./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 06:57:52,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:57:52,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:57:52,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:57:52,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:57:52,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:57:52,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:57:52,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:57:52,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:57:52,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:57:52,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:57:52,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:57:52,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:57:52,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:57:52,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:57:52,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:57:52,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:57:52,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:57:52,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:57:52,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:57:52,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:57:52,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:57:52,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:57:52,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:57:52,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:57:52,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:57:52,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:57:52,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:57:52,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:57:52,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:57:52,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:57:52,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:57:52,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:57:52,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:57:52,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:57:52,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:57:52,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:57:52,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:57:52,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:57:52,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:57:52,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:57:52,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-12-13 06:57:52,239 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:57:52,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:57:52,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 06:57:52,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 06:57:52,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 06:57:52,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 06:57:52,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:57:52,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:57:52,242 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:57:52,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:57:52,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:57:52,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 06:57:52,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:57:52,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:57:52,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:57:52,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:57:52,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:57:52,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:57:52,244 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 06:57:52,244 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:57:52,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:57:52,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:57:52,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:57:52,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:57:52,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:57:52,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:57:52,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:57:52,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:57:52,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:57:52,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:57:52,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:57:52,246 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 06:57:52,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:57:52,246 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 06:57:52,246 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-12-13 06:57:52,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 06:57:52,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 06:57:52,247 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 06:57:52,247 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 06:57:52,247 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_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-12-13 06:57:52,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:57:52,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:57:52,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:57:52,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:57:52,457 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:57:52,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-12-13 06:57:55,026 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:57:55,168 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:57:55,169 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-12-13 06:57:55,175 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/data/fb29587df/ca5b436373c64376856fc8aa88da22f7/FLAG184e99b05 [2022-12-13 06:57:55,187 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/data/fb29587df/ca5b436373c64376856fc8aa88da22f7 [2022-12-13 06:57:55,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:57:55,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 06:57:55,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:57:55,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:57:55,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:57:55,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548fd242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55, skipping insertion in model container [2022-12-13 06:57:55,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:57:55,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:57:55,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:57:55,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:57:55,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:57:55,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:57:55,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:57:55,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:57:55,364 WARN L237 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_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-12-13 06:57:55,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:57:55,382 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:57:55,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:57:55,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:57:55,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:57:55,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:57:55,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:57:55,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:57:55,406 WARN L237 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_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-12-13 06:57:55,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:57:55,424 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:57:55,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55 WrapperNode [2022-12-13 06:57:55,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:57:55,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:57:55,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:57:55,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:57:55,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,467 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 284 [2022-12-13 06:57:55,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:57:55,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:57:55,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:57:55,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:57:55,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,498 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:57:55,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:57:55,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:57:55,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:57:55,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (1/1) ... [2022-12-13 06:57:55,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:57:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 06:57:55,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 06:57:55,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 06:57:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:57:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:57:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:57:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 06:57:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 06:57:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 06:57:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 06:57:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 06:57:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:57:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:57:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:57:55,568 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 06:57:55,669 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 06:57:55,672 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:57:56,117 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 06:57:56,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:57:56,320 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 06:57:56,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:57:56 BoogieIcfgContainer [2022-12-13 06:57:56,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:57:56,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:57:56,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:57:56,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:57:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:57:55" (1/3) ... [2022-12-13 06:57:56,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b44d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:57:56, skipping insertion in model container [2022-12-13 06:57:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:57:55" (2/3) ... [2022-12-13 06:57:56,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b44d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:57:56, skipping insertion in model container [2022-12-13 06:57:56,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:57:56" (3/3) ... [2022-12-13 06:57:56,330 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-12-13 06:57:56,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 06:57:56,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:57:56,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-12-13 06:57:56,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:57:56,459 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 06:57:56,509 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:57:56,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 06:57:56,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 06:57:56,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 06:57:56,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 06:57:56,551 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 06:57:56,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2022-12-13 06:57:56,568 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11260d88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:57:56,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 06:57:57,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 06:57:57,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:57:57,035 INFO L85 PathProgramCache]: Analyzing trace with hash -982539007, now seen corresponding path program 1 times [2022-12-13 06:57:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:57:57,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414179694] [2022-12-13 06:57:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:57:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:57:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:57:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:57:57,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:57:57,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414179694] [2022-12-13 06:57:57,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414179694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:57:57,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:57:57,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:57:57,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391129526] [2022-12-13 06:57:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:57:57,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 06:57:57,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:57:57,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 06:57:57,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 06:57:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 06:57:57,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:57:57,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:57:57,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 06:57:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:57:57,401 INFO L85 PathProgramCache]: Analyzing trace with hash 158142172, now seen corresponding path program 1 times [2022-12-13 06:57:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:57:57,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35835206] [2022-12-13 06:57:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:57:57,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:57:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:57:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:57:57,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:57:57,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35835206] [2022-12-13 06:57:57,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35835206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:57:57,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:57:57,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 06:57:57,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556182814] [2022-12-13 06:57:57,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:57:57,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:57:57,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:57:57,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:57:57,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:57:57,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,703 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 06:57:57,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:57:57,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:57,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:57:57,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 06:57:57,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 06:57:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:57:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash -339850818, now seen corresponding path program 1 times [2022-12-13 06:57:57,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:57:57,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197510036] [2022-12-13 06:57:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:57:57,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:57:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:57:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:57:58,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:57:58,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197510036] [2022-12-13 06:57:58,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197510036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:57:58,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:57:58,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 06:57:58,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724779799] [2022-12-13 06:57:58,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:57:58,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 06:57:58,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:57:58,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 06:57:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 06:57:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:58,092 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 06:57:58,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:57:58,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:58,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:57:58,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:57:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 06:57:58,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 06:57:58,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 06:57:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:57:58,269 INFO L85 PathProgramCache]: Analyzing trace with hash -544438104, now seen corresponding path program 1 times [2022-12-13 06:57:58,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:57:58,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91383297] [2022-12-13 06:57:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:57:58,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:57:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:57:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 06:57:58,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:57:58,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91383297] [2022-12-13 06:57:58,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91383297] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 06:57:58,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177257561] [2022-12-13 06:57:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:57:58,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 06:57:58,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 06:57:58,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 06:57:58,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 06:57:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:57:58,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 06:57:58,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 06:57:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 06:57:59,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 06:57:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 06:57:59,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177257561] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 06:57:59,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 06:57:59,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-13 06:57:59,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972939573] [2022-12-13 06:57:59,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 06:57:59,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 06:57:59,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:57:59,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 06:57:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-12-13 06:57:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:59,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 06:57:59,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.0) internal successors, (304), 19 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:57:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:57:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 06:57:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:57:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:57:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 06:57:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 06:57:59,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 06:57:59,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 06:57:59,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 06:57:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:57:59,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1844339006, now seen corresponding path program 2 times [2022-12-13 06:57:59,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:57:59,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327996470] [2022-12-13 06:57:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:57:59,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:57:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:58:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 06:58:02,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:58:02,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327996470] [2022-12-13 06:58:02,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327996470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 06:58:02,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186055771] [2022-12-13 06:58:02,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 06:58:02,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 06:58:02,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 06:58:02,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 06:58:02,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 06:58:02,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 06:58:02,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 06:58:02,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 06:58:02,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 06:58:03,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 06:58:03,400 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-12-13 06:58:03,810 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 06:58:03,810 INFO L350 Elim1Store]: Elim1 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 [2022-12-13 06:58:03,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 06:58:04,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 06:58:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 06:58:04,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 06:58:04,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 06:58:04,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 06:58:04,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 06:58:04,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 06:58:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 06:58:04,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 06:58:04,869 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_170 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_170) c_~B~0.base) (+ (* |c_thread2Thread1of1ForFork2_~i~1#1| 4) c_~B~0.offset)) 9223372039002259456))) is different from false [2022-12-13 06:58:04,886 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_170 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_170) c_~B~0.base) (+ 4 c_~B~0.offset)) 9223372039002259456))) is different from false [2022-12-13 06:58:06,047 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 06:58:06,047 INFO L350 Elim1Store]: Elim1 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 35 treesize of output 36 [2022-12-13 06:58:06,069 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 06:58:06,069 INFO L350 Elim1Store]: Elim1 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 9794 treesize of output 9604 [2022-12-13 06:58:06,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9590 treesize of output 8566 [2022-12-13 06:58:06,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8566 treesize of output 8054 [2022-12-13 06:58:06,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8054 treesize of output 7926 [2022-12-13 06:58:06,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7926 treesize of output 7670 [2022-12-13 06:58:13,850 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 06:58:13,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 62 [2022-12-13 06:58:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 06:58:14,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186055771] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 06:58:14,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 06:58:14,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 21, 21] total 72 [2022-12-13 06:58:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740375339] [2022-12-13 06:58:14,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 06:58:14,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-12-13 06:58:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:58:14,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-12-13 06:58:14,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=4614, Unknown=35, NotChecked=278, Total=5256 [2022-12-13 06:58:14,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:58:14,346 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 06:58:14,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 9.583333333333334) internal successors, (690), 73 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:58:14,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:58:14,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:58:14,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 06:58:14,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 06:58:14,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:58:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 06:58:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:58:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 06:58:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 06:58:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 06:58:17,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 06:58:17,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 06:58:17,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 06:58:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:58:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1802360616, now seen corresponding path program 3 times [2022-12-13 06:58:17,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:58:17,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820351329] [2022-12-13 06:58:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:58:17,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:58:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:58:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 06:58:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:58:21,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820351329] [2022-12-13 06:58:21,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820351329] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 06:58:21,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066568649] [2022-12-13 06:58:21,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 06:58:21,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 06:58:21,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 06:58:21,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 06:58:21,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a54f0c-0b2d-4d25-9fc5-51dbc5d0eb5f/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 06:58:21,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 06:58:21,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 06:58:21,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-13 06:58:21,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 06:58:21,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 06:58:22,154 INFO L350 Elim1Store]: Elim1 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 [2022-12-13 06:58:22,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2022-12-13 06:58:23,482 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 06:58:23,482 INFO L350 Elim1Store]: Elim1 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 [2022-12-13 06:58:23,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 06:58:24,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 06:58:24,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 06:58:25,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 06:58:25,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 06:58:25,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 06:58:25,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 06:58:25,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 06:58:26,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 06:58:26,132 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 06:58:26,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 06:58:26,219 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_253 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_253) c_~B~0.base) (+ (* |c_thread2Thread1of1ForFork2_~i~1#1| 4) c_~B~0.offset)) 9223372039002259456))) is different from false [2022-12-13 06:58:26,229 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_253 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_253) c_~B~0.base) (+ 4 c_~B~0.offset)) 9223372039002259456))) is different from false [2022-12-13 06:58:26,344 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_252 (Array Int Int)) (v_ArrVal_251 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_251) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_252) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_253) c_~B~0.base) (+ 4 c_~B~0.offset)) 9223372039002259456))) is different from false [2022-12-13 06:58:29,507 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 06:58:29,508 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 43 treesize of output 49 [2022-12-13 06:58:29,529 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 06:58:29,530 INFO L350 Elim1Store]: Elim1 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 19586 treesize of output 19204 [2022-12-13 06:58:29,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19190 treesize of output 17142 [2022-12-13 06:58:29,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17142 treesize of output 16886 [2022-12-13 06:58:29,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16886 treesize of output 16374 [2022-12-13 06:58:29,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16374 treesize of output 15350