./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:21:28,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:21:28,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:21:28,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:21:28,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:21:28,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:21:28,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:21:28,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:21:28,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:21:28,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:21:28,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:21:28,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:21:28,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:21:28,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:21:28,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:21:28,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:21:28,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:21:28,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:21:28,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:21:28,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:21:28,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:21:28,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:21:28,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:21:28,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:21:28,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:21:28,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:21:28,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:21:28,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:21:28,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:21:28,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:21:28,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:21:28,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:21:28,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:21:28,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:21:28,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:21:28,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:21:28,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:21:28,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:21:28,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:21:28,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:21:28,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:21:28,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:21:28,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:21:28,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:21:28,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:21:28,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:21:28,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:21:28,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:21:28,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:21:28,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:21:28,361 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:21:28,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:21:28,361 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:21:28,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:21:28,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:21:28,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:21:28,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:21:28,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:21:28,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:21:28,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:21:28,364 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:21:28,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:21:28,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:21:28,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:21:28,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:21:28,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:21:28,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:21:28,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:21:28,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:28,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:21:28,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:21:28,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:21:28,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:21:28,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:21:28,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:21:28,368 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_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2022-11-02 20:21:28,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:28,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:28,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:28,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:28,639 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:28,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-02 20:21:28,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/data/726999d3e/735c760b0071466cb243312f8cfde7b8/FLAGd125bdff7 [2022-11-02 20:21:29,223 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:29,224 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-02 20:21:29,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/data/726999d3e/735c760b0071466cb243312f8cfde7b8/FLAGd125bdff7 [2022-11-02 20:21:29,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/data/726999d3e/735c760b0071466cb243312f8cfde7b8 [2022-11-02 20:21:29,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:29,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:29,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:29,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:29,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:29,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:29" (1/1) ... [2022-11-02 20:21:29,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d8aec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:29, skipping insertion in model container [2022-11-02 20:21:29,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:29" (1/1) ... [2022-11-02 20:21:29,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:29,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:29,956 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_9f289623-2f58-4f17-945d-6a0d31d3b09f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-02 20:21:29,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:29,971 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:30,041 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_9f289623-2f58-4f17-945d-6a0d31d3b09f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-02 20:21:30,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:30,060 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:30,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30 WrapperNode [2022-11-02 20:21:30,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:30,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:30,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:30,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:30,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,226 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1704 [2022-11-02 20:21:30,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:30,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:30,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:30,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:30,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:30,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:30,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:30,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:30,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (1/1) ... [2022-11-02 20:21:30,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:30,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:30,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:30,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:30,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:30,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:21:30,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:21:30,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:21:30,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:21:30,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:21:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:21:30,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:21:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:21:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:21:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:21:30,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:30,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:30,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:21:30,462 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:21:30,734 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:30,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:21:32,624 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:21:35,810 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:21:35,811 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-02 20:21:35,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:35 BoogieIcfgContainer [2022-11-02 20:21:35,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:21:35,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:21:35,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:21:35,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:21:35,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:29" (1/3) ... [2022-11-02 20:21:35,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d41fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:35, skipping insertion in model container [2022-11-02 20:21:35,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:30" (2/3) ... [2022-11-02 20:21:35,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d41fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:35, skipping insertion in model container [2022-11-02 20:21:35,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:35" (3/3) ... [2022-11-02 20:21:35,828 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-11-02 20:21:35,842 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:21:35,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:21:35,853 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-11-02 20:21:35,853 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:21:36,764 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:21:36,823 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:36,837 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 533 places, 583 transitions, 1182 flow [2022-11-02 20:21:36,846 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 533 places, 583 transitions, 1182 flow [2022-11-02 20:21:36,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 533 places, 583 transitions, 1182 flow [2022-11-02 20:21:37,171 INFO L130 PetriNetUnfolder]: 57/581 cut-off events. [2022-11-02 20:21:37,171 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:21:37,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 581 events. 57/581 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1018 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-11-02 20:21:37,185 INFO L118 LiptonReduction]: Number of co-enabled transitions 12848 [2022-11-02 20:24:32,161 INFO L133 LiptonReduction]: Checked pairs total: 17156 [2022-11-02 20:24:32,161 INFO L135 LiptonReduction]: Total number of compositions: 754 [2022-11-02 20:24:32,170 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 111 transitions, 238 flow [2022-11-02 20:24:32,272 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1949 states, 1203 states have (on average 4.280133000831255) internal successors, (5149), 1948 states have internal predecessors, (5149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:32,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:24:32,301 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@cd6c0e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:24:32,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-11-02 20:24:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 1949 states, 1203 states have (on average 4.280133000831255) internal successors, (5149), 1948 states have internal predecessors, (5149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-02 20:24:32,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:32,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-02 20:24:32,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:32,321 INFO L85 PathProgramCache]: Analyzing trace with hash 214119, now seen corresponding path program 1 times [2022-11-02 20:24:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:32,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257457801] [2022-11-02 20:24:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:32,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:32,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:32,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257457801] [2022-11-02 20:24:32,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257457801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:32,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:32,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:24:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574416260] [2022-11-02 20:24:32,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:32,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:32,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:32,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:32,782 INFO L87 Difference]: Start difference. First operand has 1949 states, 1203 states have (on average 4.280133000831255) internal successors, (5149), 1948 states have internal predecessors, (5149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:33,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:33,496 INFO L93 Difference]: Finished difference Result 1969 states and 5327 transitions. [2022-11-02 20:24:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:33,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-02 20:24:33,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:33,540 INFO L225 Difference]: With dead ends: 1969 [2022-11-02 20:24:33,540 INFO L226 Difference]: Without dead ends: 1959 [2022-11-02 20:24:33,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:33,545 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:33,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:24:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2022-11-02 20:24:33,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 996. [2022-11-02 20:24:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 657 states have (on average 4.057838660578387) internal successors, (2666), 995 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:33,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 2666 transitions. [2022-11-02 20:24:33,695 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 2666 transitions. Word has length 2 [2022-11-02 20:24:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:33,696 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 2666 transitions. [2022-11-02 20:24:33,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:33,697 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 2666 transitions. [2022-11-02 20:24:33,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:24:33,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:33,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:24:33,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:24:33,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:33,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:33,700 INFO L85 PathProgramCache]: Analyzing trace with hash 6646929, now seen corresponding path program 1 times [2022-11-02 20:24:33,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:33,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037101099] [2022-11-02 20:24:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:33,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:33,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:33,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037101099] [2022-11-02 20:24:33,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037101099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:33,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906338793] [2022-11-02 20:24:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:33,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:33,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:33,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:33,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:24:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:35,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:24:35,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:35,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:35,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906338793] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:35,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:24:35,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-02 20:24:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119327951] [2022-11-02 20:24:35,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:35,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:24:35,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:35,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:24:35,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:24:35,352 INFO L87 Difference]: Start difference. First operand 996 states and 2666 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:36,866 INFO L93 Difference]: Finished difference Result 4872 states and 13206 transitions. [2022-11-02 20:24:36,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:24:36,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-02 20:24:36,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:36,899 INFO L225 Difference]: With dead ends: 4872 [2022-11-02 20:24:36,900 INFO L226 Difference]: Without dead ends: 4872 [2022-11-02 20:24:36,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:24:36,901 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 275 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:36,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 0 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:24:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2022-11-02 20:24:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 1020. [2022-11-02 20:24:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 681 states have (on average 4.020558002936857) internal successors, (2738), 1019 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 2738 transitions. [2022-11-02 20:24:36,980 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 2738 transitions. Word has length 3 [2022-11-02 20:24:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:36,981 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 2738 transitions. [2022-11-02 20:24:36,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 2738 transitions. [2022-11-02 20:24:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:24:36,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:36,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:24:37,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:37,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:37,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash 6647017, now seen corresponding path program 1 times [2022-11-02 20:24:37,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:37,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584788978] [2022-11-02 20:24:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:37,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584788978] [2022-11-02 20:24:37,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584788978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:37,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:37,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:24:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904056088] [2022-11-02 20:24:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:37,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:37,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:37,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:37,342 INFO L87 Difference]: Start difference. First operand 1020 states and 2738 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:37,614 INFO L93 Difference]: Finished difference Result 1012 states and 2706 transitions. [2022-11-02 20:24:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-02 20:24:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:37,622 INFO L225 Difference]: With dead ends: 1012 [2022-11-02 20:24:37,623 INFO L226 Difference]: Without dead ends: 1012 [2022-11-02 20:24:37,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:37,628 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:37,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 0 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-11-02 20:24:37,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2022-11-02 20:24:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 681 states have (on average 3.973568281938326) internal successors, (2706), 1011 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 2706 transitions. [2022-11-02 20:24:37,674 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 2706 transitions. Word has length 3 [2022-11-02 20:24:37,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:37,674 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 2706 transitions. [2022-11-02 20:24:37,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 2706 transitions. [2022-11-02 20:24:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:24:37,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:37,676 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-02 20:24:37,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:24:37,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:37,677 INFO L85 PathProgramCache]: Analyzing trace with hash 459341543, now seen corresponding path program 2 times [2022-11-02 20:24:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:37,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109825693] [2022-11-02 20:24:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:37,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109825693] [2022-11-02 20:24:37,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109825693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524334092] [2022-11-02 20:24:37,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:24:37,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:37,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:37,921 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:37,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:24:38,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:24:38,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:38,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:24:38,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:24:38,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:24:38,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524334092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:38,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:24:38,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-02 20:24:38,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687724886] [2022-11-02 20:24:38,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:38,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:38,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:24:38,970 INFO L87 Difference]: Start difference. First operand 1012 states and 2706 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:39,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:39,240 INFO L93 Difference]: Finished difference Result 1006 states and 2700 transitions. [2022-11-02 20:24:39,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:39,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 6 [2022-11-02 20:24:39,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:39,248 INFO L225 Difference]: With dead ends: 1006 [2022-11-02 20:24:39,249 INFO L226 Difference]: Without dead ends: 1006 [2022-11-02 20:24:39,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:24:39,256 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:39,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:39,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-11-02 20:24:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 982. [2022-11-02 20:24:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 657 states have (on average 4.036529680365297) internal successors, (2652), 981 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 2652 transitions. [2022-11-02 20:24:39,292 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 2652 transitions. Word has length 6 [2022-11-02 20:24:39,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:39,292 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 2652 transitions. [2022-11-02 20:24:39,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:39,292 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 2652 transitions. [2022-11-02 20:24:39,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:24:39,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:39,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:39,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:39,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:39,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:39,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1028046672, now seen corresponding path program 1 times [2022-11-02 20:24:39,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:39,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910023720] [2022-11-02 20:24:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:39,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:39,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910023720] [2022-11-02 20:24:39,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910023720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:39,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:39,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:24:39,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844962816] [2022-11-02 20:24:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:39,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:39,751 INFO L87 Difference]: Start difference. First operand 982 states and 2652 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:40,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:40,022 INFO L93 Difference]: Finished difference Result 984 states and 2654 transitions. [2022-11-02 20:24:40,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-02 20:24:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:40,031 INFO L225 Difference]: With dead ends: 984 [2022-11-02 20:24:40,031 INFO L226 Difference]: Without dead ends: 984 [2022-11-02 20:24:40,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:40,032 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:40,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-11-02 20:24:40,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 984. [2022-11-02 20:24:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 659 states have (on average 4.027314112291351) internal successors, (2654), 983 states have internal predecessors, (2654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:40,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 2654 transitions. [2022-11-02 20:24:40,151 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 2654 transitions. Word has length 11 [2022-11-02 20:24:40,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:40,151 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 2654 transitions. [2022-11-02 20:24:40,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:40,152 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 2654 transitions. [2022-11-02 20:24:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 20:24:40,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:40,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:40,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:24:40,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:40,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash 507243485, now seen corresponding path program 1 times [2022-11-02 20:24:40,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:40,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751497114] [2022-11-02 20:24:40,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:40,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:24:40,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:40,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751497114] [2022-11-02 20:24:40,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751497114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:40,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:40,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:24:40,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199960299] [2022-11-02 20:24:40,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:40,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:40,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:40,348 INFO L87 Difference]: Start difference. First operand 984 states and 2654 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:40,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:40,655 INFO L93 Difference]: Finished difference Result 988 states and 2658 transitions. [2022-11-02 20:24:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:40,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-02 20:24:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:40,662 INFO L225 Difference]: With dead ends: 988 [2022-11-02 20:24:40,662 INFO L226 Difference]: Without dead ends: 988 [2022-11-02 20:24:40,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:40,663 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:40,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:40,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-11-02 20:24:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2022-11-02 20:24:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 663 states have (on average 4.009049773755656) internal successors, (2658), 987 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 2658 transitions. [2022-11-02 20:24:40,694 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 2658 transitions. Word has length 13 [2022-11-02 20:24:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:40,694 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 2658 transitions. [2022-11-02 20:24:40,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 2658 transitions. [2022-11-02 20:24:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:24:40,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:40,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:40,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:24:40,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:40,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:40,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1263610025, now seen corresponding path program 1 times [2022-11-02 20:24:40,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:40,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724131496] [2022-11-02 20:24:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:40,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:40,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-02 20:24:40,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:40,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724131496] [2022-11-02 20:24:40,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724131496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:40,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:40,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:24:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932158467] [2022-11-02 20:24:40,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:40,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:40,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:40,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:40,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:40,920 INFO L87 Difference]: Start difference. First operand 988 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:41,208 INFO L93 Difference]: Finished difference Result 988 states and 2656 transitions. [2022-11-02 20:24:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:41,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:24:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:41,217 INFO L225 Difference]: With dead ends: 988 [2022-11-02 20:24:41,217 INFO L226 Difference]: Without dead ends: 988 [2022-11-02 20:24:41,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:41,219 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:41,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-11-02 20:24:41,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2022-11-02 20:24:41,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 663 states have (on average 4.006033182503771) internal successors, (2656), 987 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 2656 transitions. [2022-11-02 20:24:41,259 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 2656 transitions. Word has length 17 [2022-11-02 20:24:41,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:41,260 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 2656 transitions. [2022-11-02 20:24:41,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 2656 transitions. [2022-11-02 20:24:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:24:41,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:41,261 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:41,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:24:41,261 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:41,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash 425296011, now seen corresponding path program 1 times [2022-11-02 20:24:41,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:41,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583165996] [2022-11-02 20:24:41,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:41,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-02 20:24:41,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:41,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583165996] [2022-11-02 20:24:41,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583165996] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:41,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027300152] [2022-11-02 20:24:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:41,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:41,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:41,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:41,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:24:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:42,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:24:42,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-02 20:24:42,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-02 20:24:42,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027300152] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:42,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:24:42,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2022-11-02 20:24:42,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767556339] [2022-11-02 20:24:42,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:42,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:24:42,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:42,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:24:42,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:24:42,624 INFO L87 Difference]: Start difference. First operand 988 states and 2656 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:43,053 INFO L93 Difference]: Finished difference Result 998 states and 2660 transitions. [2022-11-02 20:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:24:43,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-02 20:24:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:43,060 INFO L225 Difference]: With dead ends: 998 [2022-11-02 20:24:43,065 INFO L226 Difference]: Without dead ends: 998 [2022-11-02 20:24:43,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:24:43,067 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:43,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:24:43,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2022-11-02 20:24:43,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 998. [2022-11-02 20:24:43,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 673 states have (on average 3.9524517087667164) internal successors, (2660), 997 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 2660 transitions. [2022-11-02 20:24:43,098 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 2660 transitions. Word has length 18 [2022-11-02 20:24:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:43,098 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 2660 transitions. [2022-11-02 20:24:43,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:43,098 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 2660 transitions. [2022-11-02 20:24:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-02 20:24:43,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:43,100 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:43,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:43,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 20:24:43,314 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash 526332548, now seen corresponding path program 2 times [2022-11-02 20:24:43,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:43,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327952154] [2022-11-02 20:24:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-02 20:24:43,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:43,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327952154] [2022-11-02 20:24:43,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327952154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:43,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107934921] [2022-11-02 20:24:43,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:24:43,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:43,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:43,609 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:43,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:24:44,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:24:44,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:44,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:24:44,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-02 20:24:44,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:24:44,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107934921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:44,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:24:44,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-02 20:24:44,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523691557] [2022-11-02 20:24:44,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:44,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:44,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:44,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:44,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:44,946 INFO L87 Difference]: Start difference. First operand 998 states and 2660 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:45,209 INFO L93 Difference]: Finished difference Result 996 states and 2658 transitions. [2022-11-02 20:24:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:45,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-02 20:24:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:45,216 INFO L225 Difference]: With dead ends: 996 [2022-11-02 20:24:45,216 INFO L226 Difference]: Without dead ends: 996 [2022-11-02 20:24:45,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:45,218 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:45,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:45,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-11-02 20:24:45,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 996. [2022-11-02 20:24:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 673 states have (on average 3.949479940564636) internal successors, (2658), 995 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 2658 transitions. [2022-11-02 20:24:45,254 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 2658 transitions. Word has length 28 [2022-11-02 20:24:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:45,255 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 2658 transitions. [2022-11-02 20:24:45,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 2658 transitions. [2022-11-02 20:24:45,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 20:24:45,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:45,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:45,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:45,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:45,470 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:45,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:45,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1524448112, now seen corresponding path program 1 times [2022-11-02 20:24:45,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:45,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593012582] [2022-11-02 20:24:45,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:45,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-02 20:24:45,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:45,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593012582] [2022-11-02 20:24:45,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593012582] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:45,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658053514] [2022-11-02 20:24:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:45,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:45,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:45,977 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:46,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:24:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:47,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:24:47,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-02 20:24:47,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-02 20:24:47,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658053514] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:47,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:24:47,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2022-11-02 20:24:47,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951816562] [2022-11-02 20:24:47,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:47,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-02 20:24:47,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-02 20:24:47,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:24:47,529 INFO L87 Difference]: Start difference. First operand 996 states and 2658 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:48,131 INFO L93 Difference]: Finished difference Result 1008 states and 2670 transitions. [2022-11-02 20:24:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:24:48,132 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 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 35 [2022-11-02 20:24:48,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:48,138 INFO L225 Difference]: With dead ends: 1008 [2022-11-02 20:24:48,138 INFO L226 Difference]: Without dead ends: 1008 [2022-11-02 20:24:48,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:24:48,139 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:48,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:24:48,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-11-02 20:24:48,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2022-11-02 20:24:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 685 states have (on average 3.897810218978102) internal successors, (2670), 1007 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 2670 transitions. [2022-11-02 20:24:48,175 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 2670 transitions. Word has length 35 [2022-11-02 20:24:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:48,175 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 2670 transitions. [2022-11-02 20:24:48,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 2670 transitions. [2022-11-02 20:24:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 20:24:48,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:48,177 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:48,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:48,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:24:48,394 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash -137734707, now seen corresponding path program 2 times [2022-11-02 20:24:48,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400063162] [2022-11-02 20:24:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-02 20:24:48,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:48,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400063162] [2022-11-02 20:24:48,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400063162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:48,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228932262] [2022-11-02 20:24:48,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:24:48,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:48,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:48,938 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:48,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:24:50,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:24:50,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:50,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:24:50,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-02 20:24:50,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-02 20:24:50,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228932262] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:50,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:24:50,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-11-02 20:24:50,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056689425] [2022-11-02 20:24:50,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:50,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-02 20:24:50,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-02 20:24:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=205, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:50,971 INFO L87 Difference]: Start difference. First operand 1008 states and 2670 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:51,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:51,478 INFO L93 Difference]: Finished difference Result 1022 states and 2684 transitions. [2022-11-02 20:24:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:24:51,478 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 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 47 [2022-11-02 20:24:51,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:51,485 INFO L225 Difference]: With dead ends: 1022 [2022-11-02 20:24:51,485 INFO L226 Difference]: Without dead ends: 1022 [2022-11-02 20:24:51,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=205, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:24:51,487 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:51,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:24:51,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-02 20:24:51,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1022. [2022-11-02 20:24:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 699 states have (on average 3.839771101573677) internal successors, (2684), 1021 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 2684 transitions. [2022-11-02 20:24:51,525 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 2684 transitions. Word has length 47 [2022-11-02 20:24:51,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:51,526 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 2684 transitions. [2022-11-02 20:24:51,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 2684 transitions. [2022-11-02 20:24:51,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-02 20:24:51,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:51,528 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:51,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:51,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-02 20:24:51,738 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-02 20:24:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1010307485, now seen corresponding path program 3 times [2022-11-02 20:24:51,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:51,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427357383] [2022-11-02 20:24:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-02 20:24:52,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:52,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427357383] [2022-11-02 20:24:52,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427357383] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:52,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262850966] [2022-11-02 20:24:52,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:24:52,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:52,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:52,774 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:52,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f289623-2f58-4f17-945d-6a0d31d3b09f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:25:05,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-02 20:25:05,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:25:05,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:25:05,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:25:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-02 20:25:06,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:25:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-02 20:25:06,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262850966] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:25:06,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:25:06,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 41 [2022-11-02 20:25:06,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45898201] [2022-11-02 20:25:06,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:25:06,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-02 20:25:06,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:06,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-02 20:25:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1054, Unknown=0, NotChecked=0, Total=1640 [2022-11-02 20:25:06,582 INFO L87 Difference]: Start difference. First operand 1022 states and 2684 transitions. Second operand has 41 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 41 states have internal predecessors, (58), 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)