./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c245694d80bb36f575f27eb50fa261b26ec38a4ced597397981ad6c6c7486707 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:57:44,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:57:44,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:57:44,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:57:44,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:57:44,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:57:44,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:57:44,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:57:44,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:57:44,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:57:44,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:57:44,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:57:44,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:57:44,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:57:44,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:57:44,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:57:44,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:57:44,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:57:44,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:57:44,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:57:44,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:57:44,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:57:44,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:57:44,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:57:44,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:57:44,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:57:44,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:57:44,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:57:44,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:57:44,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:57:44,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:57:44,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:57:44,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:57:44,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:57:44,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:57:44,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:57:44,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:57:44,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:57:44,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:57:44,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:57:44,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:57:44,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-13 18:57:44,375 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:57:44,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:57:44,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:57:44,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:57:44,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:57:44,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:57:44,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:57:44,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:57:44,388 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:57:44,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:57:44,390 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:57:44,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:57:44,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:57:44,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:57:44,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:57:44,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:57:44,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:57:44,392 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:57:44,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:57:44,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:57:44,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:57:44,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:57:44,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:57:44,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-13 18:57:44,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:57:44,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:57:44,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:57:44,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:57:44,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:57:44,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:57:44,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:57:44,398 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:57:44,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-13 18:57:44,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:57:44,399 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-13 18:57:44,399 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-13 18:57:44,400 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_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c245694d80bb36f575f27eb50fa261b26ec38a4ced597397981ad6c6c7486707 [2021-11-13 18:57:44,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:57:44,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:57:44,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:57:44,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:57:44,791 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:57:44,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2021-11-13 18:57:44,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/data/f146083cf/db258c278af54776a75adbd700b2ba98/FLAGa3b99dba7 [2021-11-13 18:57:45,538 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:57:45,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2021-11-13 18:57:45,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/data/f146083cf/db258c278af54776a75adbd700b2ba98/FLAGa3b99dba7 [2021-11-13 18:57:45,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/data/f146083cf/db258c278af54776a75adbd700b2ba98 [2021-11-13 18:57:45,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:57:45,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:57:45,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:57:45,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:57:45,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:57:45,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:57:45" (1/1) ... [2021-11-13 18:57:45,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4f7921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:45, skipping insertion in model container [2021-11-13 18:57:45,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:57:45" (1/1) ... [2021-11-13 18:57:45,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:57:45,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:57:46,115 WARN L228 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_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c[2554,2567] [2021-11-13 18:57:46,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:57:46,129 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:57:46,154 WARN L228 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_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c[2554,2567] [2021-11-13 18:57:46,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:57:46,168 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:57:46,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46 WrapperNode [2021-11-13 18:57:46,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:57:46,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:57:46,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:57:46,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:57:46,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:57:46,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:57:46,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:57:46,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:57:46,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:57:46,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:57:46,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:57:46,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:57:46,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (1/1) ... [2021-11-13 18:57:46,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:57:46,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:57:46,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:57:46,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:57:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-13 18:57:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-13 18:57:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-13 18:57:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-13 18:57:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:57:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:57:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:57:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 18:57:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 18:57:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:57:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:57:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:57:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:57:46,351 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:57:46,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:57:46,821 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:57:46,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:57:46 BoogieIcfgContainer [2021-11-13 18:57:46,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:57:46,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:57:46,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:57:46,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:57:46,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:57:45" (1/3) ... [2021-11-13 18:57:46,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289c04cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:57:46, skipping insertion in model container [2021-11-13 18:57:46,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:57:46" (2/3) ... [2021-11-13 18:57:46,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289c04cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:57:46, skipping insertion in model container [2021-11-13 18:57:46,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:57:46" (3/3) ... [2021-11-13 18:57:46,834 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2021-11-13 18:57:46,840 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:57:46,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:57:46,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:57:46,841 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:57:46,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,895 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,896 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,896 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,897 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,897 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,897 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,898 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,898 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,901 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,901 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,901 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,902 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,903 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,903 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,904 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,904 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,905 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,905 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:57:46,921 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-13 18:57:47,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 18:57:47,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:57:47,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 18:57:47,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-13 18:57:47,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 18:57:47,072 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:57:47,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 18:57:47,320 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:47,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash 259722685, now seen corresponding path program 1 times [2021-11-13 18:57:47,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:47,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543598635] [2021-11-13 18:57:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:47,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:47,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:47,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:47,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543598635] [2021-11-13 18:57:47,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543598635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:57:47,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:57:47,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:57:47,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857971605] [2021-11-13 18:57:47,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:57:47,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:57:47,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:47,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:57:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:57:47,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:47,699 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:47,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:47,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:47,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:57:47,742 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:47,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash 995393708, now seen corresponding path program 1 times [2021-11-13 18:57:47,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:47,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700821272] [2021-11-13 18:57:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:47,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:48,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:48,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700821272] [2021-11-13 18:57:48,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700821272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:57:48,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:57:48,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:57:48,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291936455] [2021-11-13 18:57:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:57:48,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:57:48,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:48,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:57:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:57:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:48,357 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:48,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:48,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:48,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:48,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:57:48,736 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:48,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:48,737 INFO L85 PathProgramCache]: Analyzing trace with hash 290915508, now seen corresponding path program 1 times [2021-11-13 18:57:48,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:48,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618879157] [2021-11-13 18:57:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:48,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:49,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:49,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618879157] [2021-11-13 18:57:49,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618879157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:57:49,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:57:49,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:57:49,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121646755] [2021-11-13 18:57:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:57:49,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:57:49,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:57:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:57:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:49,095 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:49,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:49,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:49,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:49,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:49,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:49,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:49,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:57:49,417 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:49,418 INFO L85 PathProgramCache]: Analyzing trace with hash -289084313, now seen corresponding path program 1 times [2021-11-13 18:57:49,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:49,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726246315] [2021-11-13 18:57:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:49,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:49,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:49,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726246315] [2021-11-13 18:57:49,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726246315] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:57:49,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19324025] [2021-11-13 18:57:49,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:49,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:57:49,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:57:49,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:57:49,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:57:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:49,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:57:49,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:57:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:50,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:57:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:51,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19324025] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:57:51,684 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:57:51,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2021-11-13 18:57:51,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072364500] [2021-11-13 18:57:51,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:57:51,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 18:57:51,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:51,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 18:57:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:57:51,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:51,690 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:51,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.0) internal successors, (126), 14 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:51,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:51,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:51,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:51,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:52,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-13 18:57:52,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-13 18:57:52,360 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:52,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:52,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1625030503, now seen corresponding path program 1 times [2021-11-13 18:57:52,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:52,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904429860] [2021-11-13 18:57:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:52,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:52,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:52,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904429860] [2021-11-13 18:57:52,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904429860] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:57:52,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540893519] [2021-11-13 18:57:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:52,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:57:52,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:57:52,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:57:52,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:57:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:52,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 18:57:52,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:57:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 18:57:53,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:57:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 18:57:54,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540893519] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:57:54,102 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:57:54,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2021-11-13 18:57:54,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394550648] [2021-11-13 18:57:54,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:57:54,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-13 18:57:54,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-13 18:57:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:57:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:54,105 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:54,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.904761904761905) internal successors, (145), 21 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:54,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:54,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:54,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:54,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:54,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:55,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:55,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:55,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:55,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:55,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-13 18:57:55,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:57:55,968 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1923151692, now seen corresponding path program 2 times [2021-11-13 18:57:55,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:55,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662059250] [2021-11-13 18:57:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:55,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-13 18:57:56,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:56,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662059250] [2021-11-13 18:57:56,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662059250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:57:56,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:57:56,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:57:56,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377148261] [2021-11-13 18:57:56,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:57:56,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:57:56,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:56,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:57:56,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:57:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,086 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:56,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:56,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:56,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:56,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:56,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:56,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:56,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:57:56,161 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash -409245844, now seen corresponding path program 1 times [2021-11-13 18:57:56,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:56,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837524861] [2021-11-13 18:57:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:56,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:56,293 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 18:57:56,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:56,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837524861] [2021-11-13 18:57:56,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837524861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:57:56,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:57:56,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:57:56,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948834484] [2021-11-13 18:57:56,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:57:56,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:57:56,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:56,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:57:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:57:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,296 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:56,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:56,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:56,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:56,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:56,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:56,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:56,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:56,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:57:56,356 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:56,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:56,357 INFO L85 PathProgramCache]: Analyzing trace with hash -606719156, now seen corresponding path program 1 times [2021-11-13 18:57:56,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:56,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977238350] [2021-11-13 18:57:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:56,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:57:56,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:56,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977238350] [2021-11-13 18:57:56,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977238350] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:57:56,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064575064] [2021-11-13 18:57:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:56,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:57:56,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:57:56,588 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:57:56,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 18:57:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:56,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 18:57:56,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:57:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:57:57,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:57:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:57:57,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064575064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:57:57,367 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:57:57,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2021-11-13 18:57:57,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549405989] [2021-11-13 18:57:57,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:57:57,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:57:57,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:57:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:57:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:57:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:57,370 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:57:57,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:57:57,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:57,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:57,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:57,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:57,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:57,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:57,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:57,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:57:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:57:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:57:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:57:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:57:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:57:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:57:57,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-13 18:57:57,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:57:57,793 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:57:57,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:57:57,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1952113132, now seen corresponding path program 2 times [2021-11-13 18:57:57,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:57:57,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811478903] [2021-11-13 18:57:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:57:57,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:57:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:57:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:57:58,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:57:58,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811478903] [2021-11-13 18:57:58,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811478903] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:57:58,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859543656] [2021-11-13 18:57:58,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:57:58,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:57:58,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:57:58,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:57:58,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 18:57:58,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:57:58,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:57:58,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 18:57:58,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:57:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 18:57:59,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:58:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 18:58:02,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859543656] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:58:02,577 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:58:02,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 37 [2021-11-13 18:58:02,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797165304] [2021-11-13 18:58:02,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:58:02,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-13 18:58:02,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:58:02,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-13 18:58:02,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1213, Unknown=0, NotChecked=0, Total=1332 [2021-11-13 18:58:02,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:02,579 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:58:02,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:02,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:02,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:58:02,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:58:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-13 18:58:13,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:58:13,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:58:13,421 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:58:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:58:13,422 INFO L85 PathProgramCache]: Analyzing trace with hash 297631628, now seen corresponding path program 3 times [2021-11-13 18:58:13,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:58:13,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136473431] [2021-11-13 18:58:13,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:58:13,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:58:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:58:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:58:13,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:58:13,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136473431] [2021-11-13 18:58:13,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136473431] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:58:13,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634323943] [2021-11-13 18:58:13,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 18:58:13,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:58:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:58:13,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:58:13,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 18:58:13,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-13 18:58:13,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:58:13,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 18:58:13,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:58:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:58:14,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:58:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:58:14,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634323943] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:58:14,492 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:58:14,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2021-11-13 18:58:14,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948293478] [2021-11-13 18:58:14,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:58:14,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 18:58:14,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:58:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 18:58:14,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:58:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:14,497 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:58:14,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:58:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:58:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:58:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:58:14,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:58:14,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:14,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:14,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:58:14,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-13 18:58:14,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:58:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:58:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:58:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:58:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:58:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-13 18:58:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:58:18,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:58:18,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-13 18:58:18,748 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 18:58:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:58:18,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1795591143, now seen corresponding path program 4 times [2021-11-13 18:58:18,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:58:18,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453485523] [2021-11-13 18:58:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:58:18,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:58:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:58:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:58:19,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:58:19,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453485523] [2021-11-13 18:58:19,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453485523] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:58:19,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484284853] [2021-11-13 18:58:19,759 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 18:58:19,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:58:19,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:58:19,760 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:58:19,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 18:58:20,214 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 18:58:20,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:58:20,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 18:58:20,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:58:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-13 18:58:23,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:58:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-13 18:58:31,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484284853] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:58:31,478 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:58:31,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 12] total 39 [2021-11-13 18:58:31,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080657666] [2021-11-13 18:58:31,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:58:31,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-13 18:58:31,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:58:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-13 18:58:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1356, Unknown=2, NotChecked=0, Total=1482 [2021-11-13 18:58:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:31,481 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:58:31,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.205128205128205) internal successors, (203), 39 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:58:31,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:58:31,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:58:31,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:58:31,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:58:31,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:17,520 WARN L227 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 78 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 19:00:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:00:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 19:00:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 19:00:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 19:00:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 19:00:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:00:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:00:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:00:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-13 19:00:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:00:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-13 19:00:11,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 19:00:11,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:00:11,900 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 19:00:11,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:00:11,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1436151956, now seen corresponding path program 5 times [2021-11-13 19:00:11,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:00:11,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373229798] [2021-11-13 19:00:11,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:00:11,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:00:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:00:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 130 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 19:00:14,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:00:14,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373229798] [2021-11-13 19:00:14,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373229798] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:00:14,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426505643] [2021-11-13 19:00:14,550 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 19:00:14,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:00:14,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:00:14,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:00:14,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 19:00:16,524 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-11-13 19:00:16,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:00:16,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-13 19:00:16,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:00:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-13 19:00:20,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:00:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-13 19:00:47,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426505643] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:00:47,618 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:00:47,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 23, 23] total 72 [2021-11-13 19:00:47,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494838850] [2021-11-13 19:00:47,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:00:47,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-11-13 19:00:47,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:47,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-11-13 19:00:47,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=4692, Unknown=5, NotChecked=0, Total=5112 [2021-11-13 19:00:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:00:47,625 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:00:47,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 4.25) internal successors, (306), 72 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:00:47,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:00:47,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 19:00:47,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 19:00:47,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 19:00:47,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 19:00:47,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:00:47,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:00:47,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:00:47,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-13 19:00:47,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:00:47,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-13 19:00:47,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:00:55,438 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (* c_~N~0 2))) (let ((.cse1 (mod .cse8 4294967296)) (.cse7 (div .cse8 4294967296))) (let ((.cse5 (* .cse7 2147483648)) (.cse6 (* c_~N~0 (- 1))) (.cse2 (mod (+ 2 c_~i2~0) 4294967296)) (.cse4 (<= .cse1 (mod (+ c_~i2~0 1) 4294967296))) (.cse0 (mod (+ 3 c_~i2~0) 4294967296)) (.cse3 (mod (+ c_~i2~0 4) 4294967296))) (and (or (< .cse0 .cse1) (<= .cse1 .cse2)) (or (<= .cse1 .cse3) (< (mod (+ 5 c_~i2~0) 4294967296) .cse1) .cse4) (<= (* 2 c_~N~0) (+ (* 4294967296 (div (+ .cse5 2 (* (div c_~i2~0 4294967296) (- 2147483648)) .cse6) 2147483648)) c_~i2~0 (* 4294967296 .cse7))) (<= |c_thread2Thread1of1ForFork1_#t~post6| (+ 4294967293 (* 4294967296 (div (+ .cse5 2 (* (div (+ (* .cse7 (- 4294967296)) .cse8 (* |c_thread2Thread1of1ForFork1_#t~post6| (- 1)) 4294967293) 4294967296) (- 2147483648)) .cse6) 2147483648)))) (or (< (mod (+ |c_thread2Thread1of1ForFork1_#t~post6| 2) 4294967296) .cse1) (<= .cse1 (mod (+ |c_thread2Thread1of1ForFork1_#t~post6| 1) 4294967296))) (or (< .cse2 .cse1) .cse4) (or (<= .cse1 .cse0) (< .cse3 .cse1)))))) is different from false [2021-11-13 19:01:03,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:04,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:01:36,662 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (* c_~N~0 2))) (let ((.cse3 (div .cse5 4294967296))) (let ((.cse0 (* .cse3 2147483648)) (.cse2 (* c_~N~0 (- 1))) (.cse1 (div c_~i2~0 4294967296)) (.cse4 (mod .cse5 4294967296))) (and (<= (* 2 c_~N~0) (+ (* 4294967296 (div (+ .cse0 2 (* .cse1 (- 2147483648)) .cse2) 2147483648)) 2 c_~i2~0 (* 4294967296 .cse3))) (< (mod |c_thread2Thread1of1ForFork1_#t~post6| 4294967296) .cse4) (< (mod (+ 4294967295 c_~i2~0) 4294967296) .cse4) (< (mod (+ |c_thread2Thread1of1ForFork1_#t~post6| 1) 4294967296) .cse4) (<= c_~i1~0 (+ (* 4294967296 (div (+ (* c_~i1~0 (- 1)) 4 (* (div c_~i1~0 4294967296) 8589934592)) 4294967296)) 4)) (< (mod c_~i2~0 4294967296) .cse4) (= (mod (+ 4294967294 c_~i2~0) 4294967296) 0) (= (mod (+ |c_thread2Thread1of1ForFork1_#t~post6| 4294967295) 4294967296) 0) (<= |c_thread2Thread1of1ForFork1_#t~post6| (+ (* 4294967296 (div (+ .cse0 2 (* (div (+ 4294967292 (* .cse3 (- 4294967296)) .cse5 (* |c_thread2Thread1of1ForFork1_#t~post6| (- 1))) 4294967296) (- 2147483648)) .cse2) 2147483648)) 4294967293)) (<= c_~i2~0 (+ (* 4294967296 .cse1) 4294967293)) (or (<= .cse4 (mod (+ 3 c_~i2~0) 4294967296)) (< (mod (+ c_~i2~0 4) 4294967296) .cse4)))))) is different from false [2021-11-13 19:02:28,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:03:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 19:03:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-13 19:03:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:03:43,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-13 19:03:43,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-13 19:03:43,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 19:03:43,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:03:43,536 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 19:03:43,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:03:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1834054316, now seen corresponding path program 6 times [2021-11-13 19:03:43,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:03:43,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417394474] [2021-11-13 19:03:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:03:43,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:03:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:03:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 144 proven. 648 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 19:03:50,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:03:50,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417394474] [2021-11-13 19:03:50,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417394474] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:03:50,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788720331] [2021-11-13 19:03:50,954 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-13 19:03:50,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:03:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:03:50,956 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:03:50,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71e0e46-3bfb-4569-8fc6-6474ff5b41e0/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 19:04:17,684 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-13 19:04:17,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:04:17,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-13 19:04:17,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:04:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 360 proven. 204 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-11-13 19:04:45,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:07:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 507 proven. 109 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-13 19:07:56,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788720331] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:07:56,384 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:07:56,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 32, 39] total 106 [2021-11-13 19:07:56,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38067105] [2021-11-13 19:07:56,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:07:56,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2021-11-13 19:07:56,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:07:56,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-11-13 19:07:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1563, Invalid=9567, Unknown=0, NotChecked=0, Total=11130 [2021-11-13 19:07:56,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:56,393 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:07:56,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 3.7641509433962264) internal successors, (399), 106 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:07:56,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:56,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 19:07:56,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 19:07:56,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:56,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-11-13 19:07:56,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-13 19:07:56,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:08:21,524 WARN L227 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 57 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 19:09:41,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:30,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:32,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:34,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:36,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:38,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:40,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:41,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:43,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 19:11:52,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []