./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b09c85b7 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_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U --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 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf --- 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-b09c85b [2022-11-08 07:44:45,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-08 07:44:45,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-08 07:44:45,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-08 07:44:45,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-08 07:44:45,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-08 07:44:45,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-08 07:44:45,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-08 07:44:45,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-08 07:44:45,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-08 07:44:45,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-08 07:44:45,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-08 07:44:45,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-08 07:44:45,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-08 07:44:45,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-08 07:44:45,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-08 07:44:45,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-08 07:44:45,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-08 07:44:45,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-08 07:44:45,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-08 07:44:45,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-08 07:44:45,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-08 07:44:45,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-08 07:44:45,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-08 07:44:45,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-08 07:44:45,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-08 07:44:45,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-08 07:44:45,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-08 07:44:45,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-08 07:44:45,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-08 07:44:45,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-08 07:44:45,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-08 07:44:45,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-08 07:44:45,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-08 07:44:45,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-08 07:44:45,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-08 07:44:45,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-08 07:44:45,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-08 07:44:45,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-08 07:44:45,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-08 07:44:45,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-08 07:44:45,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-08 07:44:45,174 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-08 07:44:45,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-08 07:44:45,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-08 07:44:45,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-08 07:44:45,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-08 07:44:45,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-08 07:44:45,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-08 07:44:45,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-08 07:44:45,179 INFO L138 SettingsManager]: * Use SBE=true [2022-11-08 07:44:45,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-08 07:44:45,180 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-08 07:44:45,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-08 07:44:45,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-08 07:44:45,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-08 07:44:45,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-08 07:44:45,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-08 07:44:45,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-08 07:44:45,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-08 07:44:45,181 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-08 07:44:45,182 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-08 07:44:45,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-08 07:44:45,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-08 07:44:45,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-08 07:44:45,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-08 07:44:45,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-08 07:44:45,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-08 07:44:45,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-08 07:44:45,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:44:45,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-08 07:44:45,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-08 07:44:45,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-08 07:44:45,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-08 07:44:45,185 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-08 07:44:45,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-08 07:44:45,186 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-08 07:44:45,186 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-08 07:44:45,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-08 07:44:45,186 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-08 07:44:45,187 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-08 07:44:45,187 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_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf [2022-11-08 07:44:45,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-08 07:44:45,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-08 07:44:45,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-08 07:44:45,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-08 07:44:45,606 INFO L275 PluginConnector]: CDTParser initialized [2022-11-08 07:44:45,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2022-11-08 07:44:45,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/data/5c311de0e/5e76c913e10d463b9edd488c6ac78a8c/FLAG982d46a57 [2022-11-08 07:44:46,333 INFO L306 CDTParser]: Found 1 translation units. [2022-11-08 07:44:46,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2022-11-08 07:44:46,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/data/5c311de0e/5e76c913e10d463b9edd488c6ac78a8c/FLAG982d46a57 [2022-11-08 07:44:46,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/data/5c311de0e/5e76c913e10d463b9edd488c6ac78a8c [2022-11-08 07:44:46,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-08 07:44:46,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-08 07:44:46,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-08 07:44:46,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-08 07:44:46,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-08 07:44:46,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:44:46" (1/1) ... [2022-11-08 07:44:46,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee7c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:46, skipping insertion in model container [2022-11-08 07:44:46,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:44:46" (1/1) ... [2022-11-08 07:44:46,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-08 07:44:46,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-08 07:44:46,918 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_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2022-11-08 07:44:47,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:44:47,175 INFO L203 MainTranslator]: Completed pre-run [2022-11-08 07:44:47,189 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_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2022-11-08 07:44:47,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:44:47,337 INFO L208 MainTranslator]: Completed translation [2022-11-08 07:44:47,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47 WrapperNode [2022-11-08 07:44:47,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-08 07:44:47,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-08 07:44:47,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-08 07:44:47,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-08 07:44:47,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,438 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 294 [2022-11-08 07:44:47,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-08 07:44:47,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-08 07:44:47,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-08 07:44:47,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-08 07:44:47,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-08 07:44:47,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-08 07:44:47,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-08 07:44:47,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-08 07:44:47,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (1/1) ... [2022-11-08 07:44:47,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:44:47,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:44:47,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-08 07:44:47,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-08 07:44:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-08 07:44:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-08 07:44:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-08 07:44:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-08 07:44:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-08 07:44:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-08 07:44:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-08 07:44:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-08 07:44:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-08 07:44:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-08 07:44:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-08 07:44:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-08 07:44:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-08 07:44:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-08 07:44:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-08 07:44:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-08 07:44:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-08 07:44:47,617 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-08 07:44:47,903 INFO L235 CfgBuilder]: Building ICFG [2022-11-08 07:44:47,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-08 07:44:48,796 INFO L276 CfgBuilder]: Performing block encoding [2022-11-08 07:44:49,407 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-08 07:44:49,407 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-08 07:44:49,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:44:49 BoogieIcfgContainer [2022-11-08 07:44:49,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-08 07:44:49,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-08 07:44:49,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-08 07:44:49,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-08 07:44:49,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:44:46" (1/3) ... [2022-11-08 07:44:49,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc69202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:44:49, skipping insertion in model container [2022-11-08 07:44:49,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:44:47" (2/3) ... [2022-11-08 07:44:49,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc69202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:44:49, skipping insertion in model container [2022-11-08 07:44:49,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:44:49" (3/3) ... [2022-11-08 07:44:49,426 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2022-11-08 07:44:49,436 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-08 07:44:49,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-08 07:44:49,448 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-08 07:44:49,448 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-08 07:44:49,560 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-08 07:44:49,637 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:44:49,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:44:49,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:44:49,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:44:49,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-08 07:44:49,696 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:44:49,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork2 ======== [2022-11-08 07:44:49,725 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;@4553548a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:44:49,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:44:50,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:44:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:44:50,352 INFO L85 PathProgramCache]: Analyzing trace with hash 80371610, now seen corresponding path program 1 times [2022-11-08 07:44:50,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:44:50,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060253978] [2022-11-08 07:44:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:44:50,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:44:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:44:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:50,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:44:50,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060253978] [2022-11-08 07:44:50,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060253978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:44:50,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:44:50,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:44:50,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137622212] [2022-11-08 07:44:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:44:50,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:44:50,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:44:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:44:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:44:51,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:51,017 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:44:51,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:44:51,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:51,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-08 07:44:51,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:44:51,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:44:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash 243283997, now seen corresponding path program 1 times [2022-11-08 07:44:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:44:51,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185549117] [2022-11-08 07:44:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:44:51,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:44:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:44:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:51,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:44:51,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185549117] [2022-11-08 07:44:51,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185549117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:44:51,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:44:51,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:44:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454932027] [2022-11-08 07:44:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:44:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:44:51,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:44:51,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:44:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:44:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:51,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:44:51,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:44:51,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:51,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:51,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-08 07:44:51,362 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:44:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:44:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash 243283998, now seen corresponding path program 1 times [2022-11-08 07:44:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:44:51,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028937321] [2022-11-08 07:44:51,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:44:51,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:44:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:44:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:51,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:44:51,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028937321] [2022-11-08 07:44:51,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028937321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:44:51,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:44:51,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:44:51,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383074825] [2022-11-08 07:44:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:44:51,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:44:51,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:44:51,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:44:51,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:44:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:51,608 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:44:51,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:44:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:51,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-08 07:44:51,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:44:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:44:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1270787222, now seen corresponding path program 1 times [2022-11-08 07:44:51,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:44:51,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907868019] [2022-11-08 07:44:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:44:51,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:44:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:44:52,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:44:52,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:44:52,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907868019] [2022-11-08 07:44:52,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907868019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:44:52,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:44:52,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:44:52,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544295230] [2022-11-08 07:44:52,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:44:52,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:44:52,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:44:52,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:44:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:44:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:44:52,277 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:44:52,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:44:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:44:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:44:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:45:09,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-08 07:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-08 07:45:09,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-08 07:45:09,372 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-08 07:45:09,374 INFO L307 ceAbstractionStarter]: Result for error location P2Thread1of1ForFork2 was SAFE,SAFE (1/5) [2022-11-08 07:45:09,379 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:45:09,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:45:09,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:45:09,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:45:09,416 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:45:09,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-08 07:45:09,417 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;@4553548a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:45:09,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-08 07:45:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-11-08 07:45:10,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-08 07:45:10,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-08 07:45:10,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-08 07:45:10,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-08 07:45:10,987 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-11-08 07:45:10,988 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (2/5) [2022-11-08 07:45:10,995 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:45:10,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:45:10,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:45:10,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:45:11,000 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:45:11,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork1 ======== [2022-11-08 07:45:11,001 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;@4553548a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:45:11,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:45:11,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-11-08 07:45:11,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:11,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1103651067, now seen corresponding path program 1 times [2022-11-08 07:45:11,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:11,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581285765] [2022-11-08 07:45:11,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:11,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:11,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:11,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581285765] [2022-11-08 07:45:11,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581285765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:11,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:11,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-08 07:45:11,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662172388] [2022-11-08 07:45:11,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:11,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:45:11,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:45:11,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:45:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:11,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:11,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:11,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:11,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-08 07:45:11,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:11,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:11,681 INFO L85 PathProgramCache]: Analyzing trace with hash -502279153, now seen corresponding path program 1 times [2022-11-08 07:45:11,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:11,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120087144] [2022-11-08 07:45:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:11,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:11,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:11,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120087144] [2022-11-08 07:45:11,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120087144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:11,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:11,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:45:11,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817645498] [2022-11-08 07:45:11,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:11,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:45:11,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:11,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:45:11,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:45:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:11,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:11,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:11,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:11,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:12,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-08 07:45:12,106 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1112813838, now seen corresponding path program 1 times [2022-11-08 07:45:12,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:12,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973223652] [2022-11-08 07:45:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:12,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:12,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:12,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973223652] [2022-11-08 07:45:12,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973223652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:12,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:12,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:45:12,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334720644] [2022-11-08 07:45:12,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:12,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:45:12,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:12,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:45:12,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:45:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:12,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:12,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:12,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:12,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:12,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:16,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:16,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:16,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:45:16,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-08 07:45:16,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:16,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1332222542, now seen corresponding path program 1 times [2022-11-08 07:45:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:16,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465311730] [2022-11-08 07:45:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:16,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:16,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:16,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465311730] [2022-11-08 07:45:16,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465311730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:16,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:16,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:45:16,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051666647] [2022-11-08 07:45:16,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:16,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:45:16,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:16,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:45:16,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:45:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:16,268 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:16,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 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) [2022-11-08 07:45:16,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:16,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:16,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:45:16,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:45:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:25,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-08 07:45:25,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-08 07:45:25,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-08 07:45:25,595 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-08 07:45:25,595 INFO L307 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork1 was SAFE,SAFE (3/5) [2022-11-08 07:45:25,598 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:45:25,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:45:25,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:45:25,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:45:25,634 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:45:25,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Thread1of1ForFork3 ======== [2022-11-08 07:45:25,635 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;@4553548a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:45:25,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:45:25,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d24db1-a29e-48d7-b0f0-89b4294e0ae9/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-11-08 07:45:26,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 92050899, now seen corresponding path program 1 times [2022-11-08 07:45:26,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:26,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313657173] [2022-11-08 07:45:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:26,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:26,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313657173] [2022-11-08 07:45:26,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313657173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:26,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:26,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:45:26,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480230700] [2022-11-08 07:45:26,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:26,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:45:26,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:26,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:45:26,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:45:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,234 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:26,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:26,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-08 07:45:26,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:26,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:26,326 INFO L85 PathProgramCache]: Analyzing trace with hash 108596869, now seen corresponding path program 1 times [2022-11-08 07:45:26,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:26,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361771128] [2022-11-08 07:45:26,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:26,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:26,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:26,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361771128] [2022-11-08 07:45:26,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361771128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:26,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:26,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:45:26,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144130693] [2022-11-08 07:45:26,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:26,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:45:26,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:26,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:45:26,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:45:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,465 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:26,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:26,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-08 07:45:26,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash 564652262, now seen corresponding path program 1 times [2022-11-08 07:45:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:26,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035667843] [2022-11-08 07:45:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035667843] [2022-11-08 07:45:26,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035667843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:26,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:26,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:45:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698149233] [2022-11-08 07:45:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:26,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:45:26,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:45:26,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:45:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,653 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:26,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:26,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-08 07:45:26,716 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:26,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:26,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1232961128, now seen corresponding path program 1 times [2022-11-08 07:45:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:26,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413322305] [2022-11-08 07:45:26,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:26,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:26,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:26,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:26,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413322305] [2022-11-08 07:45:26,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413322305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:26,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:26,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:45:26,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229353782] [2022-11-08 07:45:26,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:26,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-08 07:45:26,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:26,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-08 07:45:26,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-08 07:45:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,874 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:26,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:26,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:26,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-08 07:45:26,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-08 07:45:26,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:45:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:45:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 729089189, now seen corresponding path program 1 times [2022-11-08 07:45:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:45:26,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645814981] [2022-11-08 07:45:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:45:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:45:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:45:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:45:27,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:45:27,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645814981] [2022-11-08 07:45:27,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645814981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:45:27,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:45:27,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:45:27,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096596487] [2022-11-08 07:45:27,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:45:27,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:45:27,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:45:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:45:27,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:45:27,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:45:27,165 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:45:27,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:45:27,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:45:27,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:27,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:45:27,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-08 07:45:27,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.