./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- 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-38b53e6 [2022-11-25 17:36:49,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:36:49,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:36:49,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:36:49,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:36:49,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:36:49,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:36:49,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:36:49,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:36:49,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:36:49,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:36:49,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:36:49,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:36:49,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:36:49,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:36:49,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:36:49,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:36:49,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:36:49,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:36:49,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:36:49,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:36:49,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:36:49,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:36:49,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:36:49,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:36:49,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:36:49,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:36:49,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:36:49,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:36:49,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:36:49,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:36:49,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:36:49,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:36:49,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:36:49,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:36:49,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:36:49,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:36:49,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:36:49,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:36:49,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:36:49,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:36:49,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:36:49,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:36:49,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:36:49,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:36:49,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:36:49,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:36:49,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:36:49,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:36:49,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:36:49,195 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:36:49,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:36:49,197 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:36:49,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:36:49,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:36:49,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:36:49,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:36:49,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:36:49,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:36:49,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:36:49,199 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:36:49,199 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:36:49,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:36:49,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:36:49,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:36:49,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:36:49,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:36:49,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:36:49,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:36:49,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:36:49,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:36:49,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:36:49,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:36:49,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:36:49,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:36:49,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:36:49,204 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:36:49,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:36:49,205 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2022-11-25 17:36:49,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:36:49,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:36:49,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:36:49,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:36:49,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:36:49,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2022-11-25 17:36:52,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:36:53,255 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:36:53,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2022-11-25 17:36:53,275 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/data/18291b80d/22960993e001428fb43195b61c8dc5e9/FLAG9f02856bb [2022-11-25 17:36:53,292 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/data/18291b80d/22960993e001428fb43195b61c8dc5e9 [2022-11-25 17:36:53,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:36:53,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:36:53,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:36:53,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:36:53,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:36:53,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:36:53" (1/1) ... [2022-11-25 17:36:53,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfce9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:53, skipping insertion in model container [2022-11-25 17:36:53,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:36:53" (1/1) ... [2022-11-25 17:36:53,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:36:53,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:36:54,118 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_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2022-11-25 17:36:54,321 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 17:36:54,325 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_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2022-11-25 17:36:54,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:36:54,349 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:36:54,386 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_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2022-11-25 17:36:54,494 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 17:36:54,497 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_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2022-11-25 17:36:54,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:36:54,551 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:36:54,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54 WrapperNode [2022-11-25 17:36:54,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:36:54,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:36:54,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:36:54,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:36:54,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,690 INFO L138 Inliner]: procedures = 177, calls = 388, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1404 [2022-11-25 17:36:54,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:36:54,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:36:54,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:36:54,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:36:54,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,943 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:54,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:55,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:36:55,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:36:55,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:36:55,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:36:55,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (1/1) ... [2022-11-25 17:36:55,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:36:55,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:36:55,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:36:55,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:36:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:36:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:36:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:36:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:36:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:36:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:36:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:36:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:36:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:36:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:36:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 17:36:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:36:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:36:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:36:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:36:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:36:55,445 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:36:55,447 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:36:58,028 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:36:58,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:36:58,041 INFO L300 CfgBuilder]: Removed 83 assume(true) statements. [2022-11-25 17:36:58,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:36:58 BoogieIcfgContainer [2022-11-25 17:36:58,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:36:58,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:36:58,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:36:58,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:36:58,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:36:53" (1/3) ... [2022-11-25 17:36:58,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a04decf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:36:58, skipping insertion in model container [2022-11-25 17:36:58,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:36:54" (2/3) ... [2022-11-25 17:36:58,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a04decf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:36:58, skipping insertion in model container [2022-11-25 17:36:58,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:36:58" (3/3) ... [2022-11-25 17:36:58,054 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-1.i [2022-11-25 17:36:58,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:36:58,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-25 17:36:58,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:36:58,155 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=PETRI_NET, 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;@3c9101f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:36:58,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 17:36:58,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 269 states, 245 states have (on average 1.7142857142857142) internal successors, (420), 260 states have internal predecessors, (420), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:36:58,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 17:36:58,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:36:58,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:36:58,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:36:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:36:58,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1126968937, now seen corresponding path program 1 times [2022-11-25 17:36:58,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:36:58,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429126549] [2022-11-25 17:36:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:36:58,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:36:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:36:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:36:58,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:36:58,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429126549] [2022-11-25 17:36:58,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429126549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:36:58,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:36:58,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:36:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997087037] [2022-11-25 17:36:58,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:36:58,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:36:58,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:36:58,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:36:58,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:36:58,502 INFO L87 Difference]: Start difference. First operand has 269 states, 245 states have (on average 1.7142857142857142) internal successors, (420), 260 states have internal predecessors, (420), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:36:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:36:58,596 INFO L93 Difference]: Finished difference Result 534 states and 887 transitions. [2022-11-25 17:36:58,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:36:58,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2022-11-25 17:36:58,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:36:58,627 INFO L225 Difference]: With dead ends: 534 [2022-11-25 17:36:58,628 INFO L226 Difference]: Without dead ends: 263 [2022-11-25 17:36:58,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:36:58,646 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:36:58,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:36:58,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-11-25 17:36:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-11-25 17:36:58,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 242 states have (on average 1.3305785123966942) internal successors, (322), 254 states have internal predecessors, (322), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:36:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 344 transitions. [2022-11-25 17:36:58,755 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 344 transitions. Word has length 6 [2022-11-25 17:36:58,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:36:58,756 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 344 transitions. [2022-11-25 17:36:58,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:36:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 344 transitions. [2022-11-25 17:36:58,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:36:58,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:36:58,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:36:58,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:36:58,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:36:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:36:58,763 INFO L85 PathProgramCache]: Analyzing trace with hash 576299446, now seen corresponding path program 1 times [2022-11-25 17:36:58,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:36:58,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52859386] [2022-11-25 17:36:58,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:36:58,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:36:58,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:36:58,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706626549] [2022-11-25 17:36:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:36:58,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:36:58,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:36:58,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:36:58,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:36:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:36:59,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:36:59,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:36:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:36:59,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:36:59,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:36:59,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52859386] [2022-11-25 17:36:59,049 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:36:59,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706626549] [2022-11-25 17:36:59,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706626549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:36:59,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:36:59,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:36:59,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422416126] [2022-11-25 17:36:59,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:36:59,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:36:59,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:36:59,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:36:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:36:59,064 INFO L87 Difference]: Start difference. First operand 263 states and 344 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:36:59,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:36:59,186 INFO L93 Difference]: Finished difference Result 597 states and 790 transitions. [2022-11-25 17:36:59,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:36:59,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-25 17:36:59,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:36:59,191 INFO L225 Difference]: With dead ends: 597 [2022-11-25 17:36:59,191 INFO L226 Difference]: Without dead ends: 513 [2022-11-25 17:36:59,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:36:59,193 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 308 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:36:59,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 698 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:36:59,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-11-25 17:36:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 338. [2022-11-25 17:36:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 312 states have (on average 1.3461538461538463) internal successors, (420), 329 states have internal predecessors, (420), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:36:59,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 452 transitions. [2022-11-25 17:36:59,219 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 452 transitions. Word has length 7 [2022-11-25 17:36:59,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:36:59,220 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 452 transitions. [2022-11-25 17:36:59,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:36:59,220 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 452 transitions. [2022-11-25 17:36:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:36:59,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:36:59,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:36:59,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:36:59,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:36:59,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:36:59,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:36:59,429 INFO L85 PathProgramCache]: Analyzing trace with hash 556530162, now seen corresponding path program 1 times [2022-11-25 17:36:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:36:59,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200961774] [2022-11-25 17:36:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:36:59,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:36:59,461 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:36:59,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591236015] [2022-11-25 17:36:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:36:59,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:36:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:36:59,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:36:59,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:36:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:36:59,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:36:59,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:36:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:36:59,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:36:59,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:36:59,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200961774] [2022-11-25 17:36:59,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:36:59,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591236015] [2022-11-25 17:36:59,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591236015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:36:59,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:36:59,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:36:59,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402172647] [2022-11-25 17:36:59,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:36:59,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:36:59,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:36:59,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:36:59,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:36:59,730 INFO L87 Difference]: Start difference. First operand 338 states and 452 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:36:59,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:36:59,804 INFO L93 Difference]: Finished difference Result 514 states and 676 transitions. [2022-11-25 17:36:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:36:59,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-25 17:36:59,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:36:59,808 INFO L225 Difference]: With dead ends: 514 [2022-11-25 17:36:59,809 INFO L226 Difference]: Without dead ends: 511 [2022-11-25 17:36:59,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:36:59,811 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 301 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:36:59,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 730 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:36:59,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-11-25 17:36:59,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 342. [2022-11-25 17:36:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.3354430379746836) internal successors, (422), 333 states have internal predecessors, (422), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:36:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 454 transitions. [2022-11-25 17:36:59,832 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 454 transitions. Word has length 7 [2022-11-25 17:36:59,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:36:59,833 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 454 transitions. [2022-11-25 17:36:59,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:36:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 454 transitions. [2022-11-25 17:36:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 17:36:59,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:36:59,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:36:59,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 17:37:00,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:00,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:00,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:00,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1509086869, now seen corresponding path program 1 times [2022-11-25 17:37:00,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:00,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228002025] [2022-11-25 17:37:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:00,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:00,450 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:00,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972386121] [2022-11-25 17:37:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:00,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:00,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:00,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:00,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:37:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:01,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:37:01,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:02,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:02,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228002025] [2022-11-25 17:37:02,002 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972386121] [2022-11-25 17:37:02,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972386121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:02,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:02,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:37:02,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3251879] [2022-11-25 17:37:02,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:02,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:37:02,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:02,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:37:02,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:02,006 INFO L87 Difference]: Start difference. First operand 342 states and 454 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:02,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:02,138 INFO L93 Difference]: Finished difference Result 698 states and 932 transitions. [2022-11-25 17:37:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:37:02,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-11-25 17:37:02,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:02,148 INFO L225 Difference]: With dead ends: 698 [2022-11-25 17:37:02,149 INFO L226 Difference]: Without dead ends: 363 [2022-11-25 17:37:02,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:02,151 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 9 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:02,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 633 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-25 17:37:02,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 362. [2022-11-25 17:37:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 336 states have (on average 1.3154761904761905) internal successors, (442), 353 states have internal predecessors, (442), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:37:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 474 transitions. [2022-11-25 17:37:02,198 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 474 transitions. Word has length 103 [2022-11-25 17:37:02,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:02,199 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 474 transitions. [2022-11-25 17:37:02,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 474 transitions. [2022-11-25 17:37:02,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 17:37:02,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:02,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:02,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:02,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:02,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:02,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1749326615, now seen corresponding path program 1 times [2022-11-25 17:37:02,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:02,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759562889] [2022-11-25 17:37:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:02,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:02,712 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:02,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869946796] [2022-11-25 17:37:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:02,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:02,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:02,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:02,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:37:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:04,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2980 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:37:04,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:04,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:04,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:04,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759562889] [2022-11-25 17:37:04,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:04,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869946796] [2022-11-25 17:37:04,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869946796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:04,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:04,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:37:04,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830086191] [2022-11-25 17:37:04,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:04,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:37:04,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:37:04,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:04,293 INFO L87 Difference]: Start difference. First operand 362 states and 474 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:04,396 INFO L93 Difference]: Finished difference Result 738 states and 972 transitions. [2022-11-25 17:37:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:37:04,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-11-25 17:37:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:04,402 INFO L225 Difference]: With dead ends: 738 [2022-11-25 17:37:04,402 INFO L226 Difference]: Without dead ends: 383 [2022-11-25 17:37:04,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:04,405 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 9 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:04,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 633 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:04,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-25 17:37:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 382. [2022-11-25 17:37:04,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 356 states have (on average 1.297752808988764) internal successors, (462), 373 states have internal predecessors, (462), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:37:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 494 transitions. [2022-11-25 17:37:04,420 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 494 transitions. Word has length 103 [2022-11-25 17:37:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:04,421 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 494 transitions. [2022-11-25 17:37:04,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:04,421 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 494 transitions. [2022-11-25 17:37:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 17:37:04,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:04,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:04,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:04,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:04,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:04,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:04,647 INFO L85 PathProgramCache]: Analyzing trace with hash 494656683, now seen corresponding path program 1 times [2022-11-25 17:37:04,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:04,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663590032] [2022-11-25 17:37:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:04,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:04,926 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:04,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099115189] [2022-11-25 17:37:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:04,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:04,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:04,939 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:04,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:37:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:06,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:37:06,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:06,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:06,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:06,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663590032] [2022-11-25 17:37:06,759 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:06,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099115189] [2022-11-25 17:37:06,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099115189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:06,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:06,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:37:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654735921] [2022-11-25 17:37:06,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:06,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:37:06,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:06,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:37:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:37:06,769 INFO L87 Difference]: Start difference. First operand 382 states and 494 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:06,887 INFO L93 Difference]: Finished difference Result 747 states and 971 transitions. [2022-11-25 17:37:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:37:06,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-11-25 17:37:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:06,892 INFO L225 Difference]: With dead ends: 747 [2022-11-25 17:37:06,892 INFO L226 Difference]: Without dead ends: 372 [2022-11-25 17:37:06,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:37:06,896 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 310 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:06,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 665 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-25 17:37:06,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 368. [2022-11-25 17:37:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 342 states have (on average 1.2894736842105263) internal successors, (441), 359 states have internal predecessors, (441), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:37:06,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 473 transitions. [2022-11-25 17:37:06,918 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 473 transitions. Word has length 103 [2022-11-25 17:37:06,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:06,919 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 473 transitions. [2022-11-25 17:37:06,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:06,919 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 473 transitions. [2022-11-25 17:37:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 17:37:06,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:06,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:06,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:07,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:37:07,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:07,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash -419194439, now seen corresponding path program 1 times [2022-11-25 17:37:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:07,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962762244] [2022-11-25 17:37:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:07,426 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:07,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21137942] [2022-11-25 17:37:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:07,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:07,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:07,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:07,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:37:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:09,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:37:09,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:09,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:09,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:09,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962762244] [2022-11-25 17:37:09,289 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:09,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21137942] [2022-11-25 17:37:09,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21137942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:09,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:09,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:37:09,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067626735] [2022-11-25 17:37:09,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:09,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:37:09,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:37:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:37:09,292 INFO L87 Difference]: Start difference. First operand 368 states and 473 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:09,413 INFO L93 Difference]: Finished difference Result 806 states and 1035 transitions. [2022-11-25 17:37:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:37:09,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-11-25 17:37:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:09,419 INFO L225 Difference]: With dead ends: 806 [2022-11-25 17:37:09,419 INFO L226 Difference]: Without dead ends: 445 [2022-11-25 17:37:09,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:37:09,425 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 303 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:09,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 951 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-25 17:37:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 354. [2022-11-25 17:37:09,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 328 states have (on average 1.2804878048780488) internal successors, (420), 345 states have internal predecessors, (420), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:37:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 452 transitions. [2022-11-25 17:37:09,455 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 452 transitions. Word has length 103 [2022-11-25 17:37:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:09,456 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 452 transitions. [2022-11-25 17:37:09,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 452 transitions. [2022-11-25 17:37:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 17:37:09,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:09,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:09,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:09,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:09,678 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:09,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1604741739, now seen corresponding path program 1 times [2022-11-25 17:37:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:09,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77638370] [2022-11-25 17:37:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:09,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:09,945 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:09,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144535356] [2022-11-25 17:37:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:09,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:09,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:09,948 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:09,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:37:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:11,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:37:11,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:12,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:12,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:12,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77638370] [2022-11-25 17:37:12,156 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:12,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144535356] [2022-11-25 17:37:12,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144535356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:12,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:12,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:37:12,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544144337] [2022-11-25 17:37:12,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:12,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:37:12,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:12,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:37:12,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:37:12,159 INFO L87 Difference]: Start difference. First operand 354 states and 452 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:12,221 INFO L93 Difference]: Finished difference Result 354 states and 452 transitions. [2022-11-25 17:37:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:37:12,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-11-25 17:37:12,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:12,224 INFO L225 Difference]: With dead ends: 354 [2022-11-25 17:37:12,224 INFO L226 Difference]: Without dead ends: 352 [2022-11-25 17:37:12,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:37:12,226 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 197 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:12,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 640 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:37:12,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-25 17:37:12,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2022-11-25 17:37:12,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 328 states have (on average 1.274390243902439) internal successors, (418), 343 states have internal predecessors, (418), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 17:37:12,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 450 transitions. [2022-11-25 17:37:12,242 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 450 transitions. Word has length 103 [2022-11-25 17:37:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:12,243 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 450 transitions. [2022-11-25 17:37:12,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:12,243 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 450 transitions. [2022-11-25 17:37:12,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 17:37:12,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:12,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:12,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:12,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:12,447 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1792612892, now seen corresponding path program 1 times [2022-11-25 17:37:12,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:12,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415258592] [2022-11-25 17:37:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:12,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:12,677 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:12,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352701128] [2022-11-25 17:37:12,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:12,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:12,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:12,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:12,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:37:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:14,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:37:14,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:14,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:14,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:14,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415258592] [2022-11-25 17:37:14,983 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:14,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352701128] [2022-11-25 17:37:14,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352701128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:14,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:14,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:37:14,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111051931] [2022-11-25 17:37:14,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:14,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:37:14,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:14,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:37:14,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:37:14,986 INFO L87 Difference]: Start difference. First operand 352 states and 450 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:15,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:15,088 INFO L93 Difference]: Finished difference Result 532 states and 666 transitions. [2022-11-25 17:37:15,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:37:15,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-11-25 17:37:15,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:15,091 INFO L225 Difference]: With dead ends: 532 [2022-11-25 17:37:15,092 INFO L226 Difference]: Without dead ends: 531 [2022-11-25 17:37:15,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:37:15,093 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 190 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:15,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1022 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:15,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-11-25 17:37:15,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2022-11-25 17:37:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 499 states have (on average 1.2444889779559118) internal successors, (621), 514 states have internal predecessors, (621), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-25 17:37:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 665 transitions. [2022-11-25 17:37:15,117 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 665 transitions. Word has length 104 [2022-11-25 17:37:15,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:15,118 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 665 transitions. [2022-11-25 17:37:15,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:15,118 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 665 transitions. [2022-11-25 17:37:15,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 17:37:15,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:15,120 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:15,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:15,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 17:37:15,337 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:15,337 INFO L85 PathProgramCache]: Analyzing trace with hash 3046928, now seen corresponding path program 1 times [2022-11-25 17:37:15,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:15,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459889312] [2022-11-25 17:37:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:15,572 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:15,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468637276] [2022-11-25 17:37:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:15,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:15,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:15,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:15,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:37:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:17,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 2985 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:37:17,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:37:18,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:18,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:18,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459889312] [2022-11-25 17:37:18,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:18,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468637276] [2022-11-25 17:37:18,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468637276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:18,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:18,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:37:18,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753162058] [2022-11-25 17:37:18,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:18,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:37:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:18,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:37:18,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:18,370 INFO L87 Difference]: Start difference. First operand 529 states and 665 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:18,489 INFO L93 Difference]: Finished difference Result 992 states and 1272 transitions. [2022-11-25 17:37:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:37:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-25 17:37:18,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:18,495 INFO L225 Difference]: With dead ends: 992 [2022-11-25 17:37:18,495 INFO L226 Difference]: Without dead ends: 608 [2022-11-25 17:37:18,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:18,497 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 135 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:18,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 691 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-11-25 17:37:18,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 604. [2022-11-25 17:37:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 564 states have (on average 1.2641843971631206) internal successors, (713), 589 states have internal predecessors, (713), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-25 17:37:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 777 transitions. [2022-11-25 17:37:18,528 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 777 transitions. Word has length 109 [2022-11-25 17:37:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:18,529 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 777 transitions. [2022-11-25 17:37:18,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:37:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 777 transitions. [2022-11-25 17:37:18,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 17:37:18,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:18,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:18,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:18,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:37:18,752 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:18,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:18,752 INFO L85 PathProgramCache]: Analyzing trace with hash -934944872, now seen corresponding path program 1 times [2022-11-25 17:37:18,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:18,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812010189] [2022-11-25 17:37:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:18,923 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:18,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42637317] [2022-11-25 17:37:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:18,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:18,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:18,925 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:18,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:37:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:21,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:37:21,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:37:21,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:21,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:21,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812010189] [2022-11-25 17:37:21,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:21,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42637317] [2022-11-25 17:37:21,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42637317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:21,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:21,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:37:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202716977] [2022-11-25 17:37:21,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:21,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:37:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:21,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:37:21,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:21,307 INFO L87 Difference]: Start difference. First operand 604 states and 777 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:37:21,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:21,418 INFO L93 Difference]: Finished difference Result 1148 states and 1486 transitions. [2022-11-25 17:37:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:37:21,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 124 [2022-11-25 17:37:21,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:21,427 INFO L225 Difference]: With dead ends: 1148 [2022-11-25 17:37:21,427 INFO L226 Difference]: Without dead ends: 602 [2022-11-25 17:37:21,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:37:21,430 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 15 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:21,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 639 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:37:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-25 17:37:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2022-11-25 17:37:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 562 states have (on average 1.2633451957295374) internal successors, (710), 587 states have internal predecessors, (710), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-25 17:37:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 774 transitions. [2022-11-25 17:37:21,470 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 774 transitions. Word has length 124 [2022-11-25 17:37:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:21,470 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 774 transitions. [2022-11-25 17:37:21,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:37:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 774 transitions. [2022-11-25 17:37:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 17:37:21,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:21,473 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:21,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:21,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:21,696 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:21,697 INFO L85 PathProgramCache]: Analyzing trace with hash 545679673, now seen corresponding path program 1 times [2022-11-25 17:37:21,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:21,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437883278] [2022-11-25 17:37:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:21,814 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:21,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862368652] [2022-11-25 17:37:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:21,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:21,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:21,816 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:21,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:37:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:37:31,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:37:31,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:37:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:37:31,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:37:31,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:37:31,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437883278] [2022-11-25 17:37:31,623 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:37:31,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862368652] [2022-11-25 17:37:31,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862368652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:37:31,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:37:31,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:37:31,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307109380] [2022-11-25 17:37:31,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:37:31,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:37:31,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:37:31,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:37:31,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:37:31,626 INFO L87 Difference]: Start difference. First operand 602 states and 774 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:37:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:31,707 INFO L93 Difference]: Finished difference Result 1155 states and 1505 transitions. [2022-11-25 17:37:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:37:31,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 139 [2022-11-25 17:37:31,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:37:31,712 INFO L225 Difference]: With dead ends: 1155 [2022-11-25 17:37:31,712 INFO L226 Difference]: Without dead ends: 605 [2022-11-25 17:37:31,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:37:31,714 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 2 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:37:31,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 965 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:37:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-25 17:37:31,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2022-11-25 17:37:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 564 states have (on average 1.2641843971631206) internal successors, (713), 590 states have internal predecessors, (713), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-11-25 17:37:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 781 transitions. [2022-11-25 17:37:31,744 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 781 transitions. Word has length 139 [2022-11-25 17:37:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:37:31,745 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 781 transitions. [2022-11-25 17:37:31,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:37:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 781 transitions. [2022-11-25 17:37:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 17:37:31,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:37:31,748 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:37:31,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:37:31,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:31,974 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:37:31,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:37:31,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1068737789, now seen corresponding path program 1 times [2022-11-25 17:37:31,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:37:31,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254704824] [2022-11-25 17:37:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:31,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:37:32,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:37:32,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818148986] [2022-11-25 17:37:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:37:32,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:37:32,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:37:32,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:37:32,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47f920a-3917-48e8-8a5d-0cdaccf4ca5f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process