./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/twisted.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/twisted.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:10:50,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:10:50,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:10:50,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:10:50,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:10:50,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:10:50,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:10:50,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:10:50,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:10:50,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:10:50,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:10:50,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:10:50,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:10:50,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:10:50,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:10:50,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:10:50,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:10:50,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:10:50,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:10:50,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:10:50,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:10:50,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:10:50,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:10:50,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:10:50,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:10:50,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:10:50,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:10:50,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:10:50,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:10:50,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:10:50,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:10:50,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:10:50,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:10:50,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:10:50,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:10:50,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:10:50,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:10:50,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:10:50,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:10:50,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:10:50,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:10:50,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:10:50,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:10:50,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:10:50,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:10:50,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:10:50,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:10:50,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:10:50,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:10:50,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:10:50,899 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:10:50,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:10:50,900 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:10:50,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:10:50,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:10:50,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:10:50,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:10:50,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:10:50,901 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:10:50,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:10:50,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:10:50,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:10:50,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:10:50,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:10:50,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:10:50,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:10:50,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:10:50,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:10:50,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:10:50,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:10:50,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:10:50,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:10:50,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:10:50,904 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:10:50,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:10:50,904 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:10:50,904 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_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 [2022-12-13 12:10:51,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:10:51,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:10:51,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:10:51,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:10:51,127 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:10:51,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-numeric/twisted.c [2022-12-13 12:10:53,773 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:10:53,903 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:10:53,903 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/sv-benchmarks/c/termination-numeric/twisted.c [2022-12-13 12:10:53,907 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/data/9253a310e/81caa43b3fce41c58cc7766f224468db/FLAGe08949b46 [2022-12-13 12:10:53,919 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/data/9253a310e/81caa43b3fce41c58cc7766f224468db [2022-12-13 12:10:53,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:10:53,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:10:53,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:10:53,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:10:53,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:10:53,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:10:53" (1/1) ... [2022-12-13 12:10:53,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2440d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:53, skipping insertion in model container [2022-12-13 12:10:53,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:10:53" (1/1) ... [2022-12-13 12:10:53,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:10:53,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:10:54,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:10:54,073 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:10:54,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:10:54,093 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:10:54,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54 WrapperNode [2022-12-13 12:10:54,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:10:54,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:10:54,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:10:54,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:10:54,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,118 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-12-13 12:10:54,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:10:54,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:10:54,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:10:54,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:10:54,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:10:54,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:10:54,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:10:54,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:10:54,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (1/1) ... [2022-12-13 12:10:54,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:10:54,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:54,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:10:54,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:10:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:10:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:10:54,258 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:10:54,260 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:10:54,359 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:10:54,364 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:10:54,364 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:10:54,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:10:54 BoogieIcfgContainer [2022-12-13 12:10:54,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:10:54,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:10:54,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:10:54,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:10:54,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:10:53" (1/3) ... [2022-12-13 12:10:54,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134cdd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:10:54, skipping insertion in model container [2022-12-13 12:10:54,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:10:54" (2/3) ... [2022-12-13 12:10:54,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134cdd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:10:54, skipping insertion in model container [2022-12-13 12:10:54,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:10:54" (3/3) ... [2022-12-13 12:10:54,373 INFO L112 eAbstractionObserver]: Analyzing ICFG twisted.c [2022-12-13 12:10:54,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:10:54,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 12:10:54,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:10:54,448 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;@28c7f24d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:10:54,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 12:10:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 12:10:54,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:54,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:10:54,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:54,469 INFO L85 PathProgramCache]: Analyzing trace with hash 28711221, now seen corresponding path program 1 times [2022-12-13 12:10:54,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:54,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405731543] [2022-12-13 12:10:54,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:54,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:54,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:54,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405731543] [2022-12-13 12:10:54,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405731543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:54,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:54,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:10:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895799107] [2022-12-13 12:10:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:54,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:10:54,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:54,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:10:54,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:10:54,640 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:54,652 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-12-13 12:10:54,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:10:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-13 12:10:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:54,659 INFO L225 Difference]: With dead ends: 46 [2022-12-13 12:10:54,659 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 12:10:54,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:10:54,664 INFO L413 NwaCegarLoop]: 27 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, 27 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 [2022-12-13 12:10:54,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 12:10:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-13 12:10:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-12-13 12:10:54,688 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 5 [2022-12-13 12:10:54,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:54,688 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-12-13 12:10:54,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-12-13 12:10:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 12:10:54,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:54,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:10:54,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:10:54,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:54,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:54,690 INFO L85 PathProgramCache]: Analyzing trace with hash 28694852, now seen corresponding path program 1 times [2022-12-13 12:10:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:54,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439944421] [2022-12-13 12:10:54,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:54,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:54,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:54,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439944421] [2022-12-13 12:10:54,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439944421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:54,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:54,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:10:54,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900542919] [2022-12-13 12:10:54,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:54,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:10:54,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:10:54,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:10:54,742 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:54,783 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-12-13 12:10:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:10:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-12-13 12:10:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:54,785 INFO L225 Difference]: With dead ends: 20 [2022-12-13 12:10:54,785 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 12:10:54,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:10:54,786 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:54,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:54,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 12:10:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 12:10:54,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-12-13 12:10:54,789 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2022-12-13 12:10:54,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:54,789 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-12-13 12:10:54,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,790 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-13 12:10:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 12:10:54,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:54,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:10:54,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:10:54,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:54,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash 889540457, now seen corresponding path program 1 times [2022-12-13 12:10:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:54,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856141732] [2022-12-13 12:10:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:54,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:54,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:54,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:54,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856141732] [2022-12-13 12:10:54,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856141732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:54,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:54,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:10:54,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207054078] [2022-12-13 12:10:54,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:54,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:10:54,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:54,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:10:54,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:10:54,831 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2022-12-13 12:10:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:54,883 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-12-13 12:10:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:10:54,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2022-12-13 12:10:54,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:54,884 INFO L225 Difference]: With dead ends: 35 [2022-12-13 12:10:54,884 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 12:10:54,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:10:54,886 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:54,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 12:10:54,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-12-13 12:10:54,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-12-13 12:10:54,891 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 6 [2022-12-13 12:10:54,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:54,891 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-12-13 12:10:54,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2022-12-13 12:10:54,891 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-12-13 12:10:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 12:10:54,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:54,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:54,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:10:54,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903811, now seen corresponding path program 1 times [2022-12-13 12:10:54,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:54,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694964573] [2022-12-13 12:10:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:54,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:54,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:54,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694964573] [2022-12-13 12:10:54,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694964573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:54,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:54,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:10:54,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371197507] [2022-12-13 12:10:54,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:54,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:10:54,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:10:54,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:10:54,927 INFO L87 Difference]: Start difference. First operand 28 states and 36 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) [2022-12-13 12:10:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:54,962 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-12-13 12:10:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:10:54,963 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 [2022-12-13 12:10:54,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:54,963 INFO L225 Difference]: With dead ends: 41 [2022-12-13 12:10:54,963 INFO L226 Difference]: Without dead ends: 40 [2022-12-13 12:10:54,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:10:54,965 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:54,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:54,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-13 12:10:54,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2022-12-13 12:10:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2022-12-13 12:10:54,970 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 7 [2022-12-13 12:10:54,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:54,971 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2022-12-13 12:10:54,971 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) [2022-12-13 12:10:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2022-12-13 12:10:54,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 12:10:54,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:54,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:54,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:10:54,972 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:54,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:54,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903861, now seen corresponding path program 1 times [2022-12-13 12:10:54,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:54,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914747174] [2022-12-13 12:10:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:54,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:55,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914747174] [2022-12-13 12:10:55,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914747174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:55,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:55,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:10:55,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703686432] [2022-12-13 12:10:55,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:55,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:10:55,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:10:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:10:55,006 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-12-13 12:10:55,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:55,033 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2022-12-13 12:10:55,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:10:55,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-12-13 12:10:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:55,035 INFO L225 Difference]: With dead ends: 33 [2022-12-13 12:10:55,035 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 12:10:55,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:10:55,036 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:55,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 12:10:55,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-12-13 12:10:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-12-13 12:10:55,046 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 7 [2022-12-13 12:10:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:55,046 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-12-13 12:10:55,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-12-13 12:10:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-12-13 12:10:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 12:10:55,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:55,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:55,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:10:55,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:55,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:55,048 INFO L85 PathProgramCache]: Analyzing trace with hash 148443370, now seen corresponding path program 1 times [2022-12-13 12:10:55,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:55,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152395017] [2022-12-13 12:10:55,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:55,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152395017] [2022-12-13 12:10:55,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152395017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:55,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:55,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:10:55,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378960215] [2022-12-13 12:10:55,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:55,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:10:55,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:55,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:10:55,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:10:55,090 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:55,119 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-12-13 12:10:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:10:55,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-13 12:10:55,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:55,120 INFO L225 Difference]: With dead ends: 39 [2022-12-13 12:10:55,120 INFO L226 Difference]: Without dead ends: 36 [2022-12-13 12:10:55,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:10:55,122 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:55,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:55,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-13 12:10:55,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-12-13 12:10:55,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2022-12-13 12:10:55,129 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 8 [2022-12-13 12:10:55,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:55,130 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-12-13 12:10:55,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2022-12-13 12:10:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 12:10:55,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:55,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:55,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:10:55,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash 148444908, now seen corresponding path program 1 times [2022-12-13 12:10:55,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:55,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709545778] [2022-12-13 12:10:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:55,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709545778] [2022-12-13 12:10:55,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709545778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:55,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:55,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:10:55,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281556607] [2022-12-13 12:10:55,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:55,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:10:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:55,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:10:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:10:55,171 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:55,203 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-12-13 12:10:55,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:10:55,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-12-13 12:10:55,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:55,204 INFO L225 Difference]: With dead ends: 49 [2022-12-13 12:10:55,204 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 12:10:55,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:10:55,206 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:55,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:55,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 12:10:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-12-13 12:10:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-12-13 12:10:55,214 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 8 [2022-12-13 12:10:55,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:55,214 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-12-13 12:10:55,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,215 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-12-13 12:10:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 12:10:55,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:55,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:55,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:10:55,216 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:55,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1985747964, now seen corresponding path program 1 times [2022-12-13 12:10:55,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:55,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394096728] [2022-12-13 12:10:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:55,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394096728] [2022-12-13 12:10:55,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394096728] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:55,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833835941] [2022-12-13 12:10:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:55,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:55,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:10:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:10:55,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:10:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833835941] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:10:55,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:10:55,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 12:10:55,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887873322] [2022-12-13 12:10:55,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:10:55,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:10:55,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:55,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:10:55,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:10:55,402 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:55,515 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2022-12-13 12:10:55,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:10:55,516 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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 10 [2022-12-13 12:10:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:55,518 INFO L225 Difference]: With dead ends: 119 [2022-12-13 12:10:55,518 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 12:10:55,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:10:55,519 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 74 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:55,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 76 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:10:55,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 12:10:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2022-12-13 12:10:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 77 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2022-12-13 12:10:55,532 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 10 [2022-12-13 12:10:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:55,532 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2022-12-13 12:10:55,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2022-12-13 12:10:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 12:10:55,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:55,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:55,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:10:55,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:55,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1985673441, now seen corresponding path program 1 times [2022-12-13 12:10:55,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:55,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019508472] [2022-12-13 12:10:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:55,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019508472] [2022-12-13 12:10:55,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019508472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:55,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:55,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:10:55,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160778288] [2022-12-13 12:10:55,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:55,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:10:55,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:55,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:10:55,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:10:55,873 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:55,930 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2022-12-13 12:10:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:10:55,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2022-12-13 12:10:55,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:55,932 INFO L225 Difference]: With dead ends: 83 [2022-12-13 12:10:55,932 INFO L226 Difference]: Without dead ends: 82 [2022-12-13 12:10:55,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:10:55,933 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:55,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:55,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-13 12:10:55,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-12-13 12:10:55,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 78 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 107 transitions. [2022-12-13 12:10:55,940 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 107 transitions. Word has length 10 [2022-12-13 12:10:55,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:55,940 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 107 transitions. [2022-12-13 12:10:55,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2022-12-13 12:10:55,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:10:55,941 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:55,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:55,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:10:55,941 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:55,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:55,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993400, now seen corresponding path program 1 times [2022-12-13 12:10:55,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:55,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672399924] [2022-12-13 12:10:55,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:55,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672399924] [2022-12-13 12:10:55,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672399924] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275766558] [2022-12-13 12:10:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:55,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:55,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:55,978 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:55,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:10:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:56,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:10:56,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:56,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:10:56,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275766558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:56,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:10:56,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-13 12:10:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690801864] [2022-12-13 12:10:56,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:56,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:10:56,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:56,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:10:56,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:10:56,062 INFO L87 Difference]: Start difference. First operand 79 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:56,124 INFO L93 Difference]: Finished difference Result 95 states and 125 transitions. [2022-12-13 12:10:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:10:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-12-13 12:10:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:56,125 INFO L225 Difference]: With dead ends: 95 [2022-12-13 12:10:56,125 INFO L226 Difference]: Without dead ends: 94 [2022-12-13 12:10:56,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:10:56,126 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:56,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:56,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-13 12:10:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2022-12-13 12:10:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 87 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2022-12-13 12:10:56,137 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 11 [2022-12-13 12:10:56,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:56,137 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2022-12-13 12:10:56,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,138 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2022-12-13 12:10:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:10:56,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:56,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:56,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:10:56,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 12:10:56,340 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:56,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1426334450, now seen corresponding path program 1 times [2022-12-13 12:10:56,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:56,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791293721] [2022-12-13 12:10:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:56,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:56,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:56,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791293721] [2022-12-13 12:10:56,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791293721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:56,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:56,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:10:56,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240215671] [2022-12-13 12:10:56,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:56,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:10:56,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:56,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:10:56,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:10:56,492 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:56,538 INFO L93 Difference]: Finished difference Result 91 states and 122 transitions. [2022-12-13 12:10:56,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:10:56,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-12-13 12:10:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:56,539 INFO L225 Difference]: With dead ends: 91 [2022-12-13 12:10:56,539 INFO L226 Difference]: Without dead ends: 88 [2022-12-13 12:10:56,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:10:56,540 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:56,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 33 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:56,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-13 12:10:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-12-13 12:10:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 87 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2022-12-13 12:10:56,550 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 11 [2022-12-13 12:10:56,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:56,550 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2022-12-13 12:10:56,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2022-12-13 12:10:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:10:56,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:56,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:56,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:10:56,551 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:56,551 INFO L85 PathProgramCache]: Analyzing trace with hash 930844933, now seen corresponding path program 1 times [2022-12-13 12:10:56,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:56,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176321448] [2022-12-13 12:10:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:56,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:56,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:56,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176321448] [2022-12-13 12:10:56,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176321448] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:56,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105862171] [2022-12-13 12:10:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:56,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:56,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:56,596 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:56,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:10:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:56,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:10:56,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:56,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:10:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:56,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105862171] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:10:56,713 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:10:56,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-12-13 12:10:56,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476220594] [2022-12-13 12:10:56,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:10:56,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 12:10:56,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:56,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 12:10:56,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:10:56,714 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:56,846 INFO L93 Difference]: Finished difference Result 131 states and 171 transitions. [2022-12-13 12:10:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 12:10:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 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 12 [2022-12-13 12:10:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:56,847 INFO L225 Difference]: With dead ends: 131 [2022-12-13 12:10:56,848 INFO L226 Difference]: Without dead ends: 122 [2022-12-13 12:10:56,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:10:56,849 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:56,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 52 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:10:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-13 12:10:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2022-12-13 12:10:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.42) internal successors, (142), 103 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2022-12-13 12:10:56,860 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 12 [2022-12-13 12:10:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:56,860 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2022-12-13 12:10:56,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:56,860 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2022-12-13 12:10:56,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:10:56,861 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:56,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:56,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:10:57,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:57,062 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:57,062 INFO L85 PathProgramCache]: Analyzing trace with hash 930846471, now seen corresponding path program 1 times [2022-12-13 12:10:57,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:57,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132991389] [2022-12-13 12:10:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:57,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:57,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:57,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132991389] [2022-12-13 12:10:57,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132991389] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:57,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322211106] [2022-12-13 12:10:57,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:57,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:57,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:57,099 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:57,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 12:10:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:57,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:10:57,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:57,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:10:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:57,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322211106] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:10:57,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:10:57,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 12:10:57,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014927960] [2022-12-13 12:10:57,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:10:57,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:10:57,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:57,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:10:57,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:10:57,172 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:57,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:57,244 INFO L93 Difference]: Finished difference Result 271 states and 375 transitions. [2022-12-13 12:10:57,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:10:57,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 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 12 [2022-12-13 12:10:57,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:57,246 INFO L225 Difference]: With dead ends: 271 [2022-12-13 12:10:57,246 INFO L226 Difference]: Without dead ends: 270 [2022-12-13 12:10:57,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:10:57,248 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 79 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:57,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 87 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:57,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-12-13 12:10:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 251. [2022-12-13 12:10:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 247 states have (on average 1.4008097165991902) internal successors, (346), 250 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:57,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 346 transitions. [2022-12-13 12:10:57,263 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 346 transitions. Word has length 12 [2022-12-13 12:10:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:57,263 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 346 transitions. [2022-12-13 12:10:57,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 346 transitions. [2022-12-13 12:10:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 12:10:57,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:57,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:57,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 12:10:57,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:57,465 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:57,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:57,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1772254812, now seen corresponding path program 1 times [2022-12-13 12:10:57,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:57,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489044894] [2022-12-13 12:10:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:57,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:57,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:57,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:57,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489044894] [2022-12-13 12:10:57,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489044894] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:57,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467824658] [2022-12-13 12:10:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:57,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:57,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:57,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:57,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 12:10:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:57,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:10:57,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:57,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:57,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:10:57,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467824658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:57,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:10:57,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-12-13 12:10:57,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831033790] [2022-12-13 12:10:57,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:57,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:10:57,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:57,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:10:57,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:10:57,623 INFO L87 Difference]: Start difference. First operand 251 states and 346 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:57,745 INFO L93 Difference]: Finished difference Result 410 states and 566 transitions. [2022-12-13 12:10:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:10:57,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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 14 [2022-12-13 12:10:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:57,749 INFO L225 Difference]: With dead ends: 410 [2022-12-13 12:10:57,749 INFO L226 Difference]: Without dead ends: 409 [2022-12-13 12:10:57,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:10:57,750 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 42 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:57,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 40 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:10:57,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-12-13 12:10:57,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2022-12-13 12:10:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 397 states have (on average 1.4130982367758187) internal successors, (561), 400 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 561 transitions. [2022-12-13 12:10:57,781 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 561 transitions. Word has length 14 [2022-12-13 12:10:57,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:57,781 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 561 transitions. [2022-12-13 12:10:57,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:57,781 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 561 transitions. [2022-12-13 12:10:57,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 12:10:57,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:57,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:57,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 12:10:57,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:57,983 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:57,983 INFO L85 PathProgramCache]: Analyzing trace with hash 517534035, now seen corresponding path program 1 times [2022-12-13 12:10:57,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:57,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482410177] [2022-12-13 12:10:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:57,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:58,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:58,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482410177] [2022-12-13 12:10:58,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482410177] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:58,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207083040] [2022-12-13 12:10:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:58,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:58,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:58,032 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:58,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 12:10:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:58,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:10:58,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:58,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:10:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:58,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207083040] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:10:58,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:10:58,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-12-13 12:10:58,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801564133] [2022-12-13 12:10:58,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:10:58,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 12:10:58,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:58,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 12:10:58,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:10:58,178 INFO L87 Difference]: Start difference. First operand 401 states and 561 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:58,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:58,289 INFO L93 Difference]: Finished difference Result 425 states and 588 transitions. [2022-12-13 12:10:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:10:58,289 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 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 15 [2022-12-13 12:10:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:58,291 INFO L225 Difference]: With dead ends: 425 [2022-12-13 12:10:58,291 INFO L226 Difference]: Without dead ends: 418 [2022-12-13 12:10:58,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-12-13 12:10:58,292 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:58,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 57 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:10:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-12-13 12:10:58,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 410. [2022-12-13 12:10:58,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 406 states have (on average 1.4039408866995073) internal successors, (570), 409 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 570 transitions. [2022-12-13 12:10:58,312 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 570 transitions. Word has length 15 [2022-12-13 12:10:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:58,312 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 570 transitions. [2022-12-13 12:10:58,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 570 transitions. [2022-12-13 12:10:58,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 12:10:58,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:58,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:58,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 12:10:58,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:58,514 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:58,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1061225824, now seen corresponding path program 1 times [2022-12-13 12:10:58,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150009701] [2022-12-13 12:10:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:58,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:58,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:58,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150009701] [2022-12-13 12:10:58,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150009701] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:58,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292263266] [2022-12-13 12:10:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:58,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:58,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:58,630 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:58,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 12:10:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:58,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:10:58,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:58,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:58,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:10:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:58,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292263266] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:10:58,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:10:58,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-12-13 12:10:58,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594372219] [2022-12-13 12:10:58,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:10:58,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 12:10:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 12:10:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:10:58,792 INFO L87 Difference]: Start difference. First operand 410 states and 570 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:59,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:59,002 INFO L93 Difference]: Finished difference Result 499 states and 683 transitions. [2022-12-13 12:10:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 12:10:59,002 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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 16 [2022-12-13 12:10:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:59,003 INFO L225 Difference]: With dead ends: 499 [2022-12-13 12:10:59,004 INFO L226 Difference]: Without dead ends: 488 [2022-12-13 12:10:59,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2022-12-13 12:10:59,005 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 79 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:59,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 56 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:10:59,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-12-13 12:10:59,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 439. [2022-12-13 12:10:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 435 states have (on average 1.3977011494252873) internal successors, (608), 438 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 608 transitions. [2022-12-13 12:10:59,026 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 608 transitions. Word has length 16 [2022-12-13 12:10:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:59,027 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 608 transitions. [2022-12-13 12:10:59,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 608 transitions. [2022-12-13 12:10:59,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 12:10:59,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:59,027 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:59,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 12:10:59,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 12:10:59,228 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1239822903, now seen corresponding path program 1 times [2022-12-13 12:10:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:59,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76463106] [2022-12-13 12:10:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:59,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:59,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76463106] [2022-12-13 12:10:59,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76463106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:59,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:59,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:10:59,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71382417] [2022-12-13 12:10:59,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:59,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:10:59,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:59,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:10:59,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:10:59,249 INFO L87 Difference]: Start difference. First operand 439 states and 608 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:59,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:10:59,299 INFO L93 Difference]: Finished difference Result 739 states and 1022 transitions. [2022-12-13 12:10:59,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:10:59,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-12-13 12:10:59,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:10:59,303 INFO L225 Difference]: With dead ends: 739 [2022-12-13 12:10:59,304 INFO L226 Difference]: Without dead ends: 401 [2022-12-13 12:10:59,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:10:59,306 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:10:59,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:10:59,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-12-13 12:10:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 302. [2022-12-13 12:10:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 299 states have (on average 1.3444816053511706) internal successors, (402), 301 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 402 transitions. [2022-12-13 12:10:59,326 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 402 transitions. Word has length 17 [2022-12-13 12:10:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:10:59,326 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 402 transitions. [2022-12-13 12:10:59,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 402 transitions. [2022-12-13 12:10:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 12:10:59,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:10:59,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:59,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 12:10:59,327 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:10:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash 642651187, now seen corresponding path program 1 times [2022-12-13 12:10:59,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:59,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391554517] [2022-12-13 12:10:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:59,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:59,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391554517] [2022-12-13 12:10:59,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391554517] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:10:59,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227827733] [2022-12-13 12:10:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:59,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:10:59,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:10:59,424 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:10:59,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 12:10:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:59,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 12:10:59,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:10:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:59,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:10:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:59,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227827733] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:10:59,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:10:59,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-12-13 12:10:59,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946443019] [2022-12-13 12:10:59,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:10:59,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 12:10:59,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 12:10:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2022-12-13 12:10:59,699 INFO L87 Difference]: Start difference. First operand 302 states and 402 transitions. Second operand has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:00,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:00,111 INFO L93 Difference]: Finished difference Result 521 states and 679 transitions. [2022-12-13 12:11:00,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 12:11:00,112 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-13 12:11:00,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:00,113 INFO L225 Difference]: With dead ends: 521 [2022-12-13 12:11:00,113 INFO L226 Difference]: Without dead ends: 504 [2022-12-13 12:11:00,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=626, Invalid=2130, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 12:11:00,114 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 243 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:00,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 54 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:11:00,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-12-13 12:11:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 326. [2022-12-13 12:11:00,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 323 states have (on average 1.3715170278637772) internal successors, (443), 325 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 443 transitions. [2022-12-13 12:11:00,131 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 443 transitions. Word has length 23 [2022-12-13 12:11:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:00,131 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 443 transitions. [2022-12-13 12:11:00,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 443 transitions. [2022-12-13 12:11:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 12:11:00,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:00,132 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:00,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 12:11:00,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 12:11:00,332 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1872170922, now seen corresponding path program 2 times [2022-12-13 12:11:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16914931] [2022-12-13 12:11:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:00,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:00,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16914931] [2022-12-13 12:11:00,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16914931] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:00,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961932658] [2022-12-13 12:11:00,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:00,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:00,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:00,430 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:00,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 12:11:00,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:11:00,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:00,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 12:11:00,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:00,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:00,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961932658] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:00,660 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:00,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-12-13 12:11:00,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054760145] [2022-12-13 12:11:00,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:00,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 12:11:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:00,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 12:11:00,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-12-13 12:11:00,662 INFO L87 Difference]: Start difference. First operand 326 states and 443 transitions. Second operand has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:01,010 INFO L93 Difference]: Finished difference Result 443 states and 578 transitions. [2022-12-13 12:11:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 12:11:01,011 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 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 24 [2022-12-13 12:11:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:01,012 INFO L225 Difference]: With dead ends: 443 [2022-12-13 12:11:01,012 INFO L226 Difference]: Without dead ends: 428 [2022-12-13 12:11:01,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 12:11:01,013 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 198 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:01,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 75 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:11:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-12-13 12:11:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 409. [2022-12-13 12:11:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 406 states have (on average 1.3374384236453203) internal successors, (543), 408 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 543 transitions. [2022-12-13 12:11:01,053 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 543 transitions. Word has length 24 [2022-12-13 12:11:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:01,053 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 543 transitions. [2022-12-13 12:11:01,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 543 transitions. [2022-12-13 12:11:01,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 12:11:01,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:01,054 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:01,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 12:11:01,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:01,254 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:01,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:01,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1872169384, now seen corresponding path program 2 times [2022-12-13 12:11:01,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:01,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125224420] [2022-12-13 12:11:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:01,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:01,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125224420] [2022-12-13 12:11:01,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125224420] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993119626] [2022-12-13 12:11:01,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:01,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:01,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:01,351 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:01,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 12:11:01,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:11:01,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:01,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:11:01,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 12:11:01,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 12:11:01,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993119626] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:01,438 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:01,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2022-12-13 12:11:01,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080811150] [2022-12-13 12:11:01,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:01,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 12:11:01,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:01,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 12:11:01,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:11:01,439 INFO L87 Difference]: Start difference. First operand 409 states and 543 transitions. Second operand has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:01,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:01,595 INFO L93 Difference]: Finished difference Result 481 states and 633 transitions. [2022-12-13 12:11:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:11:01,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 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 24 [2022-12-13 12:11:01,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:01,597 INFO L225 Difference]: With dead ends: 481 [2022-12-13 12:11:01,597 INFO L226 Difference]: Without dead ends: 480 [2022-12-13 12:11:01,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2022-12-13 12:11:01,598 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 151 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:01,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 95 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:11:01,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-12-13 12:11:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 256. [2022-12-13 12:11:01,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 254 states have (on average 1.2992125984251968) internal successors, (330), 255 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 330 transitions. [2022-12-13 12:11:01,632 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 330 transitions. Word has length 24 [2022-12-13 12:11:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:01,632 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 330 transitions. [2022-12-13 12:11:01,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 330 transitions. [2022-12-13 12:11:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 12:11:01,633 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:01,634 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:01,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 12:11:01,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:01,834 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:01,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1666643066, now seen corresponding path program 1 times [2022-12-13 12:11:01,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:01,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637189548] [2022-12-13 12:11:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:01,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637189548] [2022-12-13 12:11:01,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637189548] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440895720] [2022-12-13 12:11:01,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:01,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:01,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:01,947 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:01,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 12:11:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:01,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 12:11:01,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:02,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:02,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440895720] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:02,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:02,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-12-13 12:11:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887259570] [2022-12-13 12:11:02,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:02,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-13 12:11:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-13 12:11:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 12:11:02,242 INFO L87 Difference]: Start difference. First operand 256 states and 330 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:02,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:02,693 INFO L93 Difference]: Finished difference Result 570 states and 713 transitions. [2022-12-13 12:11:02,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-13 12:11:02,694 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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 27 [2022-12-13 12:11:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:02,695 INFO L225 Difference]: With dead ends: 570 [2022-12-13 12:11:02,695 INFO L226 Difference]: Without dead ends: 553 [2022-12-13 12:11:02,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=899, Invalid=2761, Unknown=0, NotChecked=0, Total=3660 [2022-12-13 12:11:02,696 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 260 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:02,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 75 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:11:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-13 12:11:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 318. [2022-12-13 12:11:02,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 316 states have (on average 1.3132911392405062) internal successors, (415), 317 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2022-12-13 12:11:02,727 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 27 [2022-12-13 12:11:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:02,727 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2022-12-13 12:11:02,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:02,727 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2022-12-13 12:11:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 12:11:02,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:02,728 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:02,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 12:11:02,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 12:11:02,928 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:02,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:02,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1481942866, now seen corresponding path program 1 times [2022-12-13 12:11:02,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:02,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140773818] [2022-12-13 12:11:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:02,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:03,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:03,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140773818] [2022-12-13 12:11:03,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140773818] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:03,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856541849] [2022-12-13 12:11:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:03,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:03,026 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:03,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 12:11:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:03,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 12:11:03,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:03,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:03,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856541849] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:03,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:03,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-12-13 12:11:03,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878209869] [2022-12-13 12:11:03,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:03,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 12:11:03,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 12:11:03,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-12-13 12:11:03,177 INFO L87 Difference]: Start difference. First operand 318 states and 415 transitions. Second operand has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:03,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:03,431 INFO L93 Difference]: Finished difference Result 650 states and 850 transitions. [2022-12-13 12:11:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 12:11:03,431 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 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 28 [2022-12-13 12:11:03,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:03,433 INFO L225 Difference]: With dead ends: 650 [2022-12-13 12:11:03,433 INFO L226 Difference]: Without dead ends: 649 [2022-12-13 12:11:03,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-12-13 12:11:03,434 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 223 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:03,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 84 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:11:03,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-12-13 12:11:03,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 358. [2022-12-13 12:11:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 356 states have (on average 1.3286516853932584) internal successors, (473), 357 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 473 transitions. [2022-12-13 12:11:03,471 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 473 transitions. Word has length 28 [2022-12-13 12:11:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:03,472 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 473 transitions. [2022-12-13 12:11:03,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 473 transitions. [2022-12-13 12:11:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 12:11:03,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:03,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:03,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 12:11:03,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:03,674 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:03,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1953358763, now seen corresponding path program 1 times [2022-12-13 12:11:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:03,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637623577] [2022-12-13 12:11:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:03,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:03,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637623577] [2022-12-13 12:11:03,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637623577] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:03,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425754343] [2022-12-13 12:11:03,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:03,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:03,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:03,858 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:03,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 12:11:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:03,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 12:11:03,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:04,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:04,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425754343] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:04,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:04,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-12-13 12:11:04,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478274860] [2022-12-13 12:11:04,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:04,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 12:11:04,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:04,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 12:11:04,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 12:11:04,211 INFO L87 Difference]: Start difference. First operand 358 states and 473 transitions. Second operand has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:05,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:05,089 INFO L93 Difference]: Finished difference Result 972 states and 1228 transitions. [2022-12-13 12:11:05,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-12-13 12:11:05,089 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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 33 [2022-12-13 12:11:05,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:05,091 INFO L225 Difference]: With dead ends: 972 [2022-12-13 12:11:05,091 INFO L226 Difference]: Without dead ends: 951 [2022-12-13 12:11:05,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2714 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1750, Invalid=6440, Unknown=0, NotChecked=0, Total=8190 [2022-12-13 12:11:05,093 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 331 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:05,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 92 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:11:05,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-12-13 12:11:05,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 503. [2022-12-13 12:11:05,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 501 states have (on average 1.3313373253493015) internal successors, (667), 502 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:05,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 667 transitions. [2022-12-13 12:11:05,177 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 667 transitions. Word has length 33 [2022-12-13 12:11:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:05,177 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 667 transitions. [2022-12-13 12:11:05,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 667 transitions. [2022-12-13 12:11:05,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 12:11:05,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:05,178 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:05,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 12:11:05,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:05,379 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:05,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1391952262, now seen corresponding path program 2 times [2022-12-13 12:11:05,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:05,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033242150] [2022-12-13 12:11:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:05,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:05,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:05,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033242150] [2022-12-13 12:11:05,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033242150] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:05,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167983317] [2022-12-13 12:11:05,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:05,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:05,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:05,560 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:05,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 12:11:05,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:11:05,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:05,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 12:11:05,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:05,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:06,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167983317] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:06,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:06,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-12-13 12:11:06,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530537976] [2022-12-13 12:11:06,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:06,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 12:11:06,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:06,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 12:11:06,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1730, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 12:11:06,023 INFO L87 Difference]: Start difference. First operand 503 states and 667 transitions. Second operand has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:07,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:07,215 INFO L93 Difference]: Finished difference Result 1479 states and 1887 transitions. [2022-12-13 12:11:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-12-13 12:11:07,216 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 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 39 [2022-12-13 12:11:07,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:07,221 INFO L225 Difference]: With dead ends: 1479 [2022-12-13 12:11:07,221 INFO L226 Difference]: Without dead ends: 1446 [2022-12-13 12:11:07,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3092 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1979, Invalid=7141, Unknown=0, NotChecked=0, Total=9120 [2022-12-13 12:11:07,222 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 373 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:07,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 97 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:11:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-12-13 12:11:07,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 687. [2022-12-13 12:11:07,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 685 states have (on average 1.3372262773722627) internal successors, (916), 686 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 916 transitions. [2022-12-13 12:11:07,318 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 916 transitions. Word has length 39 [2022-12-13 12:11:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:07,318 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 916 transitions. [2022-12-13 12:11:07,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:07,319 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 916 transitions. [2022-12-13 12:11:07,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 12:11:07,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:07,319 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:07,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 12:11:07,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-13 12:11:07,521 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:07,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:07,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1159060442, now seen corresponding path program 3 times [2022-12-13 12:11:07,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:07,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743564523] [2022-12-13 12:11:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:07,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:07,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743564523] [2022-12-13 12:11:07,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743564523] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133799571] [2022-12-13 12:11:07,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:11:07,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:07,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:07,731 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:07,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 12:11:07,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 12:11:07,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:07,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 12:11:07,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-13 12:11:07,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:11:07,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133799571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:07,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:11:07,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [20] total 22 [2022-12-13 12:11:07,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874107988] [2022-12-13 12:11:07,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:07,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:11:07,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:07,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:11:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-12-13 12:11:07,780 INFO L87 Difference]: Start difference. First operand 687 states and 916 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:07,908 INFO L93 Difference]: Finished difference Result 1019 states and 1346 transitions. [2022-12-13 12:11:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:11:07,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 45 [2022-12-13 12:11:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:07,910 INFO L225 Difference]: With dead ends: 1019 [2022-12-13 12:11:07,910 INFO L226 Difference]: Without dead ends: 489 [2022-12-13 12:11:07,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-12-13 12:11:07,912 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:07,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:11:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-12-13 12:11:08,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 467. [2022-12-13 12:11:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.253763440860215) internal successors, (583), 466 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 583 transitions. [2022-12-13 12:11:08,030 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 583 transitions. Word has length 45 [2022-12-13 12:11:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:08,030 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 583 transitions. [2022-12-13 12:11:08,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 583 transitions. [2022-12-13 12:11:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 12:11:08,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:08,032 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:08,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 12:11:08,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 12:11:08,233 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 526963803, now seen corresponding path program 1 times [2022-12-13 12:11:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:08,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868456607] [2022-12-13 12:11:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:08,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:08,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868456607] [2022-12-13 12:11:08,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868456607] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:08,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577426974] [2022-12-13 12:11:08,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:08,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:08,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:08,547 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:08,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 12:11:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:08,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 12:11:08,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:08,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:09,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577426974] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:09,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:09,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-12-13 12:11:09,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550479077] [2022-12-13 12:11:09,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:09,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-12-13 12:11:09,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:09,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-12-13 12:11:09,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2022-12-13 12:11:09,231 INFO L87 Difference]: Start difference. First operand 467 states and 583 transitions. Second operand has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:10,900 INFO L93 Difference]: Finished difference Result 1349 states and 1580 transitions. [2022-12-13 12:11:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-12-13 12:11:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 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 46 [2022-12-13 12:11:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:10,905 INFO L225 Difference]: With dead ends: 1349 [2022-12-13 12:11:10,905 INFO L226 Difference]: Without dead ends: 1326 [2022-12-13 12:11:10,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4393 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2935, Invalid=9947, Unknown=0, NotChecked=0, Total=12882 [2022-12-13 12:11:10,907 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 534 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:10,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 113 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:11:10,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-12-13 12:11:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 690. [2022-12-13 12:11:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 688 states have (on average 1.251453488372093) internal successors, (861), 689 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 861 transitions. [2022-12-13 12:11:11,067 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 861 transitions. Word has length 46 [2022-12-13 12:11:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:11,067 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 861 transitions. [2022-12-13 12:11:11,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 861 transitions. [2022-12-13 12:11:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 12:11:11,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:11,068 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:11,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 12:11:11,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 12:11:11,269 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:11,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:11,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1232536089, now seen corresponding path program 2 times [2022-12-13 12:11:11,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:11,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227448665] [2022-12-13 12:11:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:11,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:11,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:11,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227448665] [2022-12-13 12:11:11,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227448665] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:11,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715606109] [2022-12-13 12:11:11,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:11,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:11,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:11,464 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:11,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 12:11:11,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:11:11,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:11,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 12:11:11,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:11,784 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:11,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:12,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715606109] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:12,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:12,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-12-13 12:11:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326429951] [2022-12-13 12:11:12,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:12,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-12-13 12:11:12,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:12,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-12-13 12:11:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2022-12-13 12:11:12,089 INFO L87 Difference]: Start difference. First operand 690 states and 861 transitions. Second operand has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:14,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:14,081 INFO L93 Difference]: Finished difference Result 1987 states and 2414 transitions. [2022-12-13 12:11:14,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-12-13 12:11:14,081 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 states have internal predecessors, (142), 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 48 [2022-12-13 12:11:14,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:14,084 INFO L225 Difference]: With dead ends: 1987 [2022-12-13 12:11:14,084 INFO L226 Difference]: Without dead ends: 1958 [2022-12-13 12:11:14,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6253 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=3749, Invalid=13807, Unknown=0, NotChecked=0, Total=17556 [2022-12-13 12:11:14,087 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 608 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:14,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 103 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:11:14,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-12-13 12:11:14,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 865. [2022-12-13 12:11:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.2641946697566628) internal successors, (1091), 864 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:14,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1091 transitions. [2022-12-13 12:11:14,273 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1091 transitions. Word has length 48 [2022-12-13 12:11:14,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:14,273 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1091 transitions. [2022-12-13 12:11:14,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:14,273 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1091 transitions. [2022-12-13 12:11:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 12:11:14,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:14,274 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:14,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 12:11:14,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 12:11:14,475 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:14,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:14,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2064850028, now seen corresponding path program 3 times [2022-12-13 12:11:14,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:14,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931737274] [2022-12-13 12:11:14,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:14,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:14,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:14,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931737274] [2022-12-13 12:11:14,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931737274] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:14,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594716858] [2022-12-13 12:11:14,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:11:14,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:14,802 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:14,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 12:11:14,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 12:11:14,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:14,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 12:11:14,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 14 proven. 58 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 12:11:14,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 12:11:15,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594716858] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:15,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:15,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 12] total 48 [2022-12-13 12:11:15,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118272700] [2022-12-13 12:11:15,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:15,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-13 12:11:15,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-13 12:11:15,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1989, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 12:11:15,360 INFO L87 Difference]: Start difference. First operand 865 states and 1091 transitions. Second operand has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:18,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:18,336 INFO L93 Difference]: Finished difference Result 1931 states and 2339 transitions. [2022-12-13 12:11:18,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-12-13 12:11:18,336 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-12-13 12:11:18,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:18,340 INFO L225 Difference]: With dead ends: 1931 [2022-12-13 12:11:18,340 INFO L226 Difference]: Without dead ends: 795 [2022-12-13 12:11:18,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6474 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2415, Invalid=20235, Unknown=0, NotChecked=0, Total=22650 [2022-12-13 12:11:18,344 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 927 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:18,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 408 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 12:11:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-12-13 12:11:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 548. [2022-12-13 12:11:18,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 546 states have (on average 1.1465201465201464) internal successors, (626), 547 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 626 transitions. [2022-12-13 12:11:18,477 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 626 transitions. Word has length 58 [2022-12-13 12:11:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:18,477 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 626 transitions. [2022-12-13 12:11:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 626 transitions. [2022-12-13 12:11:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 12:11:18,481 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:18,481 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:18,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 12:11:18,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:18,682 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:18,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2047235643, now seen corresponding path program 4 times [2022-12-13 12:11:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:18,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67250760] [2022-12-13 12:11:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:18,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:19,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:19,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67250760] [2022-12-13 12:11:19,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67250760] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:19,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141997393] [2022-12-13 12:11:19,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 12:11:19,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:19,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:19,061 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:19,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 12:11:19,095 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 12:11:19,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:19,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 12:11:19,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:19,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:20,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141997393] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:20,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:20,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2022-12-13 12:11:20,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665535744] [2022-12-13 12:11:20,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:20,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-12-13 12:11:20,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-12-13 12:11:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1276, Invalid=5530, Unknown=0, NotChecked=0, Total=6806 [2022-12-13 12:11:20,015 INFO L87 Difference]: Start difference. First operand 548 states and 626 transitions. Second operand has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:21,622 INFO L93 Difference]: Finished difference Result 1098 states and 1231 transitions. [2022-12-13 12:11:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-12-13 12:11:21,622 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 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 64 [2022-12-13 12:11:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:21,624 INFO L225 Difference]: With dead ends: 1098 [2022-12-13 12:11:21,624 INFO L226 Difference]: Without dead ends: 1039 [2022-12-13 12:11:21,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7520 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=4411, Invalid=16181, Unknown=0, NotChecked=0, Total=20592 [2022-12-13 12:11:21,625 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 572 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:21,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 132 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:11:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-12-13 12:11:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 683. [2022-12-13 12:11:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 681 states have (on average 1.133627019089574) internal successors, (772), 682 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 772 transitions. [2022-12-13 12:11:21,921 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 772 transitions. Word has length 64 [2022-12-13 12:11:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:21,921 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 772 transitions. [2022-12-13 12:11:21,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 772 transitions. [2022-12-13 12:11:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 12:11:21,923 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:21,923 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 6, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-12-13 12:11:21,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-12-13 12:11:22,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 12:11:22,125 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:22,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash 62712667, now seen corresponding path program 2 times [2022-12-13 12:11:22,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:22,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570824477] [2022-12-13 12:11:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:22,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:22,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570824477] [2022-12-13 12:11:22,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570824477] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:22,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255398723] [2022-12-13 12:11:22,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:22,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:22,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:22,350 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:22,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 12:11:22,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:11:22,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:22,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:11:22,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-12-13 12:11:22,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-12-13 12:11:22,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255398723] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:22,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:22,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2022-12-13 12:11:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398654423] [2022-12-13 12:11:22,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 12:11:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 12:11:22,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-12-13 12:11:22,504 INFO L87 Difference]: Start difference. First operand 683 states and 772 transitions. Second operand has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:23,254 INFO L93 Difference]: Finished difference Result 1332 states and 1471 transitions. [2022-12-13 12:11:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 12:11:23,255 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-12-13 12:11:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:23,261 INFO L225 Difference]: With dead ends: 1332 [2022-12-13 12:11:23,261 INFO L226 Difference]: Without dead ends: 1331 [2022-12-13 12:11:23,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 12:11:23,263 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 178 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:23,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 115 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:11:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-12-13 12:11:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 557. [2022-12-13 12:11:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 1.1097122302158273) internal successors, (617), 556 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 617 transitions. [2022-12-13 12:11:23,450 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 617 transitions. Word has length 70 [2022-12-13 12:11:23,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:23,450 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 617 transitions. [2022-12-13 12:11:23,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 617 transitions. [2022-12-13 12:11:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 12:11:23,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:23,451 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-12-13 12:11:23,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-12-13 12:11:23,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:23,651 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2088131041, now seen corresponding path program 1 times [2022-12-13 12:11:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:23,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274238316] [2022-12-13 12:11:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:24,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:24,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274238316] [2022-12-13 12:11:24,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274238316] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:24,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70929598] [2022-12-13 12:11:24,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:24,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:24,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:24,094 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:24,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 12:11:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:24,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 12:11:24,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:24,733 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:24,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:25,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70929598] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:25,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:25,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 100 [2022-12-13 12:11:25,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424271239] [2022-12-13 12:11:25,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:25,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-12-13 12:11:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:25,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-12-13 12:11:25,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2034, Invalid=8066, Unknown=0, NotChecked=0, Total=10100 [2022-12-13 12:11:25,358 INFO L87 Difference]: Start difference. First operand 557 states and 617 transitions. Second operand has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:27,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:27,707 INFO L93 Difference]: Finished difference Result 1049 states and 1193 transitions. [2022-12-13 12:11:27,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-12-13 12:11:27,707 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 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 77 [2022-12-13 12:11:27,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:27,709 INFO L225 Difference]: With dead ends: 1049 [2022-12-13 12:11:27,709 INFO L226 Difference]: Without dead ends: 978 [2022-12-13 12:11:27,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11490 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=6278, Invalid=25228, Unknown=0, NotChecked=0, Total=31506 [2022-12-13 12:11:27,710 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 757 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:27,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 147 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 12:11:27,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-12-13 12:11:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 648. [2022-12-13 12:11:27,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.1251931993817619) internal successors, (728), 647 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:27,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 728 transitions. [2022-12-13 12:11:27,890 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 728 transitions. Word has length 77 [2022-12-13 12:11:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:27,891 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 728 transitions. [2022-12-13 12:11:27,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:27,891 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 728 transitions. [2022-12-13 12:11:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 12:11:27,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:27,892 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:27,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 12:11:28,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:28,093 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:28,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:28,093 INFO L85 PathProgramCache]: Analyzing trace with hash -617037781, now seen corresponding path program 2 times [2022-12-13 12:11:28,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:28,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744489687] [2022-12-13 12:11:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:28,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:28,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:28,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744489687] [2022-12-13 12:11:28,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744489687] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:28,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556608790] [2022-12-13 12:11:28,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:28,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:28,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:28,667 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:28,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 12:11:28,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:11:28,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:28,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-13 12:11:28,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:29,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:30,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556608790] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:30,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:30,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-12-13 12:11:30,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337577184] [2022-12-13 12:11:30,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:30,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-12-13 12:11:30,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-12-13 12:11:30,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3096, Invalid=10946, Unknown=0, NotChecked=0, Total=14042 [2022-12-13 12:11:30,468 INFO L87 Difference]: Start difference. First operand 648 states and 728 transitions. Second operand has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:31,759 INFO L93 Difference]: Finished difference Result 946 states and 1045 transitions. [2022-12-13 12:11:31,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-12-13 12:11:31,760 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 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 84 [2022-12-13 12:11:31,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:31,764 INFO L225 Difference]: With dead ends: 946 [2022-12-13 12:11:31,764 INFO L226 Difference]: Without dead ends: 907 [2022-12-13 12:11:31,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9966 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=5767, Invalid=19039, Unknown=0, NotChecked=0, Total=24806 [2022-12-13 12:11:31,765 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 458 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:31,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 117 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:11:31,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-12-13 12:11:31,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 731. [2022-12-13 12:11:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 1.110958904109589) internal successors, (811), 730 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 811 transitions. [2022-12-13 12:11:31,987 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 811 transitions. Word has length 84 [2022-12-13 12:11:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:31,987 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 811 transitions. [2022-12-13 12:11:31,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 811 transitions. [2022-12-13 12:11:31,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 12:11:31,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:31,988 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:31,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 12:11:32,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:32,189 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:32,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1323124214, now seen corresponding path program 5 times [2022-12-13 12:11:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:32,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713221641] [2022-12-13 12:11:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:32,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:32,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713221641] [2022-12-13 12:11:32,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713221641] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:32,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947567479] [2022-12-13 12:11:32,688 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 12:11:32,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:32,689 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:32,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 12:11:32,742 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-12-13 12:11:32,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:32,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-13 12:11:32,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:33,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:34,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947567479] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:34,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:34,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2022-12-13 12:11:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946381346] [2022-12-13 12:11:34,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:34,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-12-13 12:11:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:34,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-12-13 12:11:34,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=10346, Unknown=0, NotChecked=0, Total=12656 [2022-12-13 12:11:34,415 INFO L87 Difference]: Start difference. First operand 731 states and 811 transitions. Second operand has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:38,018 INFO L93 Difference]: Finished difference Result 1757 states and 1933 transitions. [2022-12-13 12:11:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 12:11:38,018 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 states have internal predecessors, (256), 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 86 [2022-12-13 12:11:38,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:38,023 INFO L225 Difference]: With dead ends: 1757 [2022-12-13 12:11:38,023 INFO L226 Difference]: Without dead ends: 1676 [2022-12-13 12:11:38,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15729 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=8856, Invalid=33374, Unknown=0, NotChecked=0, Total=42230 [2022-12-13 12:11:38,025 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1092 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:38,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 152 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 12:11:38,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-12-13 12:11:38,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 957. [2022-12-13 12:11:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 1.1171548117154813) internal successors, (1068), 956 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1068 transitions. [2022-12-13 12:11:38,336 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1068 transitions. Word has length 86 [2022-12-13 12:11:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:38,336 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1068 transitions. [2022-12-13 12:11:38,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1068 transitions. [2022-12-13 12:11:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-13 12:11:38,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:38,337 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2022-12-13 12:11:38,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-12-13 12:11:38,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-12-13 12:11:38,539 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1698227726, now seen corresponding path program 2 times [2022-12-13 12:11:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:38,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851885320] [2022-12-13 12:11:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:39,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:39,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851885320] [2022-12-13 12:11:39,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851885320] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:39,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318746112] [2022-12-13 12:11:39,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:11:39,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:39,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:39,192 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:39,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 12:11:39,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:11:39,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:39,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-13 12:11:39,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:39,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:40,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318746112] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:40,925 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:40,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-12-13 12:11:40,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62828545] [2022-12-13 12:11:40,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-12-13 12:11:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-12-13 12:11:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2680, Invalid=11362, Unknown=0, NotChecked=0, Total=14042 [2022-12-13 12:11:40,926 INFO L87 Difference]: Start difference. First operand 957 states and 1068 transitions. Second operand has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:45,374 INFO L93 Difference]: Finished difference Result 2591 states and 2938 transitions. [2022-12-13 12:11:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 12:11:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 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 93 [2022-12-13 12:11:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:45,386 INFO L225 Difference]: With dead ends: 2591 [2022-12-13 12:11:45,386 INFO L226 Difference]: Without dead ends: 2474 [2022-12-13 12:11:45,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23291 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=11989, Invalid=48281, Unknown=0, NotChecked=0, Total=60270 [2022-12-13 12:11:45,388 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1073 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:45,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 154 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 12:11:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-12-13 12:11:45,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1226. [2022-12-13 12:11:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 1.129795918367347) internal successors, (1384), 1225 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:45,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1384 transitions. [2022-12-13 12:11:45,745 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1384 transitions. Word has length 93 [2022-12-13 12:11:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:45,745 INFO L495 AbstractCegarLoop]: Abstraction has 1226 states and 1384 transitions. [2022-12-13 12:11:45,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1384 transitions. [2022-12-13 12:11:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-13 12:11:45,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:45,747 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 9, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:45,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-12-13 12:11:45,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 12:11:45,948 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:45,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:45,949 INFO L85 PathProgramCache]: Analyzing trace with hash -887179862, now seen corresponding path program 6 times [2022-12-13 12:11:45,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:45,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443558388] [2022-12-13 12:11:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:45,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:46,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:46,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443558388] [2022-12-13 12:11:46,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443558388] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:46,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92473065] [2022-12-13 12:11:46,884 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 12:11:46,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:46,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:46,884 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:46,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-13 12:11:46,935 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2022-12-13 12:11:46,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:46,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 12:11:46,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:48,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:49,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92473065] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:49,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:49,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 148 [2022-12-13 12:11:49,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842672653] [2022-12-13 12:11:49,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:49,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-12-13 12:11:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:49,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-12-13 12:11:49,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3970, Invalid=18082, Unknown=0, NotChecked=0, Total=22052 [2022-12-13 12:11:49,585 INFO L87 Difference]: Start difference. First operand 1226 states and 1384 transitions. Second operand has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:55,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:55,071 INFO L93 Difference]: Finished difference Result 3368 states and 3727 transitions. [2022-12-13 12:11:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-12-13 12:11:55,072 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-12-13 12:11:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:55,077 INFO L225 Difference]: With dead ends: 3368 [2022-12-13 12:11:55,077 INFO L226 Difference]: Without dead ends: 3267 [2022-12-13 12:11:55,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29906 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=16612, Invalid=62630, Unknown=0, NotChecked=0, Total=79242 [2022-12-13 12:11:55,080 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1289 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:55,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 195 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 12:11:55,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-12-13 12:11:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 1492. [2022-12-13 12:11:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 1.1314553990610328) internal successors, (1687), 1491 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:55,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1687 transitions. [2022-12-13 12:11:55,559 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1687 transitions. Word has length 112 [2022-12-13 12:11:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:55,559 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 1687 transitions. [2022-12-13 12:11:55,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1687 transitions. [2022-12-13 12:11:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 12:11:55,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:55,561 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2022-12-13 12:11:55,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-12-13 12:11:55,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:55,762 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:55,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1622142107, now seen corresponding path program 3 times [2022-12-13 12:11:55,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:55,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914033470] [2022-12-13 12:11:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:55,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:56,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:56,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914033470] [2022-12-13 12:11:56,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914033470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:11:56,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526449189] [2022-12-13 12:11:56,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:11:56,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:56,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:56,744 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:11:56,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-13 12:11:56,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 12:11:56,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:11:56,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 12:11:56,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:11:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 283 proven. 16 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-12-13 12:11:56,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:11:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 283 proven. 16 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-12-13 12:11:56,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526449189] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:11:56,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:11:56,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 6, 6] total 59 [2022-12-13 12:11:56,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357691253] [2022-12-13 12:11:56,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:11:56,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-12-13 12:11:56,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:56,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-12-13 12:11:56,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=2775, Unknown=0, NotChecked=0, Total=3422 [2022-12-13 12:11:56,915 INFO L87 Difference]: Start difference. First operand 1492 states and 1687 transitions. Second operand has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:59,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:11:59,256 INFO L93 Difference]: Finished difference Result 2068 states and 2301 transitions. [2022-12-13 12:11:59,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-13 12:11:59,257 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 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 127 [2022-12-13 12:11:59,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:11:59,258 INFO L225 Difference]: With dead ends: 2068 [2022-12-13 12:11:59,258 INFO L226 Difference]: Without dead ends: 812 [2022-12-13 12:11:59,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3394 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2875, Invalid=12875, Unknown=0, NotChecked=0, Total=15750 [2022-12-13 12:11:59,260 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 444 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:11:59,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 131 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:11:59,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-12-13 12:11:59,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 560. [2022-12-13 12:11:59,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.0500894454382828) internal successors, (587), 559 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:59,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 587 transitions. [2022-12-13 12:11:59,586 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 587 transitions. Word has length 127 [2022-12-13 12:11:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:11:59,586 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 587 transitions. [2022-12-13 12:11:59,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 587 transitions. [2022-12-13 12:11:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 12:11:59,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:11:59,587 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 11, 11, 11, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:59,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-12-13 12:11:59,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:11:59,788 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:11:59,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:59,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1523760293, now seen corresponding path program 7 times [2022-12-13 12:11:59,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:59,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489270008] [2022-12-13 12:11:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:59,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:12:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:01,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:12:01,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489270008] [2022-12-13 12:12:01,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489270008] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:12:01,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498051714] [2022-12-13 12:12:01,204 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 12:12:01,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:12:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:12:01,205 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:12:01,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-12-13 12:12:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:12:01,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-13 12:12:01,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:12:02,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:02,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:12:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:05,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498051714] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:12:05,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:12:05,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2022-12-13 12:12:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835488625] [2022-12-13 12:12:05,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:12:05,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-12-13 12:12:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:12:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-12-13 12:12:05,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6496, Invalid=29794, Unknown=0, NotChecked=0, Total=36290 [2022-12-13 12:12:05,042 INFO L87 Difference]: Start difference. First operand 560 states and 587 transitions. Second operand has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:12:12,323 INFO L93 Difference]: Finished difference Result 1462 states and 1531 transitions. [2022-12-13 12:12:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-12-13 12:12:12,323 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 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 142 [2022-12-13 12:12:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:12:12,330 INFO L225 Difference]: With dead ends: 1462 [2022-12-13 12:12:12,330 INFO L226 Difference]: Without dead ends: 1415 [2022-12-13 12:12:12,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42706 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=23693, Invalid=85537, Unknown=0, NotChecked=0, Total=109230 [2022-12-13 12:12:12,334 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1526 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 12:12:12,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 253 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 12:12:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-12-13 12:12:12,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 650. [2022-12-13 12:12:12,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.0431432973805854) internal successors, (677), 649 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:12,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 677 transitions. [2022-12-13 12:12:12,752 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 677 transitions. Word has length 142 [2022-12-13 12:12:12,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:12:12,752 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 677 transitions. [2022-12-13 12:12:12,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 677 transitions. [2022-12-13 12:12:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 12:12:12,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:12:12,753 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 13, 13, 12, 12, 12, 12, 11, 11, 2, 1, 1, 1, 1, 1] [2022-12-13 12:12:12,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-12-13 12:12:12,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-13 12:12:12,954 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:12:12,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:12:12,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1425838077, now seen corresponding path program 1 times [2022-12-13 12:12:12,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:12:12,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726401483] [2022-12-13 12:12:12,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:12:12,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:12:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:12:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:14,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:12:14,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726401483] [2022-12-13 12:12:14,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726401483] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:12:14,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071429587] [2022-12-13 12:12:14,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:12:14,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:12:14,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:12:14,817 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:12:14,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-12-13 12:12:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:12:14,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 71 conjunts are in the unsatisfiable core [2022-12-13 12:12:14,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:12:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:16,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:12:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:19,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071429587] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:12:19,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:12:19,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 208 [2022-12-13 12:12:19,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621351947] [2022-12-13 12:12:19,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:12:19,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2022-12-13 12:12:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:12:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2022-12-13 12:12:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7758, Invalid=35714, Unknown=0, NotChecked=0, Total=43472 [2022-12-13 12:12:19,255 INFO L87 Difference]: Start difference. First operand 650 states and 677 transitions. Second operand has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:12:27,513 INFO L93 Difference]: Finished difference Result 1496 states and 1589 transitions. [2022-12-13 12:12:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-12-13 12:12:27,513 INFO L78 Accepts]: Start accepts. Automaton has has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 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 169 [2022-12-13 12:12:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:12:27,515 INFO L225 Difference]: With dead ends: 1496 [2022-12-13 12:12:27,515 INFO L226 Difference]: Without dead ends: 1427 [2022-12-13 12:12:27,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58724 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=29075, Invalid=118765, Unknown=0, NotChecked=0, Total=147840 [2022-12-13 12:12:27,521 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1472 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 12:12:27,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 266 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 12:12:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-12-13 12:12:27,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 810. [2022-12-13 12:12:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 1.0605686032138442) internal successors, (858), 809 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 858 transitions. [2022-12-13 12:12:27,961 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 858 transitions. Word has length 169 [2022-12-13 12:12:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:12:27,961 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 858 transitions. [2022-12-13 12:12:27,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 858 transitions. [2022-12-13 12:12:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 12:12:27,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:12:27,962 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 20, 13, 13, 13, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2022-12-13 12:12:27,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-12-13 12:12:28,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 12:12:28,163 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:12:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:12:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash -23699845, now seen corresponding path program 8 times [2022-12-13 12:12:28,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:12:28,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451788647] [2022-12-13 12:12:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:12:28,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:12:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:12:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:30,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:12:30,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451788647] [2022-12-13 12:12:30,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451788647] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:12:30,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592280788] [2022-12-13 12:12:30,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:12:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:12:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:12:30,066 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:12:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-12-13 12:12:30,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:12:30,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:12:30,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 81 conjunts are in the unsatisfiable core [2022-12-13 12:12:30,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:12:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:32,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:12:35,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:35,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592280788] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:12:35,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:12:35,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80, 80] total 238 [2022-12-13 12:12:35,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842527234] [2022-12-13 12:12:35,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:12:35,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 239 states [2022-12-13 12:12:35,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:12:35,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2022-12-13 12:12:35,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10176, Invalid=46706, Unknown=0, NotChecked=0, Total=56882 [2022-12-13 12:12:35,405 INFO L87 Difference]: Start difference. First operand 810 states and 858 transitions. Second operand has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:44,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:12:44,756 INFO L93 Difference]: Finished difference Result 2149 states and 2251 transitions. [2022-12-13 12:12:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-12-13 12:12:44,757 INFO L78 Accepts]: Start accepts. Automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 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 176 [2022-12-13 12:12:44,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:12:44,760 INFO L225 Difference]: With dead ends: 2149 [2022-12-13 12:12:44,760 INFO L226 Difference]: Without dead ends: 2090 [2022-12-13 12:12:44,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 413 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67808 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=37458, Invalid=134352, Unknown=0, NotChecked=0, Total=171810 [2022-12-13 12:12:44,767 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2228 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:12:44,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 287 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 12:12:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-12-13 12:12:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 942. [2022-12-13 12:12:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.0520722635494155) internal successors, (990), 941 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 990 transitions. [2022-12-13 12:12:45,317 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 990 transitions. Word has length 176 [2022-12-13 12:12:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:12:45,317 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 990 transitions. [2022-12-13 12:12:45,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:12:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 990 transitions. [2022-12-13 12:12:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-12-13 12:12:45,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:12:45,318 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 26, 15, 15, 15, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2022-12-13 12:12:45,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-12-13 12:12:45,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:12:45,520 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:12:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:12:45,521 INFO L85 PathProgramCache]: Analyzing trace with hash 278452780, now seen corresponding path program 9 times [2022-12-13 12:12:45,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:12:45,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475752432] [2022-12-13 12:12:45,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:12:45,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:12:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:12:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:48,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:12:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475752432] [2022-12-13 12:12:48,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475752432] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:12:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165672641] [2022-12-13 12:12:48,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:12:48,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:12:48,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:12:48,224 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:12:48,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-12-13 12:12:48,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2022-12-13 12:12:48,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:12:48,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 99 conjunts are in the unsatisfiable core [2022-12-13 12:12:48,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:12:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:51,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:12:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:12:56,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165672641] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:12:56,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:12:56,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 292 [2022-12-13 12:12:56,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200803970] [2022-12-13 12:12:56,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:12:56,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 293 states [2022-12-13 12:12:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:12:56,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 293 interpolants. [2022-12-13 12:12:56,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15346, Invalid=70210, Unknown=0, NotChecked=0, Total=85556 [2022-12-13 12:12:56,798 INFO L87 Difference]: Start difference. First operand 942 states and 990 transitions. Second operand has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:13:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:13:12,585 INFO L93 Difference]: Finished difference Result 2439 states and 2555 transitions. [2022-12-13 12:13:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2022-12-13 12:13:12,585 INFO L78 Accepts]: Start accepts. Automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 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 214 [2022-12-13 12:13:12,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:13:12,588 INFO L225 Difference]: With dead ends: 2439 [2022-12-13 12:13:12,589 INFO L226 Difference]: Without dead ends: 2366 [2022-12-13 12:13:12,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102689 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=56723, Invalid=201849, Unknown=0, NotChecked=0, Total=258572 [2022-12-13 12:13:12,598 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2676 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:13:12,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 360 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 12:13:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-12-13 12:13:13,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1096. [2022-12-13 12:13:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1095 states have (on average 1.0447488584474887) internal successors, (1144), 1095 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:13:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1144 transitions. [2022-12-13 12:13:13,276 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1144 transitions. Word has length 214 [2022-12-13 12:13:13,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:13:13,276 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1144 transitions. [2022-12-13 12:13:13,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:13:13,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1144 transitions. [2022-12-13 12:13:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-12-13 12:13:13,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:13:13,277 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 33, 17, 17, 17, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2022-12-13 12:13:13,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-12-13 12:13:13,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-13 12:13:13,478 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:13:13,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:13:13,478 INFO L85 PathProgramCache]: Analyzing trace with hash -125592008, now seen corresponding path program 10 times [2022-12-13 12:13:13,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:13:13,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800271915] [2022-12-13 12:13:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:13:13,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:13:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:13:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:13:17,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:13:17,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800271915] [2022-12-13 12:13:17,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800271915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:13:17,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925542733] [2022-12-13 12:13:17,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 12:13:17,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:13:17,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:13:17,989 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:13:17,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-12-13 12:13:18,059 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 12:13:18,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:13:18,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 119 conjunts are in the unsatisfiable core [2022-12-13 12:13:18,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:13:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:13:23,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:13:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:13:29,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925542733] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:13:29,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:13:29,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118, 118] total 352 [2022-12-13 12:13:29,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164665513] [2022-12-13 12:13:29,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:13:29,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 353 states [2022-12-13 12:13:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:13:29,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 353 interpolants. [2022-12-13 12:13:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22390, Invalid=101866, Unknown=0, NotChecked=0, Total=124256 [2022-12-13 12:13:29,140 INFO L87 Difference]: Start difference. First operand 1096 states and 1144 transitions. Second operand has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:13:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:13:51,900 INFO L93 Difference]: Finished difference Result 2880 states and 3012 transitions. [2022-12-13 12:13:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 379 states. [2022-12-13 12:13:51,901 INFO L78 Accepts]: Start accepts. Automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 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 256 [2022-12-13 12:13:51,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:13:51,904 INFO L225 Difference]: With dead ends: 2880 [2022-12-13 12:13:51,904 INFO L226 Difference]: Without dead ends: 2791 [2022-12-13 12:13:51,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 611 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149713 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=82835, Invalid=292321, Unknown=0, NotChecked=0, Total=375156 [2022-12-13 12:13:51,918 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3440 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:13:51,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 410 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 12:13:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-12-13 12:13:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1272. [2022-12-13 12:13:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 1.038552321007081) internal successors, (1320), 1271 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:13:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1320 transitions. [2022-12-13 12:13:52,729 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1320 transitions. Word has length 256 [2022-12-13 12:13:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:13:52,730 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1320 transitions. [2022-12-13 12:13:52,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:13:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1320 transitions. [2022-12-13 12:13:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-13 12:13:52,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:13:52,731 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 24, 24, 24, 18, 18, 18, 17, 17, 7, 1, 1, 1, 1, 1, 1] [2022-12-13 12:13:52,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-12-13 12:13:52,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:13:52,932 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:13:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:13:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1579369729, now seen corresponding path program 11 times [2022-12-13 12:13:52,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:13:52,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058811025] [2022-12-13 12:13:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:13:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:13:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:13:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:13:57,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:13:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058811025] [2022-12-13 12:13:57,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058811025] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:13:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320635281] [2022-12-13 12:13:57,576 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 12:13:57,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:13:57,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:13:57,577 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:13:57,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-12-13 12:13:57,727 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-12-13 12:13:57,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:13:57,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 121 conjunts are in the unsatisfiable core [2022-12-13 12:13:57,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:14:02,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:02,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:14:08,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:08,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320635281] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:14:08,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:14:08,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120, 120] total 358 [2022-12-13 12:14:08,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372358146] [2022-12-13 12:14:08,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:14:08,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 359 states [2022-12-13 12:14:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:14:08,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 359 interpolants. [2022-12-13 12:14:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22200, Invalid=106322, Unknown=0, NotChecked=0, Total=128522 [2022-12-13 12:14:08,810 INFO L87 Difference]: Start difference. First operand 1272 states and 1320 transitions. Second operand has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:14:36,469 INFO L93 Difference]: Finished difference Result 2887 states and 3035 transitions. [2022-12-13 12:14:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-12-13 12:14:36,470 INFO L78 Accepts]: Start accepts. Automaton has has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 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 278 [2022-12-13 12:14:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:14:36,473 INFO L225 Difference]: With dead ends: 2887 [2022-12-13 12:14:36,473 INFO L226 Difference]: Without dead ends: 2782 [2022-12-13 12:14:36,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 974 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 657 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174549 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=85979, Invalid=347643, Unknown=0, NotChecked=0, Total=433622 [2022-12-13 12:14:36,490 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2979 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:14:36,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 424 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 12:14:36,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-12-13 12:14:37,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 1457. [2022-12-13 12:14:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1456 states have (on average 1.0508241758241759) internal successors, (1530), 1456 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1530 transitions. [2022-12-13 12:14:37,340 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1530 transitions. Word has length 278 [2022-12-13 12:14:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:14:37,340 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1530 transitions. [2022-12-13 12:14:37,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1530 transitions. [2022-12-13 12:14:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-12-13 12:14:37,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:14:37,342 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 41, 19, 19, 19, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2022-12-13 12:14:37,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2022-12-13 12:14:37,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-12-13 12:14:37,543 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:14:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:14:37,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1315305313, now seen corresponding path program 12 times [2022-12-13 12:14:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:14:37,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165568866] [2022-12-13 12:14:37,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:14:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:14:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:14:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:43,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:14:43,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165568866] [2022-12-13 12:14:43,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165568866] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:14:43,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355235773] [2022-12-13 12:14:43,749 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 12:14:43,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:14:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:14:43,749 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:14:43,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-12-13 12:14:43,947 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 42 check-sat command(s) [2022-12-13 12:14:43,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:14:43,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 141 conjunts are in the unsatisfiable core [2022-12-13 12:14:43,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:14:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:50,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:14:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:59,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355235773] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:14:59,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:14:59,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 140, 140] total 418 [2022-12-13 12:14:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82995795] [2022-12-13 12:14:59,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:14:59,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 419 states [2022-12-13 12:14:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:14:59,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 419 interpolants. [2022-12-13 12:14:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31740, Invalid=143402, Unknown=0, NotChecked=0, Total=175142 [2022-12-13 12:14:59,284 INFO L87 Difference]: Start difference. First operand 1457 states and 1530 transitions. Second operand has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:15:35,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:15:35,997 INFO L93 Difference]: Finished difference Result 3825 states and 4000 transitions. [2022-12-13 12:15:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 449 states. [2022-12-13 12:15:35,998 INFO L78 Accepts]: Start accepts. Automaton has has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 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 302 [2022-12-13 12:15:35,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:15:36,001 INFO L225 Difference]: With dead ends: 3825 [2022-12-13 12:15:36,002 INFO L226 Difference]: Without dead ends: 3718 [2022-12-13 12:15:36,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 725 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211301 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=117294, Invalid=410508, Unknown=0, NotChecked=0, Total=527802 [2022-12-13 12:15:36,020 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4021 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4021 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:15:36,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4021 Valid, 508 Invalid, 2694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 12:15:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2022-12-13 12:15:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 1655. [2022-12-13 12:15:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 1.044740024183797) internal successors, (1728), 1654 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:15:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 1728 transitions. [2022-12-13 12:15:37,040 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 1728 transitions. Word has length 302 [2022-12-13 12:15:37,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:15:37,040 INFO L495 AbstractCegarLoop]: Abstraction has 1655 states and 1728 transitions. [2022-12-13 12:15:37,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:15:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 1728 transitions. [2022-12-13 12:15:37,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-12-13 12:15:37,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:15:37,043 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 50, 21, 21, 21, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2022-12-13 12:15:37,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-12-13 12:15:37,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-12-13 12:15:37,244 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:15:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:15:37,245 INFO L85 PathProgramCache]: Analyzing trace with hash 808871649, now seen corresponding path program 13 times [2022-12-13 12:15:37,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:15:37,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820705457] [2022-12-13 12:15:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:15:37,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:15:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:15:45,600 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 0 proven. 8111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:15:45,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:15:45,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820705457] [2022-12-13 12:15:45,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820705457] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:15:45,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853843971] [2022-12-13 12:15:45,601 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 12:15:45,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:15:45,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:15:45,602 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:15:45,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-12-13 12:15:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:15:45,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 165 conjunts are in the unsatisfiable core [2022-12-13 12:15:45,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:15:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 0 proven. 8111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:15:54,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:16:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 0 proven. 8111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:08,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853843971] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:16:08,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:16:08,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 164, 164] total 490 [2022-12-13 12:16:08,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964610606] [2022-12-13 12:16:08,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:16:08,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 491 states [2022-12-13 12:16:08,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 491 interpolants. [2022-12-13 12:16:08,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43876, Invalid=196714, Unknown=0, NotChecked=0, Total=240590 [2022-12-13 12:16:08,136 INFO L87 Difference]: Start difference. First operand 1655 states and 1728 transitions. Second operand has 491 states, 490 states have (on average 2.1510204081632653) internal successors, (1054), 491 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:17:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:17:06,672 INFO L93 Difference]: Finished difference Result 4538 states and 4733 transitions. [2022-12-13 12:17:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 525 states. [2022-12-13 12:17:06,673 INFO L78 Accepts]: Start accepts. Automaton has has 491 states, 490 states have (on average 2.1510204081632653) internal successors, (1054), 491 states have internal predecessors, (1054), 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 352 [2022-12-13 12:17:06,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:17:06,677 INFO L225 Difference]: With dead ends: 4538 [2022-12-13 12:17:06,678 INFO L226 Difference]: Without dead ends: 4411 [2022-12-13 12:17:06,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1226 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 849 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290338 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=161753, Invalid=561597, Unknown=0, NotChecked=0, Total=723350 [2022-12-13 12:17:06,708 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5137 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5137 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:17:06,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5137 Valid, 568 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 12:17:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4411 states. [2022-12-13 12:17:07,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4411 to 1875. [2022-12-13 12:17:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1874 states have (on average 1.0394877267876201) internal successors, (1948), 1874 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:17:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 1948 transitions. [2022-12-13 12:17:07,958 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 1948 transitions. Word has length 352 [2022-12-13 12:17:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:17:07,958 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 1948 transitions. [2022-12-13 12:17:07,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 491 states, 490 states have (on average 2.1510204081632653) internal successors, (1054), 491 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:17:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 1948 transitions. [2022-12-13 12:17:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-12-13 12:17:07,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:17:07,960 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 22, 22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1] [2022-12-13 12:17:07,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-12-13 12:17:08,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:17:08,162 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:17:08,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:17:08,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1416560823, now seen corresponding path program 14 times [2022-12-13 12:17:08,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:17:08,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899306930] [2022-12-13 12:17:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:08,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:17:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 7603 backedges. 0 proven. 7603 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:17:19,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:17:19,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899306930] [2022-12-13 12:17:19,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899306930] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:17:19,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515326125] [2022-12-13 12:17:19,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:17:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:17:19,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:17:19,589 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:17:19,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-12-13 12:17:19,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:17:19,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:17:19,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 173 conjunts are in the unsatisfiable core [2022-12-13 12:17:19,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:17:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 7603 backedges. 0 proven. 7603 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:17:28,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:17:44,050 INFO L134 CoverageAnalysis]: Checked inductivity of 7603 backedges. 0 proven. 7603 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:17:44,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515326125] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:17:44,051 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:17:44,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [172, 172, 172] total 514 [2022-12-13 12:17:44,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144294946] [2022-12-13 12:17:44,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:17:44,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-12-13 12:17:44,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:17:44,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-12-13 12:17:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44892, Invalid=219818, Unknown=0, NotChecked=0, Total=264710 [2022-12-13 12:17:44,072 INFO L87 Difference]: Start difference. First operand 1875 states and 1948 transitions. Second operand has 515 states, 514 states have (on average 2.272373540856031) internal successors, (1168), 515 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:18:53,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:18:53,784 INFO L93 Difference]: Finished difference Result 4378 states and 4569 transitions. [2022-12-13 12:18:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 593 states. [2022-12-13 12:18:53,785 INFO L78 Accepts]: Start accepts. Automaton has has 515 states, 514 states have (on average 2.272373540856031) internal successors, (1168), 515 states have internal predecessors, (1168), 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 390 [2022-12-13 12:18:53,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:18:53,790 INFO L225 Difference]: With dead ends: 4378 [2022-12-13 12:18:53,790 INFO L226 Difference]: Without dead ends: 4255 [2022-12-13 12:18:53,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 933 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351974 ImplicationChecksByTransitivity, 53.5s TimeCoverageRelationStatistics Valid=177230, Invalid=696060, Unknown=0, NotChecked=0, Total=873290 [2022-12-13 12:18:53,829 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5225 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:18:53,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5225 Valid, 557 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 12:18:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2022-12-13 12:18:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 1995. [2022-12-13 12:18:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1994 states have (on average 1.045135406218656) internal successors, (2084), 1994 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:18:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2084 transitions. [2022-12-13 12:18:55,364 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2084 transitions. Word has length 390 [2022-12-13 12:18:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:18:55,365 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2084 transitions. [2022-12-13 12:18:55,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 515 states, 514 states have (on average 2.272373540856031) internal successors, (1168), 515 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:18:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2084 transitions. [2022-12-13 12:18:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-12-13 12:18:55,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:18:55,370 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 75, 23, 23, 23, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1] [2022-12-13 12:18:55,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-12-13 12:18:55,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:18:55,571 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:18:55,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:18:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1157480429, now seen corresponding path program 15 times [2022-12-13 12:18:55,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:18:55,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895121644] [2022-12-13 12:18:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:18:55,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:18:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:19:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 15873 backedges. 0 proven. 15873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:19:13,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:19:13,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895121644] [2022-12-13 12:19:13,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895121644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:19:13,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011732176] [2022-12-13 12:19:13,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:19:13,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:19:13,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:19:13,781 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:19:13,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-12-13 12:19:14,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2022-12-13 12:19:14,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:19:14,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 221 conjunts are in the unsatisfiable core [2022-12-13 12:19:14,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:19:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 15873 backedges. 0 proven. 15873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:19:30,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:19:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 15873 backedges. 0 proven. 15873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:19:55,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011732176] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:19:55,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:19:55,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [220, 220, 220] total 658 [2022-12-13 12:19:55,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584085145] [2022-12-13 12:19:55,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:19:55,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 659 states [2022-12-13 12:19:55,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:19:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 659 interpolants. [2022-12-13 12:19:55,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81196, Invalid=352426, Unknown=0, NotChecked=0, Total=433622 [2022-12-13 12:19:55,886 INFO L87 Difference]: Start difference. First operand 1995 states and 2084 transitions. Second operand has 659 states, 658 states have (on average 2.121580547112462) internal successors, (1396), 659 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:22:18,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:22:18,320 INFO L93 Difference]: Finished difference Result 6542 states and 6805 transitions. [2022-12-13 12:22:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 697 states. [2022-12-13 12:22:18,321 INFO L78 Accepts]: Start accepts. Automaton has has 659 states, 658 states have (on average 2.121580547112462) internal successors, (1396), 659 states have internal predecessors, (1396), 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 466 [2022-12-13 12:22:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:22:18,328 INFO L225 Difference]: With dead ends: 6542 [2022-12-13 12:22:18,328 INFO L226 Difference]: Without dead ends: 6363 [2022-12-13 12:22:18,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1626 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 1133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517651 ImplicationChecksByTransitivity, 85.4s TimeCoverageRelationStatistics Valid=293978, Invalid=993112, Unknown=0, NotChecked=0, Total=1287090 [2022-12-13 12:22:18,388 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7135 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 3987 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7135 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 4016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:22:18,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7135 Valid, 732 Invalid, 4016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3987 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-13 12:22:18,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6363 states. [2022-12-13 12:22:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6363 to 2567. [2022-12-13 12:22:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 2566 states have (on average 1.0350740452065472) internal successors, (2656), 2566 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:22:20,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2656 transitions. [2022-12-13 12:22:20,437 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2656 transitions. Word has length 466 [2022-12-13 12:22:20,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:22:20,437 INFO L495 AbstractCegarLoop]: Abstraction has 2567 states and 2656 transitions. [2022-12-13 12:22:20,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 659 states, 658 states have (on average 2.121580547112462) internal successors, (1396), 659 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:22:20,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2656 transitions. [2022-12-13 12:22:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-12-13 12:22:20,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:22:20,441 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 47, 47, 47, 41, 24, 24, 24, 23, 23, 1, 1, 1, 1, 1, 1] [2022-12-13 12:22:20,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-12-13 12:22:20,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-12-13 12:22:20,642 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:22:20,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:22:20,643 INFO L85 PathProgramCache]: Analyzing trace with hash 646801969, now seen corresponding path program 16 times [2022-12-13 12:22:20,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:22:20,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759246004] [2022-12-13 12:22:20,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:22:20,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:22:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:22:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 13051 backedges. 0 proven. 13051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:22:38,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:22:38,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759246004] [2022-12-13 12:22:38,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759246004] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:22:38,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728483226] [2022-12-13 12:22:38,409 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 12:22:38,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:22:38,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:22:38,410 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:22:38,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_393431e8-c72c-4e97-9cee-6d11e4f78fa1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-12-13 12:22:38,552 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 12:22:38,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:22:38,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 225 conjunts are in the unsatisfiable core [2022-12-13 12:22:38,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:22:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 13051 backedges. 0 proven. 13051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:22:52,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:23:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 13051 backedges. 0 proven. 13051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:23:16,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728483226] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:23:16,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:23:16,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [224, 224, 224] total 670 [2022-12-13 12:23:16,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114170907] [2022-12-13 12:23:16,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:23:16,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 671 states [2022-12-13 12:23:16,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:23:16,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 671 interpolants. [2022-12-13 12:23:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76512, Invalid=373058, Unknown=0, NotChecked=0, Total=449570 [2022-12-13 12:23:16,113 INFO L87 Difference]: Start difference. First operand 2567 states and 2656 transitions. Second operand has 671 states, 670 states have (on average 2.226865671641791) internal successors, (1492), 671 states have internal predecessors, (1492), 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)