./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 854e371c98b43d805c328b457758892c4a501d7b326c2672c089850792494a4b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 07:12:14,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 07:12:14,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 07:12:14,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 07:12:14,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 07:12:14,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 07:12:14,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 07:12:14,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 07:12:14,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 07:12:14,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 07:12:14,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 07:12:14,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 07:12:14,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 07:12:14,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 07:12:14,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 07:12:14,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 07:12:14,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 07:12:14,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 07:12:14,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 07:12:14,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 07:12:14,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 07:12:14,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 07:12:14,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 07:12:14,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 07:12:14,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 07:12:14,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 07:12:14,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 07:12:14,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 07:12:14,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 07:12:14,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 07:12:14,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 07:12:14,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 07:12:14,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 07:12:14,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 07:12:14,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 07:12:14,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 07:12:14,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 07:12:14,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 07:12:14,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 07:12:14,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 07:12:14,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 07:12:14,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-12-13 07:12:14,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 07:12:14,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 07:12:14,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 07:12:14,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 07:12:14,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 07:12:14,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 07:12:14,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 07:12:14,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 07:12:14,661 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 07:12:14,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 07:12:14,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 07:12:14,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 07:12:14,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:12:14,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 07:12:14,664 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 07:12:14,665 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-12-13 07:12:14,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 07:12:14,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 07:12:14,665 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 07:12:14,665 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 07:12:14,665 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_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 854e371c98b43d805c328b457758892c4a501d7b326c2672c089850792494a4b [2022-12-13 07:12:14,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 07:12:14,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 07:12:14,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 07:12:14,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 07:12:14,851 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 07:12:14,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/fib_unsafe-6.i [2022-12-13 07:12:17,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 07:12:17,580 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 07:12:17,581 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/sv-benchmarks/c/pthread/fib_unsafe-6.i [2022-12-13 07:12:17,592 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/data/75e91ab00/a94fc6c4af5f48a2b130a2fe176d78bb/FLAG2f27d7912 [2022-12-13 07:12:17,947 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/data/75e91ab00/a94fc6c4af5f48a2b130a2fe176d78bb [2022-12-13 07:12:17,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 07:12:17,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 07:12:17,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 07:12:17,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 07:12:17,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 07:12:17,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:12:17" (1/1) ... [2022-12-13 07:12:17,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66945628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:17, skipping insertion in model container [2022-12-13 07:12:17,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:12:17" (1/1) ... [2022-12-13 07:12:17,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 07:12:17,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 07:12:18,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/sv-benchmarks/c/pthread/fib_unsafe-6.i[30243,30256] [2022-12-13 07:12:18,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,177 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,177 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,177 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:12:18,190 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 07:12:18,216 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/sv-benchmarks/c/pthread/fib_unsafe-6.i[30243,30256] [2022-12-13 07:12:18,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:12:18,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:12:18,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:12:18,245 INFO L208 MainTranslator]: Completed translation [2022-12-13 07:12:18,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18 WrapperNode [2022-12-13 07:12:18,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 07:12:18,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 07:12:18,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 07:12:18,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 07:12:18,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,275 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2022-12-13 07:12:18,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 07:12:18,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 07:12:18,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 07:12:18,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 07:12:18,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 07:12:18,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 07:12:18,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 07:12:18,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 07:12:18,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (1/1) ... [2022-12-13 07:12:18,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:12:18,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:18,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 07:12:18,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 07:12:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 07:12:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 07:12:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 07:12:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 07:12:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 07:12:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 07:12:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 07:12:18,359 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 07:12:18,456 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 07:12:18,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 07:12:18,647 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 07:12:18,664 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 07:12:18,665 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 07:12:18,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:18 BoogieIcfgContainer [2022-12-13 07:12:18,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 07:12:18,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 07:12:18,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 07:12:18,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 07:12:18,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:12:17" (1/3) ... [2022-12-13 07:12:18,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eb45b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:12:18, skipping insertion in model container [2022-12-13 07:12:18,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:18" (2/3) ... [2022-12-13 07:12:18,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eb45b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:12:18, skipping insertion in model container [2022-12-13 07:12:18,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:18" (3/3) ... [2022-12-13 07:12:18,673 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-6.i [2022-12-13 07:12:18,680 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 07:12:18,688 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 07:12:18,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 07:12:18,688 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 07:12:18,733 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 07:12:18,767 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:12:18,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:12:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:18,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:12:18,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 07:12:18,803 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:12:18,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2022-12-13 07:12:18,818 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;@3d97768b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:12:18,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:12:18,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:19,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:19,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1037127840, now seen corresponding path program 1 times [2022-12-13 07:12:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:19,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081481320] [2022-12-13 07:12:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:19,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:19,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:19,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081481320] [2022-12-13 07:12:19,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081481320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:19,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:19,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:12:19,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200939353] [2022-12-13 07:12:19,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:19,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:19,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:19,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:19,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,286 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:19,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 07:12:19,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:19,340 INFO L85 PathProgramCache]: Analyzing trace with hash -247430332, now seen corresponding path program 1 times [2022-12-13 07:12:19,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:19,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424783807] [2022-12-13 07:12:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:19,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:19,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424783807] [2022-12-13 07:12:19,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424783807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:19,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:19,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:12:19,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025944665] [2022-12-13 07:12:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:19,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:19,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:19,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:19,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:19,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:19,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 07:12:19,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:19,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2105613914, now seen corresponding path program 1 times [2022-12-13 07:12:19,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:19,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65420371] [2022-12-13 07:12:19,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:19,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:19,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:19,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65420371] [2022-12-13 07:12:19,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65420371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:19,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:19,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:12:19,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256232760] [2022-12-13 07:12:19,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:19,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:19,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:19,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:19,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,685 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:19,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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) [2022-12-13 07:12:19,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:19,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 07:12:19,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash 758628078, now seen corresponding path program 1 times [2022-12-13 07:12:19,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:19,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424007670] [2022-12-13 07:12:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:19,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:19,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:19,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424007670] [2022-12-13 07:12:19,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424007670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:19,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:19,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:12:19,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127627101] [2022-12-13 07:12:19,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:19,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:19,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:19,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,839 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:19,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:19,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:19,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:19,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 07:12:19,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:19,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash 95662506, now seen corresponding path program 1 times [2022-12-13 07:12:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:19,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845725080] [2022-12-13 07:12:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:20,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:20,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845725080] [2022-12-13 07:12:20,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845725080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:20,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:20,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 07:12:20,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545629400] [2022-12-13 07:12:20,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:20,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 07:12:20,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:20,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 07:12:20,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 07:12:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,017 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:20,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:20,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 07:12:20,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:20,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash -409896118, now seen corresponding path program 1 times [2022-12-13 07:12:20,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:20,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928396403] [2022-12-13 07:12:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:20,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:20,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:20,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928396403] [2022-12-13 07:12:20,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928396403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:20,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:20,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 07:12:20,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491487566] [2022-12-13 07:12:20,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:20,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 07:12:20,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:20,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 07:12:20,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 07:12:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,154 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:20,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:20,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 07:12:20,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash -940255258, now seen corresponding path program 1 times [2022-12-13 07:12:20,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:20,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567075551] [2022-12-13 07:12:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:20,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:20,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:20,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567075551] [2022-12-13 07:12:20,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567075551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:20,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:20,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:12:20,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388426874] [2022-12-13 07:12:20,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:20,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:20,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:20,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:20,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,273 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:20,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:20,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 07:12:20,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:20,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1956668835, now seen corresponding path program 1 times [2022-12-13 07:12:20,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:20,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991041401] [2022-12-13 07:12:20,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:20,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:20,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:20,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991041401] [2022-12-13 07:12:20,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991041401] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:20,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803988260] [2022-12-13 07:12:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:20,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:20,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:20,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:20,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 07:12:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:20,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 07:12:20,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:20,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:20,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803988260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:20,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:20,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-12-13 07:12:20,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864026206] [2022-12-13 07:12:20,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:20,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:12:20,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:20,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:12:20,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 07:12:20,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,740 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:20,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 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) [2022-12-13 07:12:20,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:20,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 07:12:20,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 07:12:20,993 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:20,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1956668836, now seen corresponding path program 1 times [2022-12-13 07:12:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:20,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438876960] [2022-12-13 07:12:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:20,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:21,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:21,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438876960] [2022-12-13 07:12:21,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438876960] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144571457] [2022-12-13 07:12:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:21,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:21,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:21,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:21,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 07:12:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:21,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 07:12:21,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:21,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:12:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:21,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144571457] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:12:21,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:12:21,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-12-13 07:12:21,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757099220] [2022-12-13 07:12:21,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:12:21,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 07:12:21,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 07:12:21,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-12-13 07:12:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:21,443 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:21,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.23076923076923) internal successors, (172), 14 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:21,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:21,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:21,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:21,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:12:21,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 07:12:21,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:21,738 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:21,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:21,739 INFO L85 PathProgramCache]: Analyzing trace with hash -836913977, now seen corresponding path program 1 times [2022-12-13 07:12:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:21,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721557581] [2022-12-13 07:12:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:21,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:21,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:21,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721557581] [2022-12-13 07:12:21,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721557581] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:21,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610650747] [2022-12-13 07:12:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:21,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:21,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:21,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:21,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 07:12:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:21,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 07:12:21,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:21,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:21,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:21,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610650747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:21,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:21,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 07:12:21,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848868606] [2022-12-13 07:12:21,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:21,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:12:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:21,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:12:21,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 07:12:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:21,964 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:21,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:21,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:12:21,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:12:22,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:22,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 07:12:22,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 07:12:22,248 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:22,248 INFO L85 PathProgramCache]: Analyzing trace with hash -174529185, now seen corresponding path program 1 times [2022-12-13 07:12:22,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:22,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227646273] [2022-12-13 07:12:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:22,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 07:12:22,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:22,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227646273] [2022-12-13 07:12:22,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227646273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:22,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:22,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:12:22,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581634003] [2022-12-13 07:12:22,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:22,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:22,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:22,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:22,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:22,298 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:22,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:22,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:22,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:12:22,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:22,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 07:12:22,423 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash -371551955, now seen corresponding path program 1 times [2022-12-13 07:12:22,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:22,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199101756] [2022-12-13 07:12:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:22,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:22,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199101756] [2022-12-13 07:12:22,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199101756] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:22,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747037060] [2022-12-13 07:12:22,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:22,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:22,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:22,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:22,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 07:12:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:22,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 07:12:22,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:12:22,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:22,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747037060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:22,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:22,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2022-12-13 07:12:22,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947061137] [2022-12-13 07:12:22,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:22,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 07:12:22,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:22,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 07:12:22,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 07:12:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:22,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:22,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 07:12:22,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:22,956 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:22,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:22,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1911958086, now seen corresponding path program 1 times [2022-12-13 07:12:22,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:22,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125604903] [2022-12-13 07:12:22,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:22,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 07:12:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:22,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125604903] [2022-12-13 07:12:22,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125604903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:22,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:22,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:12:22,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920393356] [2022-12-13 07:12:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:22,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:22,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:22,997 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:22,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:22,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 07:12:23,055 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:23,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1077288552, now seen corresponding path program 1 times [2022-12-13 07:12:23,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:23,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968467056] [2022-12-13 07:12:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:23,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:23,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:23,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968467056] [2022-12-13 07:12:23,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968467056] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:23,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854716524] [2022-12-13 07:12:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:23,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:23,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:23,220 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:23,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 07:12:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:23,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 07:12:23,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:12:23,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:23,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854716524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:23,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:23,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-12-13 07:12:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839131605] [2022-12-13 07:12:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:23,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 07:12:23,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 07:12:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-13 07:12:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:23,516 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:23,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:23,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 07:12:23,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 07:12:23,813 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:23,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:23,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1962785787, now seen corresponding path program 1 times [2022-12-13 07:12:23,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:23,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827100273] [2022-12-13 07:12:23,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:23,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:23,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:23,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827100273] [2022-12-13 07:12:23,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827100273] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:23,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756051815] [2022-12-13 07:12:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:23,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:23,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:23,978 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 07:12:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:24,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 07:12:24,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:12:24,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:12:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:12:24,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756051815] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:12:24,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:12:24,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-12-13 07:12:24,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473559887] [2022-12-13 07:12:24,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:12:24,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 07:12:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:24,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 07:12:24,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-12-13 07:12:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:24,388 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:24,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:24,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:24,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:24,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 07:12:24,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 07:12:24,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 07:12:24,948 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash -978455254, now seen corresponding path program 1 times [2022-12-13 07:12:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:24,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105870930] [2022-12-13 07:12:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:24,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:25,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:25,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105870930] [2022-12-13 07:12:25,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105870930] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:25,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998716070] [2022-12-13 07:12:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:25,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:25,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:25,176 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:25,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 07:12:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:25,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 07:12:25,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:12:25,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:25,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998716070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:25,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:25,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-12-13 07:12:25,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237307291] [2022-12-13 07:12:25,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:25,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 07:12:25,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 07:12:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-13 07:12:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:25,297 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:25,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 07:12:25,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 07:12:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 07:12:25,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 07:12:25,560 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -76794901, now seen corresponding path program 1 times [2022-12-13 07:12:25,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:25,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481485077] [2022-12-13 07:12:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 07:12:25,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:25,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481485077] [2022-12-13 07:12:25,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481485077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:25,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:12:25,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:12:25,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034596955] [2022-12-13 07:12:25,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:25,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:12:25,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:25,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:12:25,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:12:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:25,598 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:25,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:25,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:25,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 07:12:25,658 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:25,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:25,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1727451068, now seen corresponding path program 2 times [2022-12-13 07:12:25,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:25,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125566577] [2022-12-13 07:12:25,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:25,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:25,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:25,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125566577] [2022-12-13 07:12:25,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125566577] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:25,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496364644] [2022-12-13 07:12:25,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 07:12:25,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:25,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:25,823 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:25,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 07:12:25,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 07:12:25,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 07:12:25,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 07:12:25,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:26,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:12:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:26,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496364644] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:12:26,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:12:26,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-12-13 07:12:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064290008] [2022-12-13 07:12:26,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:12:26,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 07:12:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 07:12:26,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2022-12-13 07:12:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:26,424 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:26,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 12.88) internal successors, (322), 26 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:26,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:26,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 07:12:26,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 07:12:27,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 07:12:27,074 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1040807308, now seen corresponding path program 2 times [2022-12-13 07:12:27,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:27,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157767725] [2022-12-13 07:12:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:27,422 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 12 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:27,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:27,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157767725] [2022-12-13 07:12:27,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157767725] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:27,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678144217] [2022-12-13 07:12:27,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 07:12:27,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:27,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:27,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:27,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 07:12:27,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 07:12:27,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 07:12:27,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 07:12:27,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 100 proven. 126 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 07:12:27,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:12:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 100 proven. 126 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 07:12:28,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678144217] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:12:28,192 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:12:28,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 37 [2022-12-13 07:12:28,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632124088] [2022-12-13 07:12:28,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:12:28,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-12-13 07:12:28,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-12-13 07:12:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 07:12:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:28,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:28,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 11.675675675675675) internal successors, (432), 37 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 07:12:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 07:12:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-13 07:12:29,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 07:12:29,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:29,919 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash 146237290, now seen corresponding path program 1 times [2022-12-13 07:12:29,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:29,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69156417] [2022-12-13 07:12:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:29,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 80 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:30,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:30,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69156417] [2022-12-13 07:12:30,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69156417] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:30,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343223404] [2022-12-13 07:12:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:30,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:30,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:30,236 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:30,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 07:12:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:30,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 07:12:30,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 07:12:30,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:30,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343223404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:30,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:30,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2022-12-13 07:12:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038394392] [2022-12-13 07:12:30,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:30,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 07:12:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 07:12:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2022-12-13 07:12:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:30,533 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:30,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.6) internal successors, (219), 15 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:30,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:30,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:30,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:30,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-12-13 07:12:30,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-12-13 07:12:30,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 07:12:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-13 07:12:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:31,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 07:12:31,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:31,265 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:31,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:31,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1353007327, now seen corresponding path program 3 times [2022-12-13 07:12:31,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:31,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132055864] [2022-12-13 07:12:31,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:31,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:31,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:31,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132055864] [2022-12-13 07:12:31,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132055864] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:31,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500839523] [2022-12-13 07:12:31,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 07:12:31,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:31,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:31,508 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:31,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 07:12:31,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 07:12:31,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 07:12:31,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 07:12:31,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:32,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:12:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:32,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500839523] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:12:32,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:12:32,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-12-13 07:12:32,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100094880] [2022-12-13 07:12:32,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:12:32,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 07:12:32,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 07:12:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 07:12:32,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:32,341 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:32,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 11.95) internal successors, (478), 41 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:32,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:32,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:32,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-12-13 07:12:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:32,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-13 07:12:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 07:12:33,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 07:12:33,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 07:12:33,967 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:33,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1997550208, now seen corresponding path program 1 times [2022-12-13 07:12:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:33,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083716525] [2022-12-13 07:12:33,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:34,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 525 proven. 523 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-12-13 07:12:34,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:34,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083716525] [2022-12-13 07:12:34,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083716525] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:34,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877421410] [2022-12-13 07:12:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:34,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:34,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:34,464 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:34,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 07:12:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:34,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 07:12:34,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:34,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 919 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-12-13 07:12:34,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:12:34,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877421410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:12:34,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:12:34,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [25] total 38 [2022-12-13 07:12:34,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907606501] [2022-12-13 07:12:34,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:12:34,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 07:12:34,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 07:12:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 07:12:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:34,846 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:34,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.133333333333333) internal successors, (212), 15 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-12-13 07:12:34,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-12-13 07:12:34,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:34,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-12-13 07:12:34,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:56,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-13 07:12:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:56,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 07:12:56,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:56,831 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:12:56,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:12:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash 600595192, now seen corresponding path program 2 times [2022-12-13 07:12:56,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:12:56,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635680362] [2022-12-13 07:12:56,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:12:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:12:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:12:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 76 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:57,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:12:57,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635680362] [2022-12-13 07:12:57,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635680362] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:12:57,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167269151] [2022-12-13 07:12:57,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 07:12:57,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:12:57,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:12:57,102 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:12:57,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 07:12:57,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 07:12:57,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 07:12:57,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 07:12:57,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:12:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:57,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:12:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:12:57,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167269151] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:12:57,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:12:57,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 38 [2022-12-13 07:12:57,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304795908] [2022-12-13 07:12:57,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:12:57,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-13 07:12:57,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:12:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-13 07:12:57,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=1060, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 07:12:57,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:12:57,962 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:12:57,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 14.31578947368421) internal successors, (544), 38 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:12:57,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:57,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 07:12:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:12:57,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 07:14:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-13 07:14:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:14:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-12-13 07:14:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:14:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-12-13 07:14:08,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 07:14:08,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 07:14:08,520 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 07:14:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:14:08,521 INFO L85 PathProgramCache]: Analyzing trace with hash -235683786, now seen corresponding path program 4 times [2022-12-13 07:14:08,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:14:08,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069385285] [2022-12-13 07:14:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:14:08,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:14:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:14:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:14:08,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:14:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069385285] [2022-12-13 07:14:08,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069385285] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:14:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219850533] [2022-12-13 07:14:08,953 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 07:14:08,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:14:08,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:14:08,954 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:14:08,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4586ea4-7d22-40b7-bd6e-caee04197077/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 07:14:09,045 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 07:14:09,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 07:14:09,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 07:14:09,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:14:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:14:09,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:14:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:14:09,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219850533] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:14:09,813 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:14:09,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-12-13 07:14:09,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301045930] [2022-12-13 07:14:09,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:14:09,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 07:14:09,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:14:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 07:14:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=1239, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 07:14:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:14:09,816 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:14:09,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 13.975) internal successors, (559), 41 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:14:09,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-12-13 07:14:09,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.