12-07 01:26:08,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:08,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76765715] [2021-12-07 01:26:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:08,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 01:26:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:26:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:26:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 01:26:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 01:26:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-07 01:26:10,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:10,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76765715] [2021-12-07 01:26:10,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76765715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:26:10,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:26:10,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:26:10,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660867835] [2021-12-07 01:26:10,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:26:10,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:26:10,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:10,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:26:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:26:10,263 INFO L87 Difference]: Start difference. First operand 489 states and 734 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 01:26:12,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:12,772 INFO L93 Difference]: Finished difference Result 740 states and 1085 transitions. [2021-12-07 01:26:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:26:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 117 [2021-12-07 01:26:12,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:12,775 INFO L225 Difference]: With dead ends: 740 [2021-12-07 01:26:12,776 INFO L226 Difference]: Without dead ends: 507 [2021-12-07 01:26:12,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:26:12,777 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 106 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 162 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:12,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 890 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-12-07 01:26:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-12-07 01:26:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 493. [2021-12-07 01:26:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 351 states have (on average 1.3675213675213675) internal successors, (480), 358 states have internal predecessors, (480), 110 states have call successors, (110), 23 states have call predecessors, (110), 31 states have return successors, (149), 111 states have call predecessors, (149), 110 states have call successors, (149) [2021-12-07 01:26:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 739 transitions. [2021-12-07 01:26:12,802 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 739 transitions. Word has length 117 [2021-12-07 01:26:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:12,802 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 739 transitions. [2021-12-07 01:26:12,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 01:26:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 739 transitions. [2021-12-07 01:26:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-07 01:26:12,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:12,804 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:12,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:26:12,805 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:12,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:12,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1402171026, now seen corresponding path program 1 times [2021-12-07 01:26:12,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:12,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744588342] [2021-12-07 01:26:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:12,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 01:26:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 01:26:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:26:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:26:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 01:26:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 01:26:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-12-07 01:26:13,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:13,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744588342] [2021-12-07 01:26:13,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744588342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:26:13,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:26:13,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:26:13,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550296101] [2021-12-07 01:26:13,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:26:13,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:26:13,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:13,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:26:13,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:26:13,921 INFO L87 Difference]: Start difference. First operand 493 states and 739 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 01:26:16,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:16,441 INFO L93 Difference]: Finished difference Result 769 states and 1126 transitions. [2021-12-07 01:26:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:26:16,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 137 [2021-12-07 01:26:16,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:16,445 INFO L225 Difference]: With dead ends: 769 [2021-12-07 01:26:16,445 INFO L226 Difference]: Without dead ends: 504 [2021-12-07 01:26:16,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:26:16,447 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 40 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:16,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 1022 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 640 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-12-07 01:26:16,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-12-07 01:26:16,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 491. [2021-12-07 01:26:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 349 states have (on average 1.3667621776504297) internal successors, (477), 356 states have internal predecessors, (477), 110 states have call successors, (110), 23 states have call predecessors, (110), 31 states have return successors, (149), 111 states have call predecessors, (149), 110 states have call successors, (149) [2021-12-07 01:26:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 736 transitions. [2021-12-07 01:26:16,470 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 736 transitions. Word has length 137 [2021-12-07 01:26:16,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:16,470 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 736 transitions. [2021-12-07 01:26:16,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 01:26:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 736 transitions. [2021-12-07 01:26:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-07 01:26:16,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:16,472 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:16,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:26:16,473 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash 359767575, now seen corresponding path program 1 times [2021-12-07 01:26:16,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:16,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082369079] [2021-12-07 01:26:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:16,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:26:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 01:26:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:26:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:26:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 01:26:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 01:26:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-12-07 01:26:16,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:16,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082369079] [2021-12-07 01:26:16,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082369079] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:26:16,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009871320] [2021-12-07 01:26:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:16,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:16,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:26:16,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:26:16,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:26:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:17,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-07 01:26:17,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:26:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-07 01:26:17,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:26:17,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009871320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:26:17,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:26:17,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2021-12-07 01:26:17,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141172519] [2021-12-07 01:26:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:26:17,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:26:17,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:17,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:26:17,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:26:17,359 INFO L87 Difference]: Start difference. First operand 491 states and 736 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 01:26:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:17,693 INFO L93 Difference]: Finished difference Result 1207 states and 1913 transitions. [2021-12-07 01:26:17,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:26:17,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 135 [2021-12-07 01:26:17,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:17,699 INFO L225 Difference]: With dead ends: 1207 [2021-12-07 01:26:17,700 INFO L226 Difference]: Without dead ends: 746 [2021-12-07 01:26:17,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2021-12-07 01:26:17,703 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 322 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:17,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 563 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:26:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-12-07 01:26:17,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 694. [2021-12-07 01:26:17,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 513 states have (on average 1.2553606237816763) internal successors, (644), 462 states have internal predecessors, (644), 129 states have call successors, (129), 27 states have call predecessors, (129), 51 states have return successors, (278), 204 states have call predecessors, (278), 129 states have call successors, (278) [2021-12-07 01:26:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1051 transitions. [2021-12-07 01:26:17,738 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1051 transitions. Word has length 135 [2021-12-07 01:26:17,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:17,738 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1051 transitions. [2021-12-07 01:26:17,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 01:26:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1051 transitions. [2021-12-07 01:26:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-07 01:26:17,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:17,742 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:17,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 01:26:17,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-07 01:26:17,943 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:17,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash -462837888, now seen corresponding path program 1 times [2021-12-07 01:26:17,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:17,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214693222] [2021-12-07 01:26:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:17,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:26:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 01:26:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:26:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 01:26:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-07 01:26:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-12-07 01:26:19,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:19,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214693222] [2021-12-07 01:26:19,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214693222] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:26:19,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514086703] [2021-12-07 01:26:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:19,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:19,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:26:19,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:26:19,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:26:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:19,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 104 conjunts are in the unsatisfiable core [2021-12-07 01:26:19,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:26:19,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-12-07 01:26:19,890 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-12-07 01:26:19,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 41 [2021-12-07 01:26:20,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:20,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-12-07 01:26:20,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:26:20,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:20,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2021-12-07 01:26:21,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-12-07 01:26:21,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:26:21,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-12-07 01:26:21,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,252 INFO L354 Elim1Store]: treesize reduction 114, result has 31.3 percent of original size [2021-12-07 01:26:21,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 2496 treesize of output 894 [2021-12-07 01:26:21,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:21,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 20 [2021-12-07 01:26:21,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-07 01:26:21,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-07 01:26:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 33 proven. 53 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-07 01:26:21,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:26:22,118 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7135 (Array Int Int)) (|~#mutex~0.offset| Int) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7126 Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store |c_#memory_int| |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:22,154 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (|~#mutex~0.offset| Int) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7126 Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|)) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:22,197 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (|~#mutex~0.offset| Int) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int)) (v_ArrVal_7126 Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:22,230 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_7126 Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:22,272 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_7126 Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int)) (v_ArrVal_7112 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:22,315 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_7126 Int) (v_ArrVal_7110 (Array Int Int)) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int)) (v_ArrVal_7112 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (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_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:22,390 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_15| Int)) (or (forall ((|~#mutex~0.offset| Int) (v_ArrVal_7126 Int) (v_ArrVal_7110 (Array Int Int)) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int)) (v_ArrVal_7112 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (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_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |v_ULTIMATE.start_main_~i~0#1_15|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_15|))) is different from false [2021-12-07 01:26:22,452 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_7126 Int) (v_ArrVal_7110 (Array Int Int)) (|v_ULTIMATE.start_main_#t~nondet46#1_11| Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7112 (Array Int Int)) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_15| Int) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int)) (v_ArrVal_7109 (Array Int Int))) (or (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|)) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7109) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |v_ULTIMATE.start_main_~i~0#1_15|) |v_ULTIMATE.start_main_#t~nondet46#1_11|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_15|))) is different from false [2021-12-07 01:26:22,618 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_7126 Int) (v_ArrVal_7110 (Array Int Int)) (|v_ULTIMATE.start_main_#t~nondet46#1_11| Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7132 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7112 (Array Int Int)) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7103 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_15| Int) (v_ArrVal_7104 (Array Int Int)) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7117 (Array Int Int)) (v_ArrVal_7109 (Array Int Int))) (or (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store (store (store (store (store (store (store (store (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7103) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7104))) (store .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7109) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |v_ULTIMATE.start_main_~i~0#1_15|) |v_ULTIMATE.start_main_#t~nondet46#1_11|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_15|))) is different from false [2021-12-07 01:26:22,772 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7126 Int) (v_ArrVal_7110 (Array Int Int)) (|v_ULTIMATE.start_main_#t~nondet46#1_11| Int) (v_ArrVal_7132 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7112 (Array Int Int)) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_15| Int) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7117 (Array Int Int)) (|~#mutex~0.offset| Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7101 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7103 (Array Int Int)) (v_ArrVal_7102 (Array Int Int)) (v_ArrVal_7104 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7109 (Array Int Int))) (or (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store (store (store (store (store (store (store (store (let ((.cse2 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7101) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7102) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7103) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7104))) (store .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7109) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |v_ULTIMATE.start_main_~i~0#1_15|) |v_ULTIMATE.start_main_#t~nondet46#1_11|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_15|))) is different from false [2021-12-07 01:26:22,919 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7126 Int) (v_ArrVal_7099 (Array Int Int)) (v_ArrVal_7110 (Array Int Int)) (|v_ULTIMATE.start_main_#t~nondet46#1_11| Int) (v_ArrVal_7132 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7112 (Array Int Int)) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_15| Int) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7117 (Array Int Int)) (|~#mutex~0.offset| Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7101 (Array Int Int)) (v_ArrVal_7100 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7103 (Array Int Int)) (v_ArrVal_7102 (Array Int Int)) (v_ArrVal_7104 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7109 (Array Int Int))) (or (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store (store (store (store (store (store (store (store (let ((.cse2 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7100) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7099) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7101) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7102) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7103) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7104))) (store .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7109) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |v_ULTIMATE.start_main_~i~0#1_15|) |v_ULTIMATE.start_main_#t~nondet46#1_11|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_15|))) is different from false [2021-12-07 01:26:23,072 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7126 Int) (v_ArrVal_7097 (Array Int Int)) (v_ArrVal_7099 (Array Int Int)) (v_ArrVal_7110 (Array Int Int)) (|v_ULTIMATE.start_main_#t~nondet46#1_11| Int) (v_ArrVal_7132 (Array Int Int)) (v_ArrVal_7098 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet46#1| Int) (v_ArrVal_7112 (Array Int Int)) (v_ArrVal_7111 (Array Int Int)) (v_ArrVal_7114 (Array Int Int)) (v_ArrVal_7113 (Array Int Int)) (v_ArrVal_7135 (Array Int Int)) (v_ArrVal_7116 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_15| Int) (v_ArrVal_7115 (Array Int Int)) (v_ArrVal_7137 (Array Int Int)) (v_ArrVal_7117 (Array Int Int)) (|~#mutex~0.offset| Int) (v_ArrVal_7143 (Array Int Int)) (v_ArrVal_7101 (Array Int Int)) (v_ArrVal_7100 (Array Int Int)) (v_ArrVal_7122 (Array Int Int)) (v_ArrVal_7103 (Array Int Int)) (v_ArrVal_7102 (Array Int Int)) (v_ArrVal_7104 (Array Int Int)) (v_ArrVal_7129 (Array Int Int)) (v_ArrVal_7109 (Array Int Int))) (or (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (let ((.cse1 (store (store (store (store (store (store (store (store (store (let ((.cse2 (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_7098) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7097) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7100) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7099) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7101) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7102) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7103) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7104))) (store .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~nondet46#1|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7109) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7111) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7110) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7112) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7113) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7114) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7115) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_7117) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_7116))) (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|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| |v_ULTIMATE.start_main_~i~0#1_15|) |v_ULTIMATE.start_main_#t~nondet46#1_11|))) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_7122) |c_~#__CS_thread_status~0.base| v_ArrVal_7143) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_7132))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_7129) |c_~#__CS_thread_born_round~0.base| v_ArrVal_7137) |c_~#__CS_thread_status~0.base| v_ArrVal_7135) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_7126) (+ 3 |c_~#__CS_thread_allocated~0.offset|)) 256) 1)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_15|))) is different from false [2021-12-07 01:26:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 78 not checked. [2021-12-07 01:26:23,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514086703] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:26:23,934 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:26:23,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 18] total 36 [2021-12-07 01:26:23,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350680808] [2021-12-07 01:26:23,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:26:23,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-07 01:26:23,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:23,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-07 01:26:23,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=465, Unknown=12, NotChecked=660, Total=1260 [2021-12-07 01:26:23,936 INFO L87 Difference]: Start difference. First operand 694 states and 1051 transitions. Second operand has 36 states, 36 states have (on average 5.277777777777778) internal successors, (190), 32 states have internal predecessors, (190), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2021-12-07 01:26:27,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:30,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:30,749 INFO L93 Difference]: Finished difference Result 2670 states and 3966 transitions. [2021-12-07 01:26:30,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 01:26:30,749 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.277777777777778) internal successors, (190), 32 states have internal predecessors, (190), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 136 [2021-12-07 01:26:30,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:30,761 INFO L225 Difference]: With dead ends: 2670 [2021-12-07 01:26:30,761 INFO L226 Difference]: Without dead ends: 2036 [2021-12-07 01:26:30,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 290 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=545, Invalid=2644, Unknown=51, NotChecked=1452, Total=4692 [2021-12-07 01:26:30,766 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 1099 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 10834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 7645 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:30,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2600 Invalid, 10834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 2546 Invalid, 1 Unknown, 7645 Unchecked, 4.3s Time] [2021-12-07 01:26:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2021-12-07 01:26:30,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1868. [2021-12-07 01:26:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1379 states have (on average 1.2364031907179116) internal successors, (1705), 1244 states have internal predecessors, (1705), 341 states have call successors, (341), 74 states have call predecessors, (341), 147 states have return successors, (803), 549 states have call predecessors, (803), 341 states have call successors, (803) [2021-12-07 01:26:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2849 transitions. [2021-12-07 01:26:30,863 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2849 transitions. Word has length 136 [2021-12-07 01:26:30,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:30,863 INFO L470 AbstractCegarLoop]: Abstraction has 1868 states and 2849 transitions. [2021-12-07 01:26:30,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.277777777777778) internal successors, (190), 32 states have internal predecessors, (190), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2021-12-07 01:26:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2849 transitions. [2021-12-07 01:26:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-07 01:26:30,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:30,869 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:30,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 01:26:31,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-07 01:26:31,070 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash 741933792, now seen corresponding path program 1 times [2021-12-07 01:26:31,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:31,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220880076] [2021-12-07 01:26:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:31,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:26:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 01:26:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:26:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 01:26:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-07 01:26:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-12-07 01:26:32,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:32,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220880076] [2021-12-07 01:26:32,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220880076] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:26:32,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040283715] [2021-12-07 01:26:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:32,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:32,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:26:32,413 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:26:32,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 01:26:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:32,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-07 01:26:32,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:26:32,872 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-12-07 01:26:32,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:32,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:33,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:33,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:34,034 INFO L354 Elim1Store]: treesize reduction 114, result has 31.3 percent of original size [2021-12-07 01:26:34,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 624 treesize of output 270 [2021-12-07 01:26:34,055 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-07 01:26:34,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 16 treesize of output 20 [2021-12-07 01:26:34,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-07 01:26:34,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:26:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 33 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-07 01:26:34,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:26:34,620 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8072 Int) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8075 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store |c_#memory_int| |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,650 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8072 Int) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8075 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,683 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int)) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,711 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int)) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,741 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int)) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,775 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (v_ArrVal_8059 (Array Int Int)) (v_ArrVal_8058 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int)) (not (= 1 (mod (select (store (select (store (store (store (let ((.cse0 (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_8058) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8059) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256)))) is different from false [2021-12-07 01:26:34,827 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8056 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (v_ArrVal_8059 (Array Int Int)) (v_ArrVal_8057 (Array Int Int)) (v_ArrVal_8058 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int)) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8056) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8057) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8058) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8059) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,885 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8055 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8056 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8054 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (v_ArrVal_8059 (Array Int Int)) (v_ArrVal_8057 (Array Int Int)) (v_ArrVal_8058 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int)) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (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_8054) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8055) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8056) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8057) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8058) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8059) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:34,935 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int) (|~#mutex~0.offset| Int) (v_ArrVal_8052 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8055 (Array Int Int)) (v_ArrVal_8056 (Array Int Int)) (v_ArrVal_8053 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8054 (Array Int Int)) (v_ArrVal_8059 (Array Int Int)) (v_ArrVal_8057 (Array Int Int)) (v_ArrVal_8058 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (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_8052) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8053) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8054) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8055) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8056) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8057) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8058) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8059) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:35,007 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int) (|~#mutex~0.offset| Int) (v_ArrVal_8051 (Array Int Int)) (v_ArrVal_8052 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8050 (Array Int Int)) (v_ArrVal_8055 (Array Int Int)) (v_ArrVal_8056 (Array Int Int)) (v_ArrVal_8053 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8054 (Array Int Int)) (v_ArrVal_8059 (Array Int Int)) (v_ArrVal_8057 (Array Int Int)) (v_ArrVal_8058 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store (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_8050) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8051) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8052) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8053) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8054) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8055) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8056) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8057) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8058) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8059) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:35,104 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8080 (Array Int Int)) (v_ArrVal_8062 (Array Int Int)) (v_ArrVal_8063 (Array Int Int)) (v_ArrVal_8060 (Array Int Int)) (v_ArrVal_8082 (Array Int Int)) (v_ArrVal_8061 (Array Int Int)) (v_ArrVal_8066 (Array Int Int)) (v_ArrVal_8067 (Array Int Int)) (v_ArrVal_8064 (Array Int Int)) (v_ArrVal_8065 (Array Int Int)) (v_ArrVal_8048 (Array Int Int)) (v_ArrVal_8049 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_8072 Int) (|~#mutex~0.offset| Int) (v_ArrVal_8051 (Array Int Int)) (v_ArrVal_8052 (Array Int Int)) (v_ArrVal_8074 (Array Int Int)) (v_ArrVal_8071 (Array Int Int)) (v_ArrVal_8050 (Array Int Int)) (v_ArrVal_8055 (Array Int Int)) (v_ArrVal_8056 (Array Int Int)) (v_ArrVal_8053 (Array Int Int)) (v_ArrVal_8075 (Array Int Int)) (v_ArrVal_8054 (Array Int Int)) (v_ArrVal_8059 (Array Int Int)) (v_ArrVal_8057 (Array Int Int)) (v_ArrVal_8058 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (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_8049) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8048) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8050) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8051) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8052) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8053) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8054) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8055) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8056) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8057) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8058) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8059) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8060) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8061) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8063) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8062) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8064) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8065) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_8067) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_8066) |c_~#__CS_thread_status~0.base| v_ArrVal_8071) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_8082))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_8080) |c_~#__CS_thread_born_round~0.base| v_ArrVal_8074) |c_~#__CS_thread_status~0.base| v_ArrVal_8075) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_8072) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2021-12-07 01:26:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 78 not checked. [2021-12-07 01:26:35,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040283715] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:26:35,730 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:26:35,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 17] total 34 [2021-12-07 01:26:35,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552477202] [2021-12-07 01:26:35,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:26:35,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-07 01:26:35,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-07 01:26:35,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=424, Unknown=11, NotChecked=572, Total=1122 [2021-12-07 01:26:35,732 INFO L87 Difference]: Start difference. First operand 1868 states and 2849 transitions. Second operand has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 30 states have internal predecessors, (183), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2021-12-07 01:26:37,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:39,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:44,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:46,642 INFO L93 Difference]: Finished difference Result 2990 states and 4307 transitions. [2021-12-07 01:26:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-07 01:26:46,642 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 30 states have internal predecessors, (183), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 136 [2021-12-07 01:26:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:46,652 INFO L225 Difference]: With dead ends: 2990 [2021-12-07 01:26:46,652 INFO L226 Difference]: Without dead ends: 1935 [2021-12-07 01:26:46,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 281 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=326, Invalid=1267, Unknown=11, NotChecked=946, Total=2550 [2021-12-07 01:26:46,657 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 660 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 370 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 7685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 4701 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:46,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 1773 Invalid, 7685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2612 Invalid, 2 Unknown, 4701 Unchecked, 10.3s Time] [2021-12-07 01:26:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2021-12-07 01:26:46,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 941. [2021-12-07 01:26:46,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 700 states have (on average 1.227142857142857) internal successors, (859), 632 states have internal predecessors, (859), 168 states have call successors, (168), 39 states have call predecessors, (168), 72 states have return successors, (383), 269 states have call predecessors, (383), 168 states have call successors, (383) [2021-12-07 01:26:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1410 transitions. [2021-12-07 01:26:46,727 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1410 transitions. Word has length 136 [2021-12-07 01:26:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:46,728 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 1410 transitions. [2021-12-07 01:26:46,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 30 states have internal predecessors, (183), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2021-12-07 01:26:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1410 transitions. [2021-12-07 01:26:46,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-07 01:26:46,731 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:46,731 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:46,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-07 01:26:46,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-07 01:26:46,932 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:46,932 INFO L85 PathProgramCache]: Analyzing trace with hash 924945984, now seen corresponding path program 1 times [2021-12-07 01:26:46,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:46,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776482894] [2021-12-07 01:26:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:46,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:26:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 01:26:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:26:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 01:26:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-07 01:26:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-12-07 01:26:48,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:48,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776482894] [2021-12-07 01:26:48,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776482894] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:26:48,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385803489] [2021-12-07 01:26:48,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:48,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:48,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:26:48,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:26:48,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 01:26:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:49,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 81 conjunts are in the unsatisfiable core [2021-12-07 01:26:49,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:26:49,205 INFO L354 Elim1Store]: treesize reduction 56, result has 30.9 percent of original size [2021-12-07 01:26:49,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 173 treesize of output 185 [2021-12-07 01:26:49,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:49,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:49,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:49,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:49,679 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-07 01:26:49,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 19 treesize of output 27 [2021-12-07 01:26:49,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:49,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:49,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:50,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:26:50,166 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-07 01:26:50,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2021-12-07 01:26:50,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:26:50,314 INFO L354 Elim1Store]: treesize reduction 114, result has 31.3 percent of original size [2021-12-07 01:26:50,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 2496 treesize of output 894 [2021-12-07 01:26:50,338 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-07 01:26:50,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 16 treesize of output 20 [2021-12-07 01:26:50,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-07 01:26:50,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:26:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 33 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-07 01:26:50,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:26:50,902 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9022 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store |c_#memory_int| |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:50,931 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:50,962 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:50,988 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:51,018 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:51,051 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9002 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_9003 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (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_9002) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9003) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:51,107 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9001 (Array Int Int)) (v_ArrVal_9002 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9000 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_9003 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9000) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9001) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9002) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9003) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:51,178 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9001 (Array Int Int)) (v_ArrVal_9002 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9000 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_9003 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (v_ArrVal_9013 Int) (v_ArrVal_8998 (Array Int Int)) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_8999 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (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_8998) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8999) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9000) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9001) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9002) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9003) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:51,225 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9001 (Array Int Int)) (v_ArrVal_9002 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9000 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_9003 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (v_ArrVal_9013 Int) (v_ArrVal_8998 (Array Int Int)) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_8999 (Array Int Int)) (v_ArrVal_8996 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_8997 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (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_8996) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8997) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8998) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8999) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9000) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9001) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9002) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9003) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:51,281 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9001 (Array Int Int)) (v_ArrVal_9002 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9000 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_8994 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_8995 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_9003 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (v_ArrVal_9013 Int) (v_ArrVal_8998 (Array Int Int)) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_8999 (Array Int Int)) (v_ArrVal_8996 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_8997 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= 1 (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store (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_8994) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8995) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8996) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8997) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8998) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8999) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9000) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9001) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9002) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9003) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256)))) is different from false [2021-12-07 01:26:51,346 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9010 (Array Int Int)) (v_ArrVal_9011 (Array Int Int)) (v_ArrVal_9016 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| Int) (|~#mutex~0.offset| Int) (v_ArrVal_9020 (Array Int Int)) (v_ArrVal_9001 (Array Int Int)) (v_ArrVal_9002 (Array Int Int)) (v_ArrVal_9024 (Array Int Int)) (v_ArrVal_9000 (Array Int Int)) (v_ArrVal_9022 (Array Int Int)) (v_ArrVal_8994 (Array Int Int)) (v_ArrVal_9005 (Array Int Int)) (v_ArrVal_8995 (Array Int Int)) (v_ArrVal_9006 (Array Int Int)) (v_ArrVal_9028 (Array Int Int)) (v_ArrVal_8992 (Array Int Int)) (v_ArrVal_9003 (Array Int Int)) (v_ArrVal_8993 (Array Int Int)) (v_ArrVal_9004 (Array Int Int)) (v_ArrVal_9013 Int) (v_ArrVal_8998 (Array Int Int)) (v_ArrVal_9009 (Array Int Int)) (v_ArrVal_8999 (Array Int Int)) (v_ArrVal_8996 (Array Int Int)) (v_ArrVal_9007 (Array Int Int)) (v_ArrVal_8997 (Array Int Int)) (v_ArrVal_9008 (Array Int Int))) (not (= (mod (select (store (select (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (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_8993) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8992) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8994) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8995) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8996) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8997) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_8998) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_8999) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9000) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9001) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9002) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9003) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9005) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9004) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9007) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9006) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_9008) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_9009) |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base| v_ArrVal_9010) |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base| v_ArrVal_9011) |c_~#__CS_thread_status~0.base| v_ArrVal_9028) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_9016))) (store .cse0 |c_~#mutex~0.base| (store (select .cse0 |c_~#mutex~0.base|) (+ |~#mutex~0.offset| 1) (select (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (+ |ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 1))))) |c_~#data~0.base| v_ArrVal_9022) |c_~#__CS_thread_born_round~0.base| v_ArrVal_9020) |c_~#__CS_thread_status~0.base| v_ArrVal_9024) |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| v_ArrVal_9013) (+ |c_~#__CS_thread_allocated~0.offset| 1)) 256) 1))) is different from false [2021-12-07 01:26:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 78 not checked. [2021-12-07 01:26:52,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385803489] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:26:52,009 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:26:52,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 17] total 34 [2021-12-07 01:26:52,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447881873] [2021-12-07 01:26:52,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:26:52,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-07 01:26:52,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-07 01:26:52,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=423, Unknown=12, NotChecked=572, Total=1122 [2021-12-07 01:26:52,011 INFO L87 Difference]: Start difference. First operand 941 states and 1410 transitions. Second operand has 34 states, 34 states have (on average 5.264705882352941) internal successors, (179), 30 states have internal predecessors, (179), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2021-12-07 01:26:54,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:26:55,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:55,899 INFO L93 Difference]: Finished difference Result 1485 states and 2126 transitions. [2021-12-07 01:26:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 01:26:55,900 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.264705882352941) internal successors, (179), 30 states have internal predecessors, (179), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 136 [2021-12-07 01:26:55,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:55,904 INFO L225 Difference]: With dead ends: 1485 [2021-12-07 01:26:55,904 INFO L226 Difference]: Without dead ends: 891 [2021-12-07 01:26:55,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=334, Invalid=1338, Unknown=12, NotChecked=968, Total=2652 [2021-12-07 01:26:55,907 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 636 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 454 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 6185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 4030 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:55,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 1518 Invalid, 6185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 1700 Invalid, 1 Unknown, 4030 Unchecked, 3.2s Time] [2021-12-07 01:26:55,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-12-07 01:26:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 836. [2021-12-07 01:26:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 618 states have (on average 1.2313915857605178) internal successors, (761), 558 states have internal predecessors, (761), 156 states have call successors, (156), 33 states have call predecessors, (156), 61 states have return successors, (343), 244 states have call predecessors, (343), 156 states have call successors, (343) [2021-12-07 01:26:55,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1260 transitions. [2021-12-07 01:26:55,954 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1260 transitions. Word has length 136 [2021-12-07 01:26:55,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:55,955 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1260 transitions. [2021-12-07 01:26:55,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.264705882352941) internal successors, (179), 30 states have internal predecessors, (179), 8 states have call successors, (27), 9 states have call predecessors, (27), 6 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2021-12-07 01:26:55,955 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1260 transitions. [2021-12-07 01:26:55,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-07 01:26:55,957 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:55,958 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:55,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 01:26:56,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:56,158 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1167717052, now seen corresponding path program 1 times [2021-12-07 01:26:56,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:56,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893690773] [2021-12-07 01:26:56,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:56,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-07 01:26:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:26:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:26:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:26:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 01:26:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-07 01:26:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-07 01:26:56,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:56,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893690773] [2021-12-07 01:26:56,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893690773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:26:56,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:26:56,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:26:56,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273186346] [2021-12-07 01:26:56,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:26:56,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:26:56,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:56,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:26:56,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:26:56,898 INFO L87 Difference]: Start difference. First operand 836 states and 1260 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 01:26:58,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:27:00,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:27:00,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:27:00,668 INFO L93 Difference]: Finished difference Result 1074 states and 1572 transitions. [2021-12-07 01:27:00,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:27:00,669 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 118 [2021-12-07 01:27:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:27:00,673 INFO L225 Difference]: With dead ends: 1074 [2021-12-07 01:27:00,673 INFO L226 Difference]: Without dead ends: 867 [2021-12-07 01:27:00,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:27:00,674 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 229 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:27:00,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1010 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-07 01:27:00,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-12-07 01:27:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 812. [2021-12-07 01:27:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 598 states have (on average 1.234113712374582) internal successors, (738), 541 states have internal predecessors, (738), 154 states have call successors, (154), 32 states have call predecessors, (154), 59 states have return successors, (333), 238 states have call predecessors, (333), 154 states have call successors, (333) [2021-12-07 01:27:00,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1225 transitions. [2021-12-07 01:27:00,718 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1225 transitions. Word has length 118 [2021-12-07 01:27:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:27:00,718 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1225 transitions. [2021-12-07 01:27:00,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 01:27:00,719 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1225 transitions. [2021-12-07 01:27:00,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 01:27:00,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:27:00,722 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:27:00,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 01:27:00,722 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:27:00,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:27:00,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1474702243, now seen corresponding path program 1 times [2021-12-07 01:27:00,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:27:00,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217020459] [2021-12-07 01:27:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:00,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:27:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:27:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:27:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:00,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:27:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-07 01:27:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:27:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-07 01:27:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:27:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:27:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:27:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:27:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-12-07 01:27:01,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:27:01,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217020459] [2021-12-07 01:27:01,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217020459] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:27:01,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466592706] [2021-12-07 01:27:01,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:01,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:27:01,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:27:01,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:27:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 01:27:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:01,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-07 01:27:01,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:27:01,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-12-07 01:27:01,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-12-07 01:27:01,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:27:01,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-12-07 01:27:01,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 01:27:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-07 01:27:01,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:27:01,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-12-07 01:27:01,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466592706] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:27:01,990 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:27:01,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 19 [2021-12-07 01:27:01,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417936100] [2021-12-07 01:27:01,990 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:27:01,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-07 01:27:01,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:27:01,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-07 01:27:01,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:27:01,991 INFO L87 Difference]: Start difference. First operand 812 states and 1225 transitions. Second operand has 19 states, 18 states have (on average 6.944444444444445) internal successors, (125), 15 states have internal predecessors, (125), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2021-12-07 01:27:04,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:27:06,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:27:06,622 INFO L93 Difference]: Finished difference Result 1839 states and 2846 transitions. [2021-12-07 01:27:06,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-07 01:27:06,622 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.944444444444445) internal successors, (125), 15 states have internal predecessors, (125), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) Word has length 147 [2021-12-07 01:27:06,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:27:06,627 INFO L225 Difference]: With dead ends: 1839 [2021-12-07 01:27:06,628 INFO L226 Difference]: Without dead ends: 1072 [2021-12-07 01:27:06,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=538, Invalid=2218, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 01:27:06,632 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1059 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 836 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 836 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 288 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:27:06,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 2300 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [836 Valid, 2182 Invalid, 1 Unknown, 288 Unchecked, 3.5s Time] [2021-12-07 01:27:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-12-07 01:27:06,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 968. [2021-12-07 01:27:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 700 states have (on average 1.2514285714285713) internal successors, (876), 618 states have internal predecessors, (876), 199 states have call successors, (199), 35 states have call predecessors, (199), 68 states have return successors, (459), 314 states have call predecessors, (459), 199 states have call successors, (459) [2021-12-07 01:27:06,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1534 transitions. [2021-12-07 01:27:06,690 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1534 transitions. Word has length 147 [2021-12-07 01:27:06,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:27:06,690 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1534 transitions. [2021-12-07 01:27:06,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.944444444444445) internal successors, (125), 15 states have internal predecessors, (125), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2021-12-07 01:27:06,691 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1534 transitions. [2021-12-07 01:27:06,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 01:27:06,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:27:06,694 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:27:06,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-07 01:27:06,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-07 01:27:06,895 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:27:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:27:06,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1732460611, now seen corresponding path program 1 times [2021-12-07 01:27:06,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:27:06,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805888338] [2021-12-07 01:27:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:06,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:27:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:27:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:27:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:27:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-07 01:27:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:27:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 01:27:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:27:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:27:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:27:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:27:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-12-07 01:27:07,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:27:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805888338] [2021-12-07 01:27:07,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805888338] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:27:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074238878] [2021-12-07 01:27:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:07,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:27:07,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:27:07,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:27:07,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 01:27:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:07,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-07 01:27:07,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:27:07,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-12-07 01:27:07,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-12-07 01:27:07,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:27:07,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-12-07 01:27:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-07 01:27:08,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:27:08,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-12-07 01:27:08,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074238878] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:27:08,229 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:27:08,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 17 [2021-12-07 01:27:08,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735930226] [2021-12-07 01:27:08,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:27:08,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-07 01:27:08,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:27:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-07 01:27:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:27:08,230 INFO L87 Difference]: Start difference. First operand 968 states and 1534 transitions. Second operand has 17 states, 16 states have (on average 6.5) internal successors, (104), 13 states have internal predecessors, (104), 8 states have call successors, (20), 6 states have call predecessors, (20), 5 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:27:10,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:27:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:27:12,584 INFO L93 Difference]: Finished difference Result 1744 states and 2633 transitions. [2021-12-07 01:27:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-12-07 01:27:12,585 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5) internal successors, (104), 13 states have internal predecessors, (104), 8 states have call successors, (20), 6 states have call predecessors, (20), 5 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 147 [2021-12-07 01:27:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:27:12,590 INFO L225 Difference]: With dead ends: 1744 [2021-12-07 01:27:12,590 INFO L226 Difference]: Without dead ends: 1141 [2021-12-07 01:27:12,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=567, Invalid=2189, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 01:27:12,593 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 905 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 666 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 308 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:27:12,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2037 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 1846 Invalid, 1 Unknown, 308 Unchecked, 3.3s Time] [2021-12-07 01:27:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2021-12-07 01:27:12,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 999. [2021-12-07 01:27:12,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 729 states have (on average 1.2496570644718792) internal successors, (911), 654 states have internal predecessors, (911), 192 states have call successors, (192), 41 states have call predecessors, (192), 77 states have return successors, (442), 303 states have call predecessors, (442), 192 states have call successors, (442) [2021-12-07 01:27:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1545 transitions. [2021-12-07 01:27:12,655 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1545 transitions. Word has length 147 [2021-12-07 01:27:12,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:27:12,655 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1545 transitions. [2021-12-07 01:27:12,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5) internal successors, (104), 13 states have internal predecessors, (104), 8 states have call successors, (20), 6 states have call predecessors, (20), 5 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:27:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1545 transitions. [2021-12-07 01:27:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-07 01:27:12,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:27:12,659 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:27:12,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-07 01:27:12,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:27:12,861 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:27:12,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:27:12,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2098606569, now seen corresponding path program 1 times [2021-12-07 01:27:12,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:27:12,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642729638] [2021-12-07 01:27:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:12,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:27:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:27:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:27:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:27:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-07 01:27:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:27:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:27:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 01:27:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 01:27:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-07 01:27:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:27:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 01:27:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-07 01:27:13,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:27:13,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642729638] [2021-12-07 01:27:13,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642729638] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:27:13,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120743358] [2021-12-07 01:27:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:13,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:27:13,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:27:13,181 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:27:13,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 01:27:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:13,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-07 01:27:13,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:27:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-07 01:27:13,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:27:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-07 01:27:14,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120743358] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:27:14,228 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:27:14,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 9] total 21 [2021-12-07 01:27:14,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102202637] [2021-12-07 01:27:14,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:27:14,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-07 01:27:14,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:27:14,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-07 01:27:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:27:14,230 INFO L87 Difference]: Start difference. First operand 999 states and 1545 transitions. Second operand has 21 states, 20 states have (on average 5.55) internal successors, (111), 17 states have internal predecessors, (111), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (26), 8 states have call predecessors, (26), 9 states have call successors, (26) [2021-12-07 01:27:16,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:27:18,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:27:21,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:27:21,995 INFO L93 Difference]: Finished difference Result 2849 states and 4511 transitions. [2021-12-07 01:27:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-07 01:27:21,995 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.55) internal successors, (111), 17 states have internal predecessors, (111), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (26), 8 states have call predecessors, (26), 9 states have call successors, (26) Word has length 146 [2021-12-07 01:27:21,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:27:22,007 INFO L225 Difference]: With dead ends: 2849 [2021-12-07 01:27:22,007 INFO L226 Difference]: Without dead ends: 1906 [2021-12-07 01:27:22,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 311 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=535, Invalid=2221, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 01:27:22,014 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1379 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 1065 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 3779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1065 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:27:22,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1415 Valid, 2646 Invalid, 3779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1065 Valid, 2712 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2021-12-07 01:27:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2021-12-07 01:27:22,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1756. [2021-12-07 01:27:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1285 states have (on average 1.242023346303502) internal successors, (1596), 1161 states have internal predecessors, (1596), 325 states have call successors, (325), 75 states have call predecessors, (325), 145 states have return successors, (858), 519 states have call predecessors, (858), 325 states have call successors, (858) [2021-12-07 01:27:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2779 transitions. [2021-12-07 01:27:22,132 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2779 transitions. Word has length 146 [2021-12-07 01:27:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:27:22,132 INFO L470 AbstractCegarLoop]: Abstraction has 1756 states and 2779 transitions. [2021-12-07 01:27:22,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.55) internal successors, (111), 17 states have internal predecessors, (111), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (26), 8 states have call predecessors, (26), 9 states have call successors, (26) [2021-12-07 01:27:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2779 transitions. [2021-12-07 01:27:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-07 01:27:22,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:27:22,137 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:27:22,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-07 01:27:22,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:27:22,339 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:27:22,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:27:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1887788041, now seen corresponding path program 1 times [2021-12-07 01:27:22,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:27:22,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689950046] [2021-12-07 01:27:22,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:22,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:27:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-07 01:27:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:27:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:27:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-07 01:27:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:27:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:27:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 01:27:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 01:27:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-07 01:27:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 01:27:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 01:27:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-07 01:27:24,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:27:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689950046] [2021-12-07 01:27:24,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689950046] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:27:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7568222] [2021-12-07 01:27:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:27:24,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:27:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:27:24,468 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:27:24,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c17b701-9f55-4247-a95a-e9329f5510b3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 01:27:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:27:25,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 115 conjunts are in the unsatisfiable core [2021-12-07 01:27:25,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:27:25,217 INFO L354 Elim1Store]: treesize reduction 318, result has 11.9 percent of original size [2021-12-07 01:27:25,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 36 treesize of output 60 [2021-12-07 01:27:26,400 INFO L354 Elim1Store]: treesize reduction 156, result has 41.1 percent of original size [2021-12-07 01:27:26,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1798 treesize of output 963 [2021-12-07 01:27:26,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:27:26,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:27:26,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:27:26,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-12-07 01:27:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:26,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 41 treesize of output 35 [2021-12-07 01:27:26,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:26,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 48 treesize of output 40 [2021-12-07 01:27:26,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-07 01:27:26,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:26,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 22 treesize of output 16 [2021-12-07 01:27:26,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,110 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 01:27:27,152 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 01:27:27,219 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 01:27:27,243 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 01:27:27,388 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:27:27,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2021-12-07 01:27:27,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 29 treesize of output 21 [2021-12-07 01:27:27,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 36 treesize of output 26 [2021-12-07 01:27:27,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 22 treesize of output 16 [2021-12-07 01:27:27,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 29 treesize of output 21 [2021-12-07 01:27:27,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:27,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 22 treesize of output 16 [2021-12-07 01:27:27,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,668 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:27:27,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 67 [2021-12-07 01:27:27,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-12-07 01:27:27,747 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 01:27:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:28,176 INFO L354 Elim1Store]: treesize reduction 69, result has 38.4 percent of original size [2021-12-07 01:27:28,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 55 [2021-12-07 01:27:28,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-07 01:27:28,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-07 01:27:28,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-07 01:27:28,343 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 01:27:28,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 01:27:28,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-07 01:27:28,448 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 01:27:28,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 01:27:28,609 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-12-07 01:27:28,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 58 [2021-12-07 01:27:28,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:27:28,653 INFO L354 Elim1Store]: treesize reduction 61, result has 39.6 percent of original size [2021-12-07 01:27:28,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 71 [2021-12-07 01:27:28,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-07 01:27:28,962 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 01:27:28,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 01:27:29,094 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:27:29,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 42 treesize of output 42 [2021-12-07 01:27:29,516 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 01:27:29,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 01:27:30,397 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 01:27:30,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 01:27:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-07 01:27:31,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:27:31,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:27:31,803 INFO L173 IndexEqualityManager]: detected equality via solver