./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA --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 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 09:44:47,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 09:44:47,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 09:44:47,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 09:44:47,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 09:44:47,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 09:44:47,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 09:44:47,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 09:44:47,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 09:44:47,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 09:44:47,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 09:44:47,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 09:44:47,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 09:44:47,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 09:44:47,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 09:44:47,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 09:44:47,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 09:44:47,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 09:44:47,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 09:44:47,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 09:44:47,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 09:44:47,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 09:44:47,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 09:44:47,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 09:44:47,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 09:44:47,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 09:44:47,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 09:44:47,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 09:44:47,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 09:44:47,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 09:44:47,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 09:44:47,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 09:44:47,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 09:44:47,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 09:44:47,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 09:44:47,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 09:44:47,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 09:44:47,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 09:44:47,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 09:44:47,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 09:44:47,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 09:44:47,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-12-07 09:44:47,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 09:44:47,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 09:44:47,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 09:44:47,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 09:44:47,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 09:44:47,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 09:44:47,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 09:44:47,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 09:44:47,232 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 09:44:47,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 09:44:47,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 09:44:47,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 09:44:47,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 09:44:47,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 09:44:47,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 09:44:47,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 09:44:47,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 09:44:47,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 09:44:47,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 09:44:47,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 09:44:47,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 09:44:47,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 09:44:47,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 09:44:47,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-12-07 09:44:47,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 09:44:47,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 09:44:47,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 09:44:47,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 09:44:47,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 09:44:47,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 09:44:47,238 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-12-07 09:44:47,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 09:44:47,238 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 09:44:47,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-12-07 09:44:47,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 09:44:47,239 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-12-07 09:44:47,239 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-12-07 09:44:47,240 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_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 [2021-12-07 09:44:47,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 09:44:47,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 09:44:47,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 09:44:47,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 09:44:47,485 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 09:44:47,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2021-12-07 09:44:47,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/data/a0ea5a828/72560b9ecee44deb8454f4ed5df287c0/FLAGf17cc5fcb [2021-12-07 09:44:48,115 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 09:44:48,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2021-12-07 09:44:48,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/data/a0ea5a828/72560b9ecee44deb8454f4ed5df287c0/FLAGf17cc5fcb [2021-12-07 09:44:48,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/data/a0ea5a828/72560b9ecee44deb8454f4ed5df287c0 [2021-12-07 09:44:48,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 09:44:48,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 09:44:48,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 09:44:48,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 09:44:48,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 09:44:48,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:44:48" (1/1) ... [2021-12-07 09:44:48,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f1cb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:48, skipping insertion in model container [2021-12-07 09:44:48,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:44:48" (1/1) ... [2021-12-07 09:44:48,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 09:44:48,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 09:44:49,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2021-12-07 09:44:49,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 09:44:49,072 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 09:44:49,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2021-12-07 09:44:49,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 09:44:49,187 INFO L208 MainTranslator]: Completed translation [2021-12-07 09:44:49,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49 WrapperNode [2021-12-07 09:44:49,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 09:44:49,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 09:44:49,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 09:44:49,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 09:44:49,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,238 INFO L137 Inliner]: procedures = 275, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 87 [2021-12-07 09:44:49,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 09:44:49,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 09:44:49,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 09:44:49,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 09:44:49,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 09:44:49,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 09:44:49,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 09:44:49,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 09:44:49,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (1/1) ... [2021-12-07 09:44:49,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 09:44:49,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:44:49,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 09:44:49,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 09:44:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-07 09:44:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-12-07 09:44:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-12-07 09:44:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 09:44:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 09:44:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 09:44:49,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 09:44:49,393 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 09:44:49,574 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 09:44:49,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 09:44:49,841 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 09:44:49,883 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 09:44:49,885 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 09:44:49,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:44:49 BoogieIcfgContainer [2021-12-07 09:44:49,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 09:44:49,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 09:44:49,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 09:44:49,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 09:44:49,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:44:48" (1/3) ... [2021-12-07 09:44:49,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd564df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:44:49, skipping insertion in model container [2021-12-07 09:44:49,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:44:49" (2/3) ... [2021-12-07 09:44:49,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd564df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:44:49, skipping insertion in model container [2021-12-07 09:44:49,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:44:49" (3/3) ... [2021-12-07 09:44:49,904 INFO L111 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2021-12-07 09:44:49,912 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 09:44:49,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 09:44:49,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 09:44:49,912 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 09:44:49,952 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,953 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,953 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,953 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,953 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,954 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,954 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,954 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,954 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,955 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,955 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,955 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,955 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,956 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,956 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,956 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,957 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,958 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,958 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,958 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,959 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,959 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,959 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,960 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,960 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,962 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,962 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,962 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,963 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,963 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,963 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,963 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,964 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,964 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,964 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,964 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,964 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,965 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,965 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,965 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,965 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,965 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,966 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,966 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,966 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,967 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,967 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,967 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,968 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,968 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,968 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,968 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,969 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,969 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,969 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,969 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,970 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,970 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,970 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,970 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,970 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,971 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,971 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,971 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,972 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,972 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,972 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,973 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,973 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,973 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,978 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,978 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,979 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,979 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,979 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,979 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,979 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,980 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,981 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,984 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,985 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:49,989 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-07 09:44:50,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-12-07 09:44:50,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:44:50,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-12-07 09:44:50,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-12-07 09:44:50,101 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-12-07 09:44:50,107 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 [2021-12-07 09:44:50,108 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 09:44:50,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:44:50,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1398713766, now seen corresponding path program 1 times [2021-12-07 09:44:50,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:50,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624018972] [2021-12-07 09:44:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:50,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:44:50,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:50,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624018972] [2021-12-07 09:44:50,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624018972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:50,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:50,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 09:44:50,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516429624] [2021-12-07 09:44:50,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:50,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 09:44:50,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 09:44:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 09:44:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,443 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:50,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:50,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 09:44:50,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:44:50,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1084832613, now seen corresponding path program 1 times [2021-12-07 09:44:50,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:50,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57065485] [2021-12-07 09:44:50,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:50,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:44:50,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:50,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57065485] [2021-12-07 09:44:50,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57065485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:50,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:50,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 09:44:50,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727457386] [2021-12-07 09:44:50,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:50,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 09:44:50,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:50,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 09:44:50,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 09:44:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,632 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:50,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:50,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:50,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 09:44:50,746 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:44:50,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:50,747 INFO L85 PathProgramCache]: Analyzing trace with hash 159761835, now seen corresponding path program 1 times [2021-12-07 09:44:50,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:50,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594622478] [2021-12-07 09:44:50,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:50,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:50,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:44:50,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:50,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594622478] [2021-12-07 09:44:50,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594622478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:50,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:50,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:44:50,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171054278] [2021-12-07 09:44:50,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:50,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:44:50,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:50,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:44:50,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:44:50,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,900 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:50,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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) [2021-12-07 09:44:50,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:50,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:50,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:51,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:44:51,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 09:44:51,064 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:44:51,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:51,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1142311927, now seen corresponding path program 1 times [2021-12-07 09:44:51,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:51,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112356314] [2021-12-07 09:44:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:51,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 09:44:51,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 09:44:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 09:44:51,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 09:44:51,211 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 09:44:51,212 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-12-07 09:44:51,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 09:44:51,230 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-07 09:44:51,231 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2021-12-07 09:44:51,231 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-07 09:44:51,232 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-12-07 09:44:51,255 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,255 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,255 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,255 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,262 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,262 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,262 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,262 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,262 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,264 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,267 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,286 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,289 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,289 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,301 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,303 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,303 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,303 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,304 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,305 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:44:51,305 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-07 09:44:51,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-12-07 09:44:51,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:44:51,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-12-07 09:44:51,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread2of2ForFork0 ======== [2021-12-07 09:44:51,336 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 [2021-12-07 09:44:51,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 09:44:51,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-12-07 09:44:51,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:51,458 INFO L85 PathProgramCache]: Analyzing trace with hash -834796945, now seen corresponding path program 1 times [2021-12-07 09:44:51,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:51,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141297723] [2021-12-07 09:44:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:51,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 09:44:51,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:51,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141297723] [2021-12-07 09:44:51,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141297723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:51,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:51,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 09:44:51,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246652164] [2021-12-07 09:44:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:51,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 09:44:51,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:51,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 09:44:51,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 09:44:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,546 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:51,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:51,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 09:44:51,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:51,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2145371913, now seen corresponding path program 1 times [2021-12-07 09:44:51,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:51,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527226975] [2021-12-07 09:44:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:51,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 09:44:51,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:51,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527226975] [2021-12-07 09:44:51,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527226975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:51,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:51,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:44:51,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93108116] [2021-12-07 09:44:51,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:51,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:44:51,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:44:51,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:44:51,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,647 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:51,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:51,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:51,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 09:44:51,838 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:51,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1649748596, now seen corresponding path program 1 times [2021-12-07 09:44:51,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:51,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64151309] [2021-12-07 09:44:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:51,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 09:44:52,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:52,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64151309] [2021-12-07 09:44:52,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64151309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:52,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:52,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 09:44:52,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895029877] [2021-12-07 09:44:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:52,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 09:44:52,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 09:44:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 09:44:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,014 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:52,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:52,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:52,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:52,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 09:44:52,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:52,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:52,148 INFO L85 PathProgramCache]: Analyzing trace with hash -494400955, now seen corresponding path program 1 times [2021-12-07 09:44:52,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:52,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2279660] [2021-12-07 09:44:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:52,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 09:44:52,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2279660] [2021-12-07 09:44:52,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2279660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:44:52,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:44:52,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:44:52,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340609482] [2021-12-07 09:44:52,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:44:52,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:44:52,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:44:52,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:44:52,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,234 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:52,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:52,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:52,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:44:52,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 09:44:52,389 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash -795083145, now seen corresponding path program 1 times [2021-12-07 09:44:52,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:52,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069492818] [2021-12-07 09:44:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:52,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:52,539 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 09:44:52,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:52,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069492818] [2021-12-07 09:44:52,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069492818] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:44:52,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174268093] [2021-12-07 09:44:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:52,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:44:52,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:44:52,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:44:52,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 09:44:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:52,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 09:44:52,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:44:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 09:44:53,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:44:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 09:44:53,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174268093] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:44:53,321 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:44:53,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-07 09:44:53,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906983584] [2021-12-07 09:44:53,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:44:53,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 09:44:53,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:53,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 09:44:53,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-07 09:44:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:53,325 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:53,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.363636363636363) internal successors, (202), 11 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:53,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:53,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:53,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:53,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:44:53,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:44:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:44:53,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-07 09:44:53,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:44:53,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:53,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:53,905 INFO L85 PathProgramCache]: Analyzing trace with hash -304586149, now seen corresponding path program 1 times [2021-12-07 09:44:53,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:53,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891584187] [2021-12-07 09:44:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:53,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 09:44:54,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:54,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891584187] [2021-12-07 09:44:54,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891584187] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:44:54,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227642361] [2021-12-07 09:44:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:54,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:44:54,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:44:54,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:44:54,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 09:44:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:54,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-07 09:44:54,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:44:54,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:44:54,862 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:54,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:54,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:44:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 10 proven. 63 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-07 09:44:54,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:44:55,358 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 09:44:55,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227642361] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:44:55,359 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:44:55,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 27 [2021-12-07 09:44:55,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757189645] [2021-12-07 09:44:55,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:44:55,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-07 09:44:55,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-07 09:44:55,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2021-12-07 09:44:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:55,363 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:55,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.555555555555555) internal successors, (258), 27 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:44:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:44:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:44:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:44:56,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 09:44:56,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-07 09:44:56,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:44:56,275 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1863024128, now seen corresponding path program 2 times [2021-12-07 09:44:56,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:56,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669432463] [2021-12-07 09:44:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:56,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:44:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:44:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 259 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-07 09:44:56,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:44:56,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669432463] [2021-12-07 09:44:56,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669432463] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:44:56,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894757983] [2021-12-07 09:44:56,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:44:56,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:44:56,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:44:56,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:44:56,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 09:44:56,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 09:44:56,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:44:56,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-07 09:44:56,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:44:57,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:44:57,310 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,335 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,451 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,481 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,571 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,591 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,719 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:44:57,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:44:57,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:44:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 10 proven. 249 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-07 09:44:57,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:44:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 10 proven. 249 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-07 09:44:58,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894757983] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:44:58,858 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:44:58,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 32 [2021-12-07 09:44:58,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819466495] [2021-12-07 09:44:58,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:44:58,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-07 09:44:58,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:44:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-07 09:44:58,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=850, Unknown=0, NotChecked=0, Total=992 [2021-12-07 09:44:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:58,862 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:44:58,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.21875) internal successors, (327), 32 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:44:58,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:58,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:58,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:58,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:44:58,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:44:58,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-12-07 09:44:58,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:59,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:44:59,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:44:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:44:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:44:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:44:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 09:44:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-07 09:44:59,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-07 09:44:59,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-07 09:44:59,932 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:44:59,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:44:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2003802643, now seen corresponding path program 3 times [2021-12-07 09:44:59,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:44:59,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089959420] [2021-12-07 09:44:59,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:44:59,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 718 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:45:00,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:00,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089959420] [2021-12-07 09:45:00,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089959420] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:00,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460592928] [2021-12-07 09:45:00,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 09:45:00,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:00,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:00,318 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:00,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 09:45:01,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-07 09:45:01,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:01,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 09:45:01,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 863 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:45:01,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:45:01,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460592928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:45:01,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:45:01,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [17] total 19 [2021-12-07 09:45:01,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532991049] [2021-12-07 09:45:01,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:45:01,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-07 09:45:01,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:01,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-07 09:45:01,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-12-07 09:45:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:01,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:01,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.4375) internal successors, (263), 16 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:01,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:01,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:45:01,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-12-07 09:45:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-12-07 09:45:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:45:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-07 09:45:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-12-07 09:45:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:02,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-07 09:45:03,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:03,075 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:03,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:03,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1128583224, now seen corresponding path program 4 times [2021-12-07 09:45:03,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:03,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001474506] [2021-12-07 09:45:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:03,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-07 09:45:03,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:03,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001474506] [2021-12-07 09:45:03,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001474506] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:03,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212934251] [2021-12-07 09:45:03,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 09:45:03,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:03,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:03,438 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:03,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 09:45:03,630 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 09:45:03,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:03,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 09:45:03,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:03,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:45:03,941 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:45:03,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 34 [2021-12-07 09:45:03,989 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:45:03,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 42 [2021-12-07 09:45:04,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:45:04,067 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2021-12-07 09:45:04,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:45:04,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212934251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:45:04,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:45:04,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 21 [2021-12-07 09:45:04,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391031508] [2021-12-07 09:45:04,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:45:04,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 09:45:04,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:04,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 09:45:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-12-07 09:45:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:04,070 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:04,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:04,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:04,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:04,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 09:45:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-07 09:45:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-07 09:45:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:04,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-07 09:45:04,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-07 09:45:04,683 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2091323622, now seen corresponding path program 5 times [2021-12-07 09:45:04,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:04,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520979456] [2021-12-07 09:45:04,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:04,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-07 09:45:05,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:05,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520979456] [2021-12-07 09:45:05,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520979456] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:05,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697870194] [2021-12-07 09:45:05,105 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 09:45:05,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:05,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:05,110 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:05,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 09:45:06,652 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-12-07 09:45:06,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-07 09:45:06,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:07,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:45:07,217 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:45:07,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:45:07,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:45:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 17 proven. 570 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-07 09:45:07,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:45:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 10 proven. 578 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-07 09:45:08,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697870194] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:45:08,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:45:08,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 17] total 33 [2021-12-07 09:45:08,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103467377] [2021-12-07 09:45:08,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:45:08,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-07 09:45:08,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:08,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-07 09:45:08,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2021-12-07 09:45:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:08,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:08,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 11.181818181818182) internal successors, (369), 33 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-12-07 09:45:08,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-12-07 09:45:08,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:08,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:08,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-07 09:45:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-12-07 09:45:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-07 09:45:10,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-07 09:45:10,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-07 09:45:10,531 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1899277450, now seen corresponding path program 2 times [2021-12-07 09:45:10,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:10,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544939989] [2021-12-07 09:45:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:10,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 31 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:45:10,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:10,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544939989] [2021-12-07 09:45:10,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544939989] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:10,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091618675] [2021-12-07 09:45:10,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:45:10,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:10,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:10,689 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:10,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 09:45:10,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 09:45:10,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:10,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 09:45:10,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:10,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 09:45:10,934 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 09:45:10,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 09:45:11,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:45:11,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-07 09:45:11,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:45:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-07 09:45:11,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:45:11,342 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_890 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_890) c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread2of2ForFork0_~c~0#1| 4))) 1)) is different from false [2021-12-07 09:45:11,350 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 09:45:11,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2021-12-07 09:45:11,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-12-07 09:45:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 134 trivial. 2 not checked. [2021-12-07 09:45:11,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091618675] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:45:11,667 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:45:11,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 19 [2021-12-07 09:45:11,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463754940] [2021-12-07 09:45:11,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:45:11,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-07 09:45:11,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-07 09:45:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=260, Unknown=1, NotChecked=32, Total=342 [2021-12-07 09:45:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:11,669 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:11,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.947368421052632) internal successors, (284), 19 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:11,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:11,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-12-07 09:45:11,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:18,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-12-07 09:45:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-07 09:45:18,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-07 09:45:18,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-07 09:45:18,509 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:18,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:18,511 INFO L85 PathProgramCache]: Analyzing trace with hash -810355395, now seen corresponding path program 1 times [2021-12-07 09:45:18,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:18,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633295971] [2021-12-07 09:45:18,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:18,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-07 09:45:18,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:18,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633295971] [2021-12-07 09:45:18,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633295971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:45:18,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:45:18,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:45:18,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535243635] [2021-12-07 09:45:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:45:18,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:45:18,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:18,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:45:18,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:45:18,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:18,685 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:18,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:18,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:18,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:18,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-12-07 09:45:18,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-12-07 09:45:18,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-12-07 09:45:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:22,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 09:45:22,022 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1984756732, now seen corresponding path program 1 times [2021-12-07 09:45:22,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:22,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177358276] [2021-12-07 09:45:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:22,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 0 proven. 467 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:45:22,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:22,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177358276] [2021-12-07 09:45:22,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177358276] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:22,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570622106] [2021-12-07 09:45:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:22,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:22,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:22,862 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:22,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 09:45:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:23,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 09:45:23,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-12-07 09:45:23,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:45:23,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570622106] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:45:23,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:45:23,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [25] total 26 [2021-12-07 09:45:23,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395694424] [2021-12-07 09:45:23,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:45:23,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 09:45:23,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:23,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 09:45:23,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-12-07 09:45:23,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:23,315 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:23,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:23,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:23,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:23,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:23,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:23,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:23,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:25,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-07 09:45:25,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-07 09:45:25,635 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:25,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1091925749, now seen corresponding path program 1 times [2021-12-07 09:45:25,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:25,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857167334] [2021-12-07 09:45:25,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:25,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-12-07 09:45:25,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:25,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857167334] [2021-12-07 09:45:25,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857167334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:45:25,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:45:25,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:45:25,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604626729] [2021-12-07 09:45:25,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:45:25,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:45:25,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:25,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:45:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:45:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:25,736 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:25,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:25,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:25,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:25,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2021-12-07 09:45:25,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:25,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:25,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:25,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:45:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:45:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:26,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 09:45:26,878 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:26,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash -919089296, now seen corresponding path program 6 times [2021-12-07 09:45:26,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:26,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965800780] [2021-12-07 09:45:26,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:26,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2021-12-07 09:45:27,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:27,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965800780] [2021-12-07 09:45:27,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965800780] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:27,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672160750] [2021-12-07 09:45:27,187 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-07 09:45:27,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:27,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:27,189 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:27,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 09:45:29,926 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-12-07 09:45:29,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:29,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-07 09:45:29,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:30,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:45:30,632 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:45:30,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:45:30,677 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-07 09:45:30,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2021-12-07 09:45:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 21 proven. 171 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2021-12-07 09:45:30,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:45:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 12 proven. 189 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2021-12-07 09:45:31,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672160750] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:45:31,403 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:45:31,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 13] total 28 [2021-12-07 09:45:31,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194930537] [2021-12-07 09:45:31,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:45:31,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-07 09:45:31,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-07 09:45:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2021-12-07 09:45:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:31,408 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:31,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.25) internal successors, (259), 28 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:31,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:31,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:31,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:45:31,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:31,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:31,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:31,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:31,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:45:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-07 09:45:32,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-07 09:45:32,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:32,575 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:32,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2145035413, now seen corresponding path program 7 times [2021-12-07 09:45:32,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:32,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173119718] [2021-12-07 09:45:32,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:32,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 1210 proven. 242 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:45:32,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:32,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173119718] [2021-12-07 09:45:32,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173119718] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:32,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627541004] [2021-12-07 09:45:32,901 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-07 09:45:32,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:32,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:32,917 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:32,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-07 09:45:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:33,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 09:45:33,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:33,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 1424 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-07 09:45:33,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:45:33,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627541004] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:45:33,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:45:33,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 19 [2021-12-07 09:45:33,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213724109] [2021-12-07 09:45:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:45:33,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 09:45:33,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 09:45:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-12-07 09:45:33,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:33,887 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:33,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.857142857142858) internal successors, (334), 14 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:33,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:33,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:33,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:33,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:33,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-12-07 09:45:33,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:34,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-12-07 09:45:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:34,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-07 09:45:34,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:34,534 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:34,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1264703297, now seen corresponding path program 8 times [2021-12-07 09:45:34,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:34,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699974105] [2021-12-07 09:45:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:34,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:34,880 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-12-07 09:45:34,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:34,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699974105] [2021-12-07 09:45:34,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699974105] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:34,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770384048] [2021-12-07 09:45:34,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:45:34,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:34,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:34,886 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:34,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-07 09:45:35,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 09:45:35,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:35,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 31 conjunts are in the unsatisfiable core [2021-12-07 09:45:35,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:35,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:45:35,723 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:45:35,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:45:35,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:45:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 12 proven. 400 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-12-07 09:45:35,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:45:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 12 proven. 401 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-12-07 09:45:36,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770384048] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:45:36,436 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:45:36,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 16] total 33 [2021-12-07 09:45:36,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986602113] [2021-12-07 09:45:36,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:45:36,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-07 09:45:36,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:36,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-07 09:45:36,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=887, Unknown=0, NotChecked=0, Total=1056 [2021-12-07 09:45:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:36,439 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:36,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 10.242424242424242) internal successors, (338), 33 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:36,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-12-07 09:45:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:36,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-12-07 09:45:39,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-07 09:45:39,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-07 09:45:39,516 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:45:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:45:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 846193816, now seen corresponding path program 9 times [2021-12-07 09:45:39,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:45:39,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280492545] [2021-12-07 09:45:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:45:39,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:45:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:45:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 537 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:45:39,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:45:39,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280492545] [2021-12-07 09:45:39,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280492545] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:45:39,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721921729] [2021-12-07 09:45:39,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 09:45:39,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:45:39,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:45:39,891 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:45:39,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-07 09:45:40,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-07 09:45:40,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:45:40,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 09:45:40,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:45:40,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:45:40,595 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:45:40,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:45:40,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:45:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2021-12-07 09:45:40,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:45:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2021-12-07 09:45:41,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721921729] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:45:41,167 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:45:41,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 31 [2021-12-07 09:45:41,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929756137] [2021-12-07 09:45:41,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:45:41,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-07 09:45:41,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:45:41,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-07 09:45:41,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2021-12-07 09:45:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:41,172 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:45:41,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 11.580645161290322) internal successors, (359), 31 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:45:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-12-07 09:45:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2021-12-07 09:46:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2021-12-07 09:46:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2021-12-07 09:46:04,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 09:46:04,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-07 09:46:04,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-07 09:46:04,793 INFO L732 BasicCegarLoop]: Path program histogram: [9, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 09:46:04,793 INFO L308 ceAbstractionStarter]: Result for error location thrThread2of2ForFork0 was SAFE (1/3) [2021-12-07 09:46:04,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-12-07 09:46:04,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:04,802 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-12-07 09:46:04,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2021-12-07 09:46:04,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of2ForFork0 ======== [2021-12-07 09:46:04,816 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 [2021-12-07 09:46:04,817 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 09:46:04,927 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash -825571543, now seen corresponding path program 1 times [2021-12-07 09:46:04,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:04,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562452602] [2021-12-07 09:46:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:04,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:46:04,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:04,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562452602] [2021-12-07 09:46:04,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562452602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:46:04,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:46:04,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 09:46:04,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707803732] [2021-12-07 09:46:04,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:46:04,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 09:46:04,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 09:46:04,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 09:46:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:04,958 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:04,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:04,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:04,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:04,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 09:46:04,965 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:04,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:04,966 INFO L85 PathProgramCache]: Analyzing trace with hash -615115134, now seen corresponding path program 1 times [2021-12-07 09:46:04,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:04,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956758883] [2021-12-07 09:46:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:04,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:46:05,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:05,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956758883] [2021-12-07 09:46:05,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956758883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:46:05,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:46:05,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:46:05,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054950809] [2021-12-07 09:46:05,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:46:05,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:46:05,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:05,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:46:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:46:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,020 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:05,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:05,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:05,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 09:46:05,144 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1870299341, now seen corresponding path program 1 times [2021-12-07 09:46:05,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:05,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298723353] [2021-12-07 09:46:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:05,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:46:05,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:05,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298723353] [2021-12-07 09:46:05,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298723353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:46:05,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:46:05,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:46:05,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854912436] [2021-12-07 09:46:05,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:46:05,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:46:05,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:05,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:46:05,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:46:05,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,190 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:05,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:05,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:05,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:05,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 09:46:05,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:05,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:05,243 INFO L85 PathProgramCache]: Analyzing trace with hash 168469500, now seen corresponding path program 1 times [2021-12-07 09:46:05,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:05,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949461268] [2021-12-07 09:46:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:05,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-07 09:46:05,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:05,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949461268] [2021-12-07 09:46:05,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949461268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:46:05,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:46:05,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:46:05,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176630039] [2021-12-07 09:46:05,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:46:05,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:46:05,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:05,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:46:05,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:46:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,304 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:05,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:05,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:05,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:05,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:05,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 09:46:05,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:05,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1921143300, now seen corresponding path program 1 times [2021-12-07 09:46:05,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:05,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743484413] [2021-12-07 09:46:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:05,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-07 09:46:05,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:05,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743484413] [2021-12-07 09:46:05,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743484413] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:46:05,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663317510] [2021-12-07 09:46:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:05,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:05,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:06,022 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:46:06,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-07 09:46:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:06,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-07 09:46:06,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:46:06,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:46:06,586 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:06,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:06,604 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:06,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:06,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:46:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 14 proven. 99 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 09:46:06,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:46:07,031 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 10 proven. 107 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-07 09:46:07,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663317510] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:46:07,032 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:46:07,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 27 [2021-12-07 09:46:07,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734561345] [2021-12-07 09:46:07,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:46:07,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-07 09:46:07,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:07,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-07 09:46:07,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2021-12-07 09:46:07,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:07,034 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:07,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.444444444444445) internal successors, (282), 27 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:07,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:07,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:07,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:07,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:07,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-07 09:46:07,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-07 09:46:07,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-07 09:46:07,985 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash -394254797, now seen corresponding path program 2 times [2021-12-07 09:46:07,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:07,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554363524] [2021-12-07 09:46:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:07,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 2 proven. 439 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-07 09:46:08,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:08,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554363524] [2021-12-07 09:46:08,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554363524] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:46:08,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535832031] [2021-12-07 09:46:08,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:46:08,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:08,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:08,305 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:46:08,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-07 09:46:08,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 09:46:08,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:46:08,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 09:46:08,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:46:08,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:46:08,821 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:46:08,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 34 [2021-12-07 09:46:08,859 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:46:08,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 42 [2021-12-07 09:46:08,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:46:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-12-07 09:46:08,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:46:08,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535832031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:46:08,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:46:08,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 21 [2021-12-07 09:46:08,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171822360] [2021-12-07 09:46:08,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:46:08,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 09:46:08,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:08,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 09:46:08,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-12-07 09:46:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:08,945 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:08,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:08,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:08,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:46:08,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:08,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:08,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-12-07 09:46:08,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 09:46:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-07 09:46:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 09:46:09,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-07 09:46:09,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:09,366 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:09,368 INFO L85 PathProgramCache]: Analyzing trace with hash 627629027, now seen corresponding path program 3 times [2021-12-07 09:46:09,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:09,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114677432] [2021-12-07 09:46:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:09,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 519 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-12-07 09:46:09,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114677432] [2021-12-07 09:46:09,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114677432] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:46:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014724130] [2021-12-07 09:46:09,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 09:46:09,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:09,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:09,804 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:46:09,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-07 09:46:10,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-07 09:46:10,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:46:10,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-07 09:46:10,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:46:10,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:46:10,824 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:10,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:10,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:46:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 391 proven. 186 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-07 09:46:10,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:46:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 391 proven. 186 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-07 09:46:11,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014724130] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:46:11,467 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:46:11,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15] total 34 [2021-12-07 09:46:11,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804074932] [2021-12-07 09:46:11,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:46:11,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-07 09:46:11,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:11,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-07 09:46:11,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 09:46:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:11,470 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:11,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 15.911764705882353) internal successors, (541), 34 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-12-07 09:46:11,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-12-07 09:46:16,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-07 09:46:16,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-07 09:46:16,488 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:16,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:16,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1766727430, now seen corresponding path program 4 times [2021-12-07 09:46:16,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:16,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021721426] [2021-12-07 09:46:16,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:16,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-07 09:46:16,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:16,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021721426] [2021-12-07 09:46:16,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021721426] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:46:16,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382510742] [2021-12-07 09:46:16,642 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 09:46:16,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:16,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:16,643 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:46:16,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-07 09:46:16,830 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 09:46:16,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:46:16,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 09:46:16,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:46:16,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 09:46:16,886 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 09:46:16,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 09:46:17,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:46:17,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-07 09:46:17,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:46:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-07 09:46:17,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:46:17,091 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2276 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_2276) c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1)) is different from false [2021-12-07 09:46:17,106 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 09:46:17,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2021-12-07 09:46:17,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-12-07 09:46:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 2 not checked. [2021-12-07 09:46:17,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382510742] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:46:17,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:46:17,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2021-12-07 09:46:17,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787359237] [2021-12-07 09:46:17,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:46:17,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 09:46:17,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:17,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 09:46:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2021-12-07 09:46:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:17,355 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:17,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:17,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:17,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:17,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:17,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:46:17,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-12-07 09:46:17,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:17,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-12-07 09:46:17,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-12-07 09:46:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:46:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2021-12-07 09:46:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:25,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-07 09:46:25,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:25,186 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:25,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2129090756, now seen corresponding path program 1 times [2021-12-07 09:46:25,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:25,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992340952] [2021-12-07 09:46:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:25,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-12-07 09:46:25,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:25,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992340952] [2021-12-07 09:46:25,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992340952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:46:25,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:46:25,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:46:25,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681056142] [2021-12-07 09:46:25,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:46:25,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:46:25,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:25,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:46:25,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:46:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:25,312 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:25,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:25,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:25,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:25,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:25,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:25,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-12-07 09:46:25,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:46:25,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 270 states. [2021-12-07 09:46:25,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:25,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-12-07 09:46:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:46:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 302 states. [2021-12-07 09:46:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:28,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-07 09:46:28,821 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1406532004, now seen corresponding path program 5 times [2021-12-07 09:46:28,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:28,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838162044] [2021-12-07 09:46:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:28,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 36 proven. 306 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-07 09:46:29,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:29,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838162044] [2021-12-07 09:46:29,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838162044] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:46:29,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604759359] [2021-12-07 09:46:29,113 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 09:46:29,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:29,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:29,117 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:46:29,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-07 09:46:29,734 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-12-07 09:46:29,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:46:29,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-07 09:46:29,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:46:30,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:46:30,131 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:30,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:30,150 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:30,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:30,233 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:30,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:30,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:46:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 54 proven. 288 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-07 09:46:30,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:46:30,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-12-07 09:46:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 46 proven. 296 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-07 09:46:31,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604759359] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:46:31,129 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:46:31,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 18] total 35 [2021-12-07 09:46:31,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648676293] [2021-12-07 09:46:31,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:46:31,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-12-07 09:46:31,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:31,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-12-07 09:46:31,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1006, Unknown=0, NotChecked=0, Total=1190 [2021-12-07 09:46:31,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:31,131 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:31,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.257142857142858) internal successors, (359), 35 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 302 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-12-07 09:46:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:46:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2021-12-07 09:46:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-12-07 09:46:37,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-12-07 09:46:37,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:37,674 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:46:37,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:46:37,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1556677550, now seen corresponding path program 6 times [2021-12-07 09:46:37,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:46:37,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693931151] [2021-12-07 09:46:37,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:46:37,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:46:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:46:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 991 proven. 157 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 09:46:37,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:46:37,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693931151] [2021-12-07 09:46:37,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693931151] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:46:37,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133650354] [2021-12-07 09:46:37,953 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-07 09:46:37,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:46:37,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:46:37,954 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:46:37,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-12-07 09:46:38,457 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-12-07 09:46:38,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:46:38,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-07 09:46:38,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:46:38,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:46:39,031 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:39,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:39,047 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:46:39,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:46:39,187 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-12-07 09:46:39,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-12-07 09:46:39,227 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-07 09:46:39,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2021-12-07 09:46:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 78 proven. 492 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-12-07 09:46:39,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:46:41,386 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (forall ((v_ArrVal_2640 Int)) (= (select (store (select |c_#memory_int| c_~data~0.base) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1)) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)))) is different from false [2021-12-07 09:46:42,084 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2640 Int) (|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (= (select (store (store (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread2of2ForFork0_~c~0#1| 4)) 1) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)))) is different from false [2021-12-07 09:46:42,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-12-07 09:46:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 76 proven. 456 refuted. 0 times theorem prover too weak. 580 trivial. 38 not checked. [2021-12-07 09:46:42,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133650354] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:46:42,993 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:46:42,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15] total 41 [2021-12-07 09:46:42,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476222497] [2021-12-07 09:46:42,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:46:42,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-07 09:46:42,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:46:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-07 09:46:42,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1282, Unknown=2, NotChecked=150, Total=1640 [2021-12-07 09:46:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:42,996 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:46:42,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 14.463414634146341) internal successors, (593), 41 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:46:42,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:42,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:46:42,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:42,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:46:42,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-12-07 09:46:42,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:46:42,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2021-12-07 09:46:42,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:46:42,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:46:42,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-12-07 09:46:42,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:46:46,431 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2640 Int) (|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (= (select (store (store (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread2of2ForFork0_~c~0#1| 4)) 1) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)))) (<= |c_thrThread1of2ForFork0_~end~0#1| |c_thrThread2of2ForFork0_~c~0#1|) (< |c_thrThread1of2ForFork0_~c~0#1| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)) (<= |c_thrThread1of2ForFork0_~end~0#1| 10) (= |c_thrThread1of2ForFork0_~c~0#1| 0) (= (select (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1)) is different from false [2021-12-07 09:46:47,051 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2640 Int) (|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (= (select (store (store (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread2of2ForFork0_~c~0#1| 4)) 1) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)))) (<= |c_thrThread1of2ForFork0_~end~0#1| |c_thrThread2of2ForFork0_~c~0#1|)) is different from false [2021-12-07 09:46:48,407 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_thrThread2of2ForFork0_~c~0#1| 1))) (and (forall ((v_ArrVal_2640 Int) (|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (= (select (store (store (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread2of2ForFork0_~c~0#1| 4)) 1) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)))) (<= |c_thrThread1of2ForFork0_~end~0#1| .cse0) (< |c_thrThread1of2ForFork0_~c~0#1| .cse0) (<= 1 |c_thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1|) (= (select (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1) (<= 1 |c_thrThread1of2ForFork0___VERIFIER_assert_~cond#1|) (<= |c_thrThread1of2ForFork0_~end~0#1| (+ 9 |c_thrThread1of2ForFork0_~c~0#1|)))) is different from false [2021-12-07 09:47:01,938 WARN L838 $PredicateComparison]: unable to prove that (and (<= |c_thrThread1of2ForFork0_~end~0#1| (+ 2 |c_thrThread2of2ForFork0_~c~0#1|)) (forall ((|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (forall ((v_ArrVal_2640 Int)) (= (select (store (select |c_#memory_int| c_~data~0.base) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1)) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1))))) is different from false [2021-12-07 09:47:09,135 WARN L838 $PredicateComparison]: unable to prove that (and (<= |c_thrThread1of2ForFork0_~end~0#1| |c_thrThread2of2ForFork0_~c~0#1|) (forall ((|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (forall ((v_ArrVal_2640 Int)) (= (select (store (select |c_#memory_int| c_~data~0.base) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1)) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1))))) is different from false [2021-12-07 09:47:10,740 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2640 Int) (|v_thrThread2of2ForFork0_~c~0#1_166| Int)) (or (= (select (store (store (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread2of2ForFork0_~c~0#1| 4)) 1) (+ (* |v_thrThread2of2ForFork0_~c~0#1_166| 4) c_~data~0.offset) v_ArrVal_2640) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1) (< |v_thrThread2of2ForFork0_~c~0#1_166| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)))) (<= |c_thrThread1of2ForFork0_~end~0#1| |c_thrThread2of2ForFork0_~c~0#1|) (< |c_thrThread1of2ForFork0_~c~0#1| (+ |c_thrThread2of2ForFork0_~c~0#1| 1)) (<= |c_thrThread1of2ForFork0_~end~0#1| 10) (= |c_thrThread1of2ForFork0_~c~0#1| 0) (<= |c_thrThread1of2ForFork0_~end~0#1| c_~next~0) (= (select (select |c_#memory_int| c_~data~0.base) (+ c_~data~0.offset (* |c_thrThread1of2ForFork0_~c~0#1| 4))) 1)) is different from false [2021-12-07 09:47:23,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 341 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2021-12-07 09:47:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2021-12-07 09:47:23,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-12-07 09:47:23,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:23,945 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1552996201, now seen corresponding path program 7 times [2021-12-07 09:47:23,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:23,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411918364] [2021-12-07 09:47:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:23,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:24,143 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 12 proven. 59 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-12-07 09:47:24,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:24,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411918364] [2021-12-07 09:47:24,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411918364] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:24,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760059940] [2021-12-07 09:47:24,146 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-07 09:47:24,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:24,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:24,149 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:24,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-07 09:47:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:24,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 09:47:24,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2021-12-07 09:47:24,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:47:24,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760059940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:24,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:47:24,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-07 09:47:24,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748663332] [2021-12-07 09:47:24,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:24,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 09:47:24,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:24,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 09:47:24,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-07 09:47:24,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:24,821 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:24,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 341 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:24,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2021-12-07 09:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2021-12-07 09:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2021-12-07 09:47:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2021-12-07 09:47:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2021-12-07 09:47:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:47:25,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:25,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-12-07 09:47:25,907 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1689191843, now seen corresponding path program 8 times [2021-12-07 09:47:25,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:25,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614908580] [2021-12-07 09:47:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:25,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 1728 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:47:26,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:26,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614908580] [2021-12-07 09:47:26,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614908580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:26,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:26,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-07 09:47:26,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969771787] [2021-12-07 09:47:26,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:26,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-07 09:47:26,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-07 09:47:26,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-12-07 09:47:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:26,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:26,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 23.6875) internal successors, (379), 16 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:26,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:26,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:26,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:26,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 224 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 259 states. [2021-12-07 09:47:26,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:47:26,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2021-12-07 09:47:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2021-12-07 09:47:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:47:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:26,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-07 09:47:26,473 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:26,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 985450157, now seen corresponding path program 9 times [2021-12-07 09:47:26,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:26,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612179371] [2021-12-07 09:47:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:26,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2021-12-07 09:47:27,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:27,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612179371] [2021-12-07 09:47:27,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612179371] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:27,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170119396] [2021-12-07 09:47:27,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 09:47:27,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:27,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:27,015 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:27,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-07 09:47:28,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-12-07 09:47:28,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:47:28,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-07 09:47:28,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:28,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:47:28,921 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:47:28,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:47:28,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:47:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 912 proven. 63 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:47:28,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 912 proven. 63 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:47:29,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170119396] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:29,655 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:29,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 19] total 42 [2021-12-07 09:47:29,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46809337] [2021-12-07 09:47:29,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:29,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-07 09:47:29,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:29,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-07 09:47:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1419, Unknown=0, NotChecked=0, Total=1722 [2021-12-07 09:47:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:29,659 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:29,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 15.738095238095237) internal successors, (661), 42 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:29,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:29,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:29,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:29,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:29,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:47:29,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 259 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:29,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 346 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 09:47:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2021-12-07 09:47:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2021-12-07 09:47:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 09:47:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2021-12-07 09:47:43,556 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 09:47:43,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:43,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-12-07 09:47:43,770 INFO L732 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1] [2021-12-07 09:47:43,771 INFO L308 ceAbstractionStarter]: Result for error location thrThread1of2ForFork0 was SAFE (2/3) [2021-12-07 09:47:43,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-12-07 09:47:43,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:43,786 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-12-07 09:47:43,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (25)] Waiting until timeout for monitored process [2021-12-07 09:47:43,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-12-07 09:47:43,806 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 [2021-12-07 09:47:43,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 09:47:43,855 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:43,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 963783053, now seen corresponding path program 1 times [2021-12-07 09:47:43,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:43,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835526995] [2021-12-07 09:47:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:43,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-07 09:47:43,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:43,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835526995] [2021-12-07 09:47:43,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835526995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:43,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:43,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 09:47:43,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493240853] [2021-12-07 09:47:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:43,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 09:47:43,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 09:47:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 09:47:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,875 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:43,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:43,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-07 09:47:43,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:43,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1038192372, now seen corresponding path program 1 times [2021-12-07 09:47:43,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:43,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528450059] [2021-12-07 09:47:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:43,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:47:43,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:43,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528450059] [2021-12-07 09:47:43,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528450059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:43,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:43,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:47:43,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148010449] [2021-12-07 09:47:43,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:43,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:47:43,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:43,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:47:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:47:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,918 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:43,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:43,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-07 09:47:43,957 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:43,958 INFO L85 PathProgramCache]: Analyzing trace with hash -610866281, now seen corresponding path program 1 times [2021-12-07 09:47:43,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:43,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406727883] [2021-12-07 09:47:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:43,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:44,003 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 09:47:44,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:44,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406727883] [2021-12-07 09:47:44,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406727883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:44,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:44,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:47:44,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363653735] [2021-12-07 09:47:44,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:44,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:47:44,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:44,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:47:44,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:47:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,006 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:44,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 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) [2021-12-07 09:47:44,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:44,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:44,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-07 09:47:44,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:44,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:44,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1313380245, now seen corresponding path program 1 times [2021-12-07 09:47:44,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:44,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814002842] [2021-12-07 09:47:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:44,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:47:44,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:44,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814002842] [2021-12-07 09:47:44,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814002842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:44,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:44,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 09:47:44,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524482113] [2021-12-07 09:47:44,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:44,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 09:47:44,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:44,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 09:47:44,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 09:47:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,146 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:44,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:44,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:44,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:44,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:44,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:47:44,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-07 09:47:44,205 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:44,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:44,207 INFO L85 PathProgramCache]: Analyzing trace with hash -504833882, now seen corresponding path program 1 times [2021-12-07 09:47:44,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:44,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661611453] [2021-12-07 09:47:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:44,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 09:47:44,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:44,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661611453] [2021-12-07 09:47:44,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661611453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:44,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:44,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:47:44,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049318740] [2021-12-07 09:47:44,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:44,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:47:44,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:44,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:47:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:47:44,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,254 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:44,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2021-12-07 09:47:44,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:44,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:44,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:47:44,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:47:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:44,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-07 09:47:44,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:44,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2124743512, now seen corresponding path program 1 times [2021-12-07 09:47:44,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:44,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423275195] [2021-12-07 09:47:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:44,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:47:44,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:44,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423275195] [2021-12-07 09:47:44,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423275195] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:44,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705254035] [2021-12-07 09:47:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:44,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:44,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:44,425 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:44,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-12-07 09:47:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:44,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 09:47:44,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:47:45,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:47:45,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705254035] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:45,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:45,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-07 09:47:45,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375651264] [2021-12-07 09:47:45,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:45,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 09:47:45,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 09:47:45,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-07 09:47:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:45,252 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:45,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.181818181818183) internal successors, (200), 11 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:45,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:45,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:45,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:45,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:47:45,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:45,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 09:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:45,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:45,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:45,544 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-07 09:47:45,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:45,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1280306715, now seen corresponding path program 1 times [2021-12-07 09:47:45,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:45,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989709735] [2021-12-07 09:47:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:45,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 09:47:45,596 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 09:47:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 09:47:45,646 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 09:47:45,647 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 09:47:45,647 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-12-07 09:47:45,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-07 09:47:45,648 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-07 09:47:45,648 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (3/3) [2021-12-07 09:47:45,649 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-07 09:47:45,649 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-12-07 09:47:45,658 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,664 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,665 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,665 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,665 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,665 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,665 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,665 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,666 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,667 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,668 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,672 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,673 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,674 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,675 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 09:47:45,695 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-07 09:47:45,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-12-07 09:47:45,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:45,697 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-12-07 09:47:45,703 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of3ForFork0 ======== [2021-12-07 09:47:45,704 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 [2021-12-07 09:47:45,704 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 09:47:45,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2021-12-07 09:47:46,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:46,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:46,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1990937539, now seen corresponding path program 1 times [2021-12-07 09:47:46,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:46,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268955156] [2021-12-07 09:47:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:46,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:47:46,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:46,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268955156] [2021-12-07 09:47:46,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268955156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:46,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:46,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 09:47:46,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317537142] [2021-12-07 09:47:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:46,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 09:47:46,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 09:47:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 09:47:46,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,306 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:46,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:46,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-07 09:47:46,311 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1925597946, now seen corresponding path program 1 times [2021-12-07 09:47:46,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:46,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511305315] [2021-12-07 09:47:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:46,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:47:46,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:46,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511305315] [2021-12-07 09:47:46,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511305315] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:46,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:46,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:47:46,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380930793] [2021-12-07 09:47:46,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:46,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:47:46,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:46,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:47:46,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:47:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,353 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:46,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:46,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:46,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-07 09:47:46,502 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:46,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:46,502 INFO L85 PathProgramCache]: Analyzing trace with hash 704770798, now seen corresponding path program 1 times [2021-12-07 09:47:46,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:46,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106787129] [2021-12-07 09:47:46,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:46,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-07 09:47:46,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:46,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106787129] [2021-12-07 09:47:46,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106787129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:46,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:46,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:47:46,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953467274] [2021-12-07 09:47:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:46,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:47:46,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:46,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:47:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:47:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,553 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:46,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:46,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:46,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:46,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-07 09:47:46,619 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:46,619 INFO L85 PathProgramCache]: Analyzing trace with hash -752191823, now seen corresponding path program 1 times [2021-12-07 09:47:46,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:46,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471576891] [2021-12-07 09:47:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:46,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-07 09:47:46,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:46,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471576891] [2021-12-07 09:47:46,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471576891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:46,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:46,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:47:46,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475376543] [2021-12-07 09:47:46,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:46,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:47:46,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:46,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:47:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:47:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,678 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:46,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:46,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:46,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:46,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:46,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-07 09:47:46,901 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:46,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1896310935, now seen corresponding path program 1 times [2021-12-07 09:47:46,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:46,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011859194] [2021-12-07 09:47:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:46,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-07 09:47:46,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:46,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011859194] [2021-12-07 09:47:46,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011859194] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:46,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:46,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 09:47:46,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596064218] [2021-12-07 09:47:46,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:46,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 09:47:46,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:46,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 09:47:46,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 09:47:46,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,985 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:46,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:46,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:46,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:46,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:46,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:46,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:47,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:47,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:47,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:47,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-07 09:47:47,234 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:47,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2107043274, now seen corresponding path program 1 times [2021-12-07 09:47:47,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:47,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305229038] [2021-12-07 09:47:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:47,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-12-07 09:47:47,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:47,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305229038] [2021-12-07 09:47:47,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305229038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:47,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:47,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 09:47:47,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273243780] [2021-12-07 09:47:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:47,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 09:47:47,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 09:47:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 09:47:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:47,298 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:47,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:47,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:47,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:47,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:47,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:47,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:47,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:47,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-07 09:47:47,428 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:47,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:47,428 INFO L85 PathProgramCache]: Analyzing trace with hash 936734460, now seen corresponding path program 1 times [2021-12-07 09:47:47,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:47,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808154536] [2021-12-07 09:47:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:47,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-07 09:47:47,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:47,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808154536] [2021-12-07 09:47:47,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808154536] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:47,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893571625] [2021-12-07 09:47:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:47,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:47,507 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:47,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-07 09:47:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:47,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 09:47:47,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-07 09:47:48,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-07 09:47:48,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893571625] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:48,390 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:48,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-12-07 09:47:48,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211774394] [2021-12-07 09:47:48,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:48,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 09:47:48,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:48,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 09:47:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-07 09:47:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:48,392 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:48,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.625) internal successors, (245), 8 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:48,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:48,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:48,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:48,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-12-07 09:47:48,724 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:48,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1151829159, now seen corresponding path program 1 times [2021-12-07 09:47:48,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:48,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142057543] [2021-12-07 09:47:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:48,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 217 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 09:47:48,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:48,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142057543] [2021-12-07 09:47:48,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142057543] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:48,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875693053] [2021-12-07 09:47:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:48,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:48,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:48,857 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:48,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-12-07 09:47:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:49,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 09:47:49,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 217 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 09:47:49,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:49,715 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 217 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 09:47:49,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875693053] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:49,715 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:49,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-12-07 09:47:49,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861198110] [2021-12-07 09:47:49,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:49,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 09:47:49,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:49,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 09:47:49,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-07 09:47:49,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:49,717 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:49,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.25) internal successors, (282), 8 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:49,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:50,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:50,026 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:50,028 INFO L85 PathProgramCache]: Analyzing trace with hash 782670133, now seen corresponding path program 2 times [2021-12-07 09:47:50,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:50,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201477513] [2021-12-07 09:47:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:50,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 180 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 09:47:50,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:50,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201477513] [2021-12-07 09:47:50,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201477513] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:50,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359993891] [2021-12-07 09:47:50,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:47:50,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:50,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:50,194 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:50,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-12-07 09:47:50,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 09:47:50,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:47:50,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 09:47:50,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 180 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 09:47:50,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 180 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 09:47:51,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359993891] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:51,444 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:51,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-12-07 09:47:51,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508512489] [2021-12-07 09:47:51,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:51,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 09:47:51,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 09:47:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-07 09:47:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:51,446 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:51,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 33.0) internal successors, (462), 14 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:51,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:51,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:51,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:51,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-12-07 09:47:51,803 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:51,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1157324492, now seen corresponding path program 2 times [2021-12-07 09:47:51,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:51,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844345496] [2021-12-07 09:47:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:51,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 898 proven. 316 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-12-07 09:47:51,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:51,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844345496] [2021-12-07 09:47:51,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844345496] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:51,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924898079] [2021-12-07 09:47:52,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:47:52,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:52,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:52,002 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:52,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-12-07 09:47:52,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 09:47:52,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:47:52,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 09:47:52,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 898 proven. 316 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-12-07 09:47:52,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 898 proven. 316 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-12-07 09:47:53,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924898079] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:53,575 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:53,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-12-07 09:47:53,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776629955] [2021-12-07 09:47:53,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:53,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 09:47:53,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:53,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 09:47:53,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-07 09:47:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:53,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:53,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 35.57142857142857) internal successors, (498), 14 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:53,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:53,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:53,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-12-07 09:47:53,948 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:53,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1965803283, now seen corresponding path program 3 times [2021-12-07 09:47:53,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:53,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172575536] [2021-12-07 09:47:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:53,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 2017 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-07 09:47:54,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:54,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172575536] [2021-12-07 09:47:54,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172575536] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:54,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 09:47:54,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 09:47:54,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580616606] [2021-12-07 09:47:54,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:54,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 09:47:54,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:54,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 09:47:54,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-12-07 09:47:54,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:54,353 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:54,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 34.42857142857143) internal successors, (482), 14 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:54,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:54,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-07 09:47:54,633 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:54,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:54,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1728758207, now seen corresponding path program 4 times [2021-12-07 09:47:54,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:54,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258216425] [2021-12-07 09:47:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:54,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 1874 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:47:54,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:54,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258216425] [2021-12-07 09:47:54,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258216425] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:54,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208056335] [2021-12-07 09:47:54,974 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 09:47:54,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:54,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:54,980 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:54,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-12-07 09:47:55,376 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 09:47:55,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:47:55,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 09:47:55,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 1985 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-07 09:47:56,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:47:56,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208056335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:47:56,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:47:56,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 19 [2021-12-07 09:47:56,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332605553] [2021-12-07 09:47:56,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:47:56,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 09:47:56,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 09:47:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-12-07 09:47:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:56,141 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:56,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 33.642857142857146) internal successors, (471), 14 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:56,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:56,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:56,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:56,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:56,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:56,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-12-07 09:47:56,759 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:56,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:56,761 INFO L85 PathProgramCache]: Analyzing trace with hash -712620011, now seen corresponding path program 1 times [2021-12-07 09:47:56,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:56,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456585998] [2021-12-07 09:47:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:56,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:47:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1153 backedges. 0 proven. 294 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2021-12-07 09:47:57,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:47:57,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456585998] [2021-12-07 09:47:57,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456585998] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:47:57,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602215319] [2021-12-07 09:47:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:57,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:47:57,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:47:57,157 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:47:57,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-12-07 09:47:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:47:57,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-07 09:47:57,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:47:58,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:47:58,366 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 09:47:58,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 09:47:58,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:47:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1153 backedges. 31 proven. 167 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2021-12-07 09:47:58,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 09:47:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1153 backedges. 15 proven. 279 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2021-12-07 09:47:59,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602215319] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 09:47:59,171 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 09:47:59,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 27 [2021-12-07 09:47:59,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212142218] [2021-12-07 09:47:59,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 09:47:59,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-07 09:47:59,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:47:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-07 09:47:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2021-12-07 09:47:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:59,173 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:47:59,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.074074074074074) internal successors, (326), 27 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:47:59,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:59,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:59,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:59,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:59,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:59,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:47:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:47:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:47:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:47:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:47:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-07 09:47:59,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-12-07 09:47:59,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-12-07 09:47:59,926 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:47:59,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:47:59,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1551560731, now seen corresponding path program 2 times [2021-12-07 09:47:59,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:47:59,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562812567] [2021-12-07 09:47:59,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:47:59,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 5 proven. 628 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-12-07 09:48:00,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:00,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562812567] [2021-12-07 09:48:00,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562812567] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:48:00,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347426394] [2021-12-07 09:48:00,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 09:48:00,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:48:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:48:00,549 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:48:00,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-12-07 09:48:00,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 09:48:00,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 09:48:00,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-07 09:48:00,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 09:48:01,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 09:48:01,265 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:48:01,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 34 [2021-12-07 09:48:01,306 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:48:01,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 42 [2021-12-07 09:48:01,354 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:48:01,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 34 [2021-12-07 09:48:01,404 INFO L354 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2021-12-07 09:48:01,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 42 [2021-12-07 09:48:01,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-12-07 09:48:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-12-07 09:48:01,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 09:48:01,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347426394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 09:48:01,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 09:48:01,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [23] total 27 [2021-12-07 09:48:01,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189423067] [2021-12-07 09:48:01,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 09:48:01,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 09:48:01,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 09:48:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 09:48:01,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2021-12-07 09:48:01,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:01,513 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-12-07 09:48:01,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 09:48:01,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:01,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:48:01,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:48:01,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:48:01,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-12-07 09:48:01,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:48:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 09:48:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-07 09:48:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 09:48:02,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-12-07 09:48:02,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:48:02,250 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 09:48:02,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 09:48:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 216293919, now seen corresponding path program 5 times [2021-12-07 09:48:02,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 09:48:02,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124267183] [2021-12-07 09:48:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 09:48:02,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 09:48:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 09:48:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1549 backedges. 5 proven. 1544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 09:48:03,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 09:48:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124267183] [2021-12-07 09:48:03,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124267183] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 09:48:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409381042] [2021-12-07 09:48:03,317 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 09:48:03,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 09:48:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 [2021-12-07 09:48:03,318 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 09:48:03,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3c12f2-6225-4282-9dd2-e508089b61f4/bin/ugemcutter-YQQFZV6HUA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process