./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/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_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/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 32bit --witnessprinter.graph.data.programhash f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- 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 13:47:42,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:47:42,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:47:42,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:47:42,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:47:42,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:47:42,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:47:42,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:47:42,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:47:42,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:47:42,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:47:42,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:47:42,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:47:42,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:47:42,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:47:42,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:47:42,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:47:42,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:47:42,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:47:42,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:47:42,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:47:42,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:47:42,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:47:42,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:47:42,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:47:42,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:47:42,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:47:42,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:47:42,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:47:42,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:47:42,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:47:42,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:47:42,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:47:42,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:47:42,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:47:42,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:47:42,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:47:42,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:47:42,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:47:42,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:47:42,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:47:42,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 13:47:42,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:47:42,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:47:42,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:47:42,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:47:42,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:47:42,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:47:42,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:47:42,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:47:42,152 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:47:42,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:47:42,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:47:42,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:47:42,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:47:42,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:47:42,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:47:42,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:47:42,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:47:42,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:47:42,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:47:42,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:47:42,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:47:42,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:47:42,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:47:42,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:47:42,163 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:47:42,163 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_c34085ad-0484-4ee3-8948-421c532cab7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2022-12-13 13:47:42,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:47:42,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:47:42,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:47:42,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:47:42,394 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:47:42,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2022-12-13 13:47:44,922 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:47:45,120 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:47:45,120 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2022-12-13 13:47:45,130 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/data/e5e26cd00/e0223d1a214f42b5acdbabedba372d6a/FLAG3817da302 [2022-12-13 13:47:45,479 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/data/e5e26cd00/e0223d1a214f42b5acdbabedba372d6a [2022-12-13 13:47:45,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:47:45,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:47:45,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:47:45,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:47:45,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:47:45,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:45,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a0da1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45, skipping insertion in model container [2022-12-13 13:47:45,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:45,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:47:45,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:47:45,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i[33021,33034] [2022-12-13 13:47:45,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:47:45,842 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:47:45,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i[33021,33034] [2022-12-13 13:47:45,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:47:45,946 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:47:45,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45 WrapperNode [2022-12-13 13:47:45,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:47:45,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:47:45,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:47:45,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:47:45,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:45,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,017 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778 [2022-12-13 13:47:46,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:47:46,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:47:46,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:47:46,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:47:46,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,083 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:47:46,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:47:46,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:47:46,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:47:46,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (1/1) ... [2022-12-13 13:47:46,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:47:46,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:46,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:47:46,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:47:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:47:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 13:47:46,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 13:47:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:47:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 13:47:46,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 13:47:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:47:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:47:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:47:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 13:47:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 13:47:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:47:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:47:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:47:46,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:47:46,280 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:47:46,282 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:47:47,119 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:47:47,124 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:47:47,124 INFO L300 CfgBuilder]: Removed 40 assume(true) statements. [2022-12-13 13:47:47,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:47:47 BoogieIcfgContainer [2022-12-13 13:47:47,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:47:47,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:47:47,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:47:47,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:47:47,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:47:45" (1/3) ... [2022-12-13 13:47:47,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c6fdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:47:47, skipping insertion in model container [2022-12-13 13:47:47,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:47:45" (2/3) ... [2022-12-13 13:47:47,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c6fdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:47:47, skipping insertion in model container [2022-12-13 13:47:47,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:47:47" (3/3) ... [2022-12-13 13:47:47,132 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-2.i [2022-12-13 13:47:47,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:47:47,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 13:47:47,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:47:47,188 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;@266dac17, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:47:47,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 13:47:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 143 states have (on average 1.6853146853146854) internal successors, (241), 159 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 13:47:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 13:47:47,197 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:47,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:47:47,198 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 13:47:47,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:47,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-12-13 13:47:47,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:47,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207918488] [2022-12-13 13:47:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:47,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:47,396 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 13:47:47,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207918488] [2022-12-13 13:47:47,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207918488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:47,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:47,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:47:47,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82367358] [2022-12-13 13:47:47,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:47,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:47:47,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:47:47,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:47:47,429 INFO L87 Difference]: Start difference. First operand has 165 states, 143 states have (on average 1.6853146853146854) internal successors, (241), 159 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 13:47:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:47,496 INFO L93 Difference]: Finished difference Result 418 states and 696 transitions. [2022-12-13 13:47:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:47:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 13:47:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:47,506 INFO L225 Difference]: With dead ends: 418 [2022-12-13 13:47:47,506 INFO L226 Difference]: Without dead ends: 222 [2022-12-13 13:47:47,508 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 13:47:47,511 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 110 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:47,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 457 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-12-13 13:47:47,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 136. [2022-12-13 13:47:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 130 states have internal predecessors, (156), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 13:47:47,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-12-13 13:47:47,546 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 6 [2022-12-13 13:47:47,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:47,546 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-12-13 13:47:47,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 13:47:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-12-13 13:47:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 13:47:47,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:47,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:47,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:47:47,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:47,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:47,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1053673023, now seen corresponding path program 1 times [2022-12-13 13:47:47,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:47,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775971993] [2022-12-13 13:47:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:47,673 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:47,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732434765] [2022-12-13 13:47:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:47,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:47,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:47,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:47:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:48,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:47:48,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:48,231 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 13:47:48,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:47:48,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:48,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775971993] [2022-12-13 13:47:48,232 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:48,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732434765] [2022-12-13 13:47:48,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732434765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:48,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:48,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:47:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801248839] [2022-12-13 13:47:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:48,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:47:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:47:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:47:48,236 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 13:47:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:48,324 INFO L93 Difference]: Finished difference Result 286 states and 388 transitions. [2022-12-13 13:47:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:47:48,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-12-13 13:47:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:48,326 INFO L225 Difference]: With dead ends: 286 [2022-12-13 13:47:48,327 INFO L226 Difference]: Without dead ends: 157 [2022-12-13 13:47:48,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 13:47:48,330 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 9 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 299 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:47:48,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-13 13:47:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2022-12-13 13:47:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 136 states have (on average 1.2941176470588236) internal successors, (176), 150 states have internal predecessors, (176), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 13:47:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2022-12-13 13:47:48,341 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 56 [2022-12-13 13:47:48,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:48,341 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2022-12-13 13:47:48,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 13:47:48,342 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2022-12-13 13:47:48,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 13:47:48,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:48,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:48,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:47:48,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:48,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:48,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:48,545 INFO L85 PathProgramCache]: Analyzing trace with hash 778913409, now seen corresponding path program 1 times [2022-12-13 13:47:48,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:48,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129690455] [2022-12-13 13:47:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:48,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:48,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:48,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020291716] [2022-12-13 13:47:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:48,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:48,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:48,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:48,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:47:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:49,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:47:49,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:49,136 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 13:47:49,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:47:49,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:49,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129690455] [2022-12-13 13:47:49,136 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:49,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020291716] [2022-12-13 13:47:49,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020291716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:49,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:49,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:47:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823565141] [2022-12-13 13:47:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:49,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:47:49,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:49,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:47:49,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:47:49,138 INFO L87 Difference]: Start difference. First operand 156 states and 202 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 13:47:49,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:49,194 INFO L93 Difference]: Finished difference Result 295 states and 387 transitions. [2022-12-13 13:47:49,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:47:49,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-12-13 13:47:49,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:49,196 INFO L225 Difference]: With dead ends: 295 [2022-12-13 13:47:49,196 INFO L226 Difference]: Without dead ends: 146 [2022-12-13 13:47:49,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 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 13:47:49,198 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 139 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:49,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 333 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-13 13:47:49,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2022-12-13 13:47:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 136 states have internal predecessors, (155), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 13:47:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 181 transitions. [2022-12-13 13:47:49,211 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 181 transitions. Word has length 56 [2022-12-13 13:47:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:49,211 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 181 transitions. [2022-12-13 13:47:49,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 13:47:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 181 transitions. [2022-12-13 13:47:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 13:47:49,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:49,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:49,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 13:47:49,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:49,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:49,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1492117709, now seen corresponding path program 1 times [2022-12-13 13:47:49,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:49,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832634500] [2022-12-13 13:47:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:49,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:49,619 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:49,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905949383] [2022-12-13 13:47:49,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:49,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:49,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:49,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:49,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:47:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:50,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:47:50,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:50,187 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 13:47:50,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:47:50,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:50,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832634500] [2022-12-13 13:47:50,188 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:50,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905949383] [2022-12-13 13:47:50,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905949383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:50,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:50,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:47:50,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139857858] [2022-12-13 13:47:50,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:50,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:47:50,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:50,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:47:50,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:47:50,190 INFO L87 Difference]: Start difference. First operand 142 states and 181 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 13:47:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:50,216 INFO L93 Difference]: Finished difference Result 142 states and 181 transitions. [2022-12-13 13:47:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:47:50,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-12-13 13:47:50,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:50,218 INFO L225 Difference]: With dead ends: 142 [2022-12-13 13:47:50,219 INFO L226 Difference]: Without dead ends: 141 [2022-12-13 13:47:50,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 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 13:47:50,220 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 83 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 338 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 13:47:50,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-13 13:47:50,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-12-13 13:47:50,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 122 states have (on average 1.2622950819672132) internal successors, (154), 135 states have internal predecessors, (154), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 13:47:50,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 180 transitions. [2022-12-13 13:47:50,231 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 180 transitions. Word has length 56 [2022-12-13 13:47:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:50,232 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 180 transitions. [2022-12-13 13:47:50,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 13:47:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 180 transitions. [2022-12-13 13:47:50,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 13:47:50,233 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:50,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:50,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:47:50,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:50,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:50,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:50,435 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-12-13 13:47:50,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:50,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611761696] [2022-12-13 13:47:50,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:50,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:50,512 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:50,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602873964] [2022-12-13 13:47:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:50,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:50,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:50,513 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:50,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:47:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:51,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:47:51,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:51,102 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 13:47:51,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:47:51,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:51,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611761696] [2022-12-13 13:47:51,102 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:51,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602873964] [2022-12-13 13:47:51,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602873964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:51,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:51,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:47:51,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806956441] [2022-12-13 13:47:51,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:51,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:47:51,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:51,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:47:51,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:47:51,104 INFO L87 Difference]: Start difference. First operand 141 states and 180 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 13:47:51,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:51,139 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2022-12-13 13:47:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:47:51,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-12-13 13:47:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:51,141 INFO L225 Difference]: With dead ends: 232 [2022-12-13 13:47:51,141 INFO L226 Difference]: Without dead ends: 231 [2022-12-13 13:47:51,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 13:47:51,142 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 49 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:51,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 488 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:51,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-13 13:47:51,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-12-13 13:47:51,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 209 states have (on average 1.229665071770335) internal successors, (257), 222 states have internal predecessors, (257), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-13 13:47:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2022-12-13 13:47:51,156 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 57 [2022-12-13 13:47:51,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:51,156 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2022-12-13 13:47:51,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 13:47:51,156 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2022-12-13 13:47:51,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 13:47:51,158 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:51,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:51,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:47:51,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:51,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash -268562827, now seen corresponding path program 1 times [2022-12-13 13:47:51,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:51,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476797968] [2022-12-13 13:47:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:51,470 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:51,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343160877] [2022-12-13 13:47:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:51,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:51,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:51,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:51,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:47:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:52,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:47:52,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:52,109 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 13:47:52,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:47:52,179 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 13:47:52,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476797968] [2022-12-13 13:47:52,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343160877] [2022-12-13 13:47:52,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343160877] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:47:52,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:47:52,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 13:47:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269507005] [2022-12-13 13:47:52,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:47:52,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:47:52,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:52,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:47:52,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:47:52,183 INFO L87 Difference]: Start difference. First operand 231 states and 289 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 13:47:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:52,259 INFO L93 Difference]: Finished difference Result 361 states and 460 transitions. [2022-12-13 13:47:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:47:52,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 61 [2022-12-13 13:47:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:52,260 INFO L225 Difference]: With dead ends: 361 [2022-12-13 13:47:52,260 INFO L226 Difference]: Without dead ends: 327 [2022-12-13 13:47:52,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:47:52,261 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 301 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:52,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1054 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-12-13 13:47:52,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-12-13 13:47:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 315 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 13:47:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2022-12-13 13:47:52,271 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 61 [2022-12-13 13:47:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:52,271 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2022-12-13 13:47:52,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 13:47:52,271 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2022-12-13 13:47:52,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 13:47:52,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:52,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:52,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 13:47:52,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:52,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:52,476 INFO L85 PathProgramCache]: Analyzing trace with hash 255277007, now seen corresponding path program 1 times [2022-12-13 13:47:52,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:52,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003516444] [2022-12-13 13:47:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:52,613 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:52,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237435686] [2022-12-13 13:47:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:52,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:52,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:52,614 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:52,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:47:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:53,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:47:53,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:47:53,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:47:53,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:53,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003516444] [2022-12-13 13:47:53,312 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:53,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237435686] [2022-12-13 13:47:53,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237435686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:53,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:53,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:47:53,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653213483] [2022-12-13 13:47:53,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:53,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:47:53,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:47:53,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:47:53,314 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 13:47:53,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:53,359 INFO L93 Difference]: Finished difference Result 594 states and 742 transitions. [2022-12-13 13:47:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:47:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-12-13 13:47:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:53,360 INFO L225 Difference]: With dead ends: 594 [2022-12-13 13:47:53,360 INFO L226 Difference]: Without dead ends: 325 [2022-12-13 13:47:53,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 13:47:53,362 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 15 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:53,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 320 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-12-13 13:47:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-12-13 13:47:53,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 300 states have (on average 1.2133333333333334) internal successors, (364), 313 states have internal predecessors, (364), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 13:47:53,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 402 transitions. [2022-12-13 13:47:53,370 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 402 transitions. Word has length 62 [2022-12-13 13:47:53,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:53,370 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 402 transitions. [2022-12-13 13:47:53,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 13:47:53,371 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 402 transitions. [2022-12-13 13:47:53,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 13:47:53,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:53,372 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:53,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 13:47:53,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:53,573 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 13:47:53,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash -201227472, now seen corresponding path program 1 times [2022-12-13 13:47:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:53,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064472871] [2022-12-13 13:47:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:53,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:53,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:53,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372340845] [2022-12-13 13:47:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:53,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:53,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:53,641 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:53,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:47:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:56,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:47:56,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:47:56,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:47:56,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:56,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064472871] [2022-12-13 13:47:56,299 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:56,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372340845] [2022-12-13 13:47:56,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372340845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:56,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:56,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:47:56,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485993128] [2022-12-13 13:47:56,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:56,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:47:56,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:56,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:47:56,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:47:56,302 INFO L87 Difference]: Start difference. First operand 325 states and 402 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:47:56,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:56,333 INFO L93 Difference]: Finished difference Result 601 states and 758 transitions. [2022-12-13 13:47:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:47:56,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2022-12-13 13:47:56,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:56,336 INFO L225 Difference]: With dead ends: 601 [2022-12-13 13:47:56,336 INFO L226 Difference]: Without dead ends: 328 [2022-12-13 13:47:56,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 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 13:47:56,337 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:56,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 494 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-12-13 13:47:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-12-13 13:47:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 316 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-12-13 13:47:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 408 transitions. [2022-12-13 13:47:56,353 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 408 transitions. Word has length 77 [2022-12-13 13:47:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:56,354 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 408 transitions. [2022-12-13 13:47:56,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:47:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 408 transitions. [2022-12-13 13:47:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 13:47:56,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:56,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:56,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 13:47:56,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 13:47:56,557 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:56,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1287301230, now seen corresponding path program 1 times [2022-12-13 13:47:56,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:56,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954346650] [2022-12-13 13:47:56,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:56,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:56,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:56,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416001811] [2022-12-13 13:47:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:56,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:56,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:56,641 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:56,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 13:47:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:57,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:47:57,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:47:57,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:47:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:47:57,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:57,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954346650] [2022-12-13 13:47:57,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:57,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416001811] [2022-12-13 13:47:57,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416001811] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:47:57,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:47:57,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 13:47:57,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228241479] [2022-12-13 13:47:57,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:47:57,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:47:57,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:57,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:47:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:47:57,833 INFO L87 Difference]: Start difference. First operand 328 states and 408 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:47:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:57,942 INFO L93 Difference]: Finished difference Result 615 states and 785 transitions. [2022-12-13 13:47:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:47:57,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2022-12-13 13:47:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:57,945 INFO L225 Difference]: With dead ends: 615 [2022-12-13 13:47:57,945 INFO L226 Difference]: Without dead ends: 339 [2022-12-13 13:47:57,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:47:57,946 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:57,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 659 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:47:57,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-12-13 13:47:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-12-13 13:47:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 310 states have (on average 1.229032258064516) internal successors, (381), 324 states have internal predecessors, (381), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-12-13 13:47:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 422 transitions. [2022-12-13 13:47:57,961 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 422 transitions. Word has length 79 [2022-12-13 13:47:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:57,961 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 422 transitions. [2022-12-13 13:47:57,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:47:57,962 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 422 transitions. [2022-12-13 13:47:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-13 13:47:57,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:57,962 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:57,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 13:47:58,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:58,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:58,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1957432592, now seen corresponding path program 2 times [2022-12-13 13:47:58,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:58,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411731787] [2022-12-13 13:47:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:58,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:58,234 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:58,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448458998] [2022-12-13 13:47:58,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:47:58,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:58,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:58,235 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:58,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 13:47:58,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:47:58,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:47:58,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 13:47:58,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:59,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:47:59,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:47:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 13:47:59,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:59,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411731787] [2022-12-13 13:47:59,195 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:47:59,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448458998] [2022-12-13 13:47:59,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448458998] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:47:59,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:47:59,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2022-12-13 13:47:59,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2647067] [2022-12-13 13:47:59,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:47:59,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 13:47:59,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:59,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 13:47:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-12-13 13:47:59,197 INFO L87 Difference]: Start difference. First operand 337 states and 422 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 13:47:59,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:59,549 INFO L93 Difference]: Finished difference Result 674 states and 875 transitions. [2022-12-13 13:47:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 13:47:59,549 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 83 [2022-12-13 13:47:59,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:59,551 INFO L225 Difference]: With dead ends: 674 [2022-12-13 13:47:59,551 INFO L226 Difference]: Without dead ends: 343 [2022-12-13 13:47:59,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2022-12-13 13:47:59,552 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 158 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:59,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1128 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:47:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-12-13 13:47:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 334. [2022-12-13 13:47:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 307 states have (on average 1.228013029315961) internal successors, (377), 321 states have internal predecessors, (377), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-12-13 13:47:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 418 transitions. [2022-12-13 13:47:59,563 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 418 transitions. Word has length 83 [2022-12-13 13:47:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:59,563 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 418 transitions. [2022-12-13 13:47:59,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 13:47:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 418 transitions. [2022-12-13 13:47:59,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 13:47:59,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:59,564 INFO L195 NwaCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:47:59,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 13:47:59,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 13:47:59,765 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:47:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:59,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1319164720, now seen corresponding path program 3 times [2022-12-13 13:47:59,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:59,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355552590] [2022-12-13 13:47:59,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:59,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:59,805 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:47:59,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326728820] [2022-12-13 13:47:59,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:47:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:47:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:47:59,806 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:47:59,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 13:48:41,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 13:48:41,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:48:41,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:48:41,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:48:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:41,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:48:41,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:41,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355552590] [2022-12-13 13:48:41,882 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:48:41,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326728820] [2022-12-13 13:48:41,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326728820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:41,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:41,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:48:41,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148633567] [2022-12-13 13:48:41,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:41,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:48:41,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:41,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:48:41,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:48:41,888 INFO L87 Difference]: Start difference. First operand 334 states and 418 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:48:41,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:41,950 INFO L93 Difference]: Finished difference Result 334 states and 418 transitions. [2022-12-13 13:48:41,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:48:41,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2022-12-13 13:48:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:41,953 INFO L225 Difference]: With dead ends: 334 [2022-12-13 13:48:41,954 INFO L226 Difference]: Without dead ends: 333 [2022-12-13 13:48:41,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:48:41,954 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 196 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:41,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 726 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:48:41,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-12-13 13:48:41,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-12-13 13:48:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 307 states have (on average 1.221498371335505) internal successors, (375), 320 states have internal predecessors, (375), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-12-13 13:48:41,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 416 transitions. [2022-12-13 13:48:41,968 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 416 transitions. Word has length 89 [2022-12-13 13:48:41,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:41,968 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 416 transitions. [2022-12-13 13:48:41,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:48:41,969 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 416 transitions. [2022-12-13 13:48:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-13 13:48:41,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:41,971 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:42,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 13:48:42,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:42,172 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:48:42,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:42,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1660450332, now seen corresponding path program 1 times [2022-12-13 13:48:42,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:42,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745009837] [2022-12-13 13:48:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:42,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:42,366 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:48:42,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814309446] [2022-12-13 13:48:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:42,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:42,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:42,367 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:48:42,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 13:48:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:43,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 3781 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:48:43,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:48:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:43,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:48:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:43,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:43,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745009837] [2022-12-13 13:48:43,945 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:48:43,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814309446] [2022-12-13 13:48:43,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814309446] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:48:43,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:48:43,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-12-13 13:48:43,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860796823] [2022-12-13 13:48:43,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:48:43,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 13:48:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 13:48:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:48:43,947 INFO L87 Difference]: Start difference. First operand 333 states and 416 transitions. Second operand has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:48:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:44,082 INFO L93 Difference]: Finished difference Result 454 states and 578 transitions. [2022-12-13 13:48:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:48:44,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 194 [2022-12-13 13:48:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:44,084 INFO L225 Difference]: With dead ends: 454 [2022-12-13 13:48:44,084 INFO L226 Difference]: Without dead ends: 453 [2022-12-13 13:48:44,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:48:44,085 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 487 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:44,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1222 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:48:44,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-12-13 13:48:44,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 332. [2022-12-13 13:48:44,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 307 states have (on average 1.218241042345277) internal successors, (374), 319 states have internal predecessors, (374), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-12-13 13:48:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 415 transitions. [2022-12-13 13:48:44,096 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 415 transitions. Word has length 194 [2022-12-13 13:48:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:44,097 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 415 transitions. [2022-12-13 13:48:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:48:44,097 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 415 transitions. [2022-12-13 13:48:44,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-13 13:48:44,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:44,099 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:44,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 13:48:44,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:44,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:48:44,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1489182740, now seen corresponding path program 1 times [2022-12-13 13:48:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:44,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452825974] [2022-12-13 13:48:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:44,455 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:48:44,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148078930] [2022-12-13 13:48:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:44,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:44,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:44,456 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:48:44,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 13:48:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:45,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 13:48:45,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:48:45,871 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:45,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:48:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:46,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452825974] [2022-12-13 13:48:46,087 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:48:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148078930] [2022-12-13 13:48:46,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148078930] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:48:46,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:48:46,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-12-13 13:48:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157263979] [2022-12-13 13:48:46,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:48:46,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 13:48:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:46,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 13:48:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:48:46,089 INFO L87 Difference]: Start difference. First operand 332 states and 415 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:48:46,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:46,264 INFO L93 Difference]: Finished difference Result 733 states and 915 transitions. [2022-12-13 13:48:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 13:48:46,264 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 198 [2022-12-13 13:48:46,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:46,266 INFO L225 Difference]: With dead ends: 733 [2022-12-13 13:48:46,266 INFO L226 Difference]: Without dead ends: 700 [2022-12-13 13:48:46,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-12-13 13:48:46,267 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 535 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:46,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1614 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:48:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-12-13 13:48:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-12-13 13:48:46,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 663 states have (on average 1.191553544494721) internal successors, (790), 675 states have internal predecessors, (790), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-12-13 13:48:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 859 transitions. [2022-12-13 13:48:46,288 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 859 transitions. Word has length 198 [2022-12-13 13:48:46,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:46,288 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 859 transitions. [2022-12-13 13:48:46,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:48:46,288 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 859 transitions. [2022-12-13 13:48:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-12-13 13:48:46,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:46,295 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:46,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 13:48:46,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 13:48:46,495 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 13:48:46,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:46,496 INFO L85 PathProgramCache]: Analyzing trace with hash 588284500, now seen corresponding path program 2 times [2022-12-13 13:48:46,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:46,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039372354] [2022-12-13 13:48:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:46,954 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:48:46,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89796159] [2022-12-13 13:48:46,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:48:46,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:46,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:46,956 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:48:46,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 13:48:48,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:48:48,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:48:48,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:48:48,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:48:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-12-13 13:48:48,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:48:48,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:48,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039372354] [2022-12-13 13:48:48,623 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:48:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89796159] [2022-12-13 13:48:48,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89796159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:48,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:48,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:48,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508442122] [2022-12-13 13:48:48,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:48,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:48:48,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:48,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:48:48,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:48:48,624 INFO L87 Difference]: Start difference. First operand 700 states and 859 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:48:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:48,699 INFO L93 Difference]: Finished difference Result 700 states and 859 transitions. [2022-12-13 13:48:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:48:48,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 418 [2022-12-13 13:48:48,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:48,702 INFO L225 Difference]: With dead ends: 700 [2022-12-13 13:48:48,702 INFO L226 Difference]: Without dead ends: 699 [2022-12-13 13:48:48,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 415 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 13:48:48,703 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 99 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:48,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 266 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:48:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-13 13:48:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2022-12-13 13:48:48,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 663 states have (on average 1.1900452488687783) internal successors, (789), 674 states have internal predecessors, (789), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-12-13 13:48:48,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 858 transitions. [2022-12-13 13:48:48,741 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 858 transitions. Word has length 418 [2022-12-13 13:48:48,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:48,742 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 858 transitions. [2022-12-13 13:48:48,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:48:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 858 transitions. [2022-12-13 13:48:48,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-12-13 13:48:48,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:48,746 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:48,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 13:48:48,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 13:48:48,958 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 13:48:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1056950740, now seen corresponding path program 1 times [2022-12-13 13:48:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:48,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768312605] [2022-12-13 13:48:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:48,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:49,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:48:49,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873691386] [2022-12-13 13:48:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:49,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:49,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:49,412 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:48:49,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 13:48:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:52,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 9721 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 13:48:52,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:48:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:52,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:48:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 13:48:52,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:52,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768312605] [2022-12-13 13:48:52,910 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:48:52,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873691386] [2022-12-13 13:48:52,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873691386] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:48:52,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:48:52,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-12-13 13:48:52,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110505930] [2022-12-13 13:48:52,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:48:52,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 13:48:52,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 13:48:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-12-13 13:48:52,914 INFO L87 Difference]: Start difference. First operand 699 states and 858 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:48:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:53,185 INFO L93 Difference]: Finished difference Result 1007 states and 1245 transitions. [2022-12-13 13:48:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 13:48:53,186 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 419 [2022-12-13 13:48:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:53,188 INFO L225 Difference]: With dead ends: 1007 [2022-12-13 13:48:53,188 INFO L226 Difference]: Without dead ends: 975 [2022-12-13 13:48:53,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 806 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-12-13 13:48:53,189 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 651 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:53,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1895 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:48:53,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-12-13 13:48:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-12-13 13:48:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 930 states have (on average 1.1838709677419355) internal successors, (1101), 941 states have internal predecessors, (1101), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-12-13 13:48:53,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1191 transitions. [2022-12-13 13:48:53,217 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1191 transitions. Word has length 419 [2022-12-13 13:48:53,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:53,217 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1191 transitions. [2022-12-13 13:48:53,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:48:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1191 transitions. [2022-12-13 13:48:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-12-13 13:48:53,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:53,221 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:53,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 13:48:53,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 13:48:53,422 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 13:48:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1026889557, now seen corresponding path program 2 times [2022-12-13 13:48:53,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:53,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974116835] [2022-12-13 13:48:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:53,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:53,918 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:48:53,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786308949] [2022-12-13 13:48:53,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:48:53,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:53,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:53,919 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:48:53,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 13:48:56,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:48:56,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:48:56,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:48:56,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:48:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:48:56,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:48:56,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:56,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974116835] [2022-12-13 13:48:56,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:48:56,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786308949] [2022-12-13 13:48:56,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786308949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:56,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:56,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:56,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296392624] [2022-12-13 13:48:56,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:56,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:48:56,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:56,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:48:56,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:48:56,678 INFO L87 Difference]: Start difference. First operand 975 states and 1191 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:48:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:56,743 INFO L93 Difference]: Finished difference Result 1000 states and 1236 transitions. [2022-12-13 13:48:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:48:56,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 584 [2022-12-13 13:48:56,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:56,746 INFO L225 Difference]: With dead ends: 1000 [2022-12-13 13:48:56,747 INFO L226 Difference]: Without dead ends: 999 [2022-12-13 13:48:56,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 581 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 13:48:56,747 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 60 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:56,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 357 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:48:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-12-13 13:48:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 978. [2022-12-13 13:48:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 933 states have (on average 1.1832797427652733) internal successors, (1104), 944 states have internal predecessors, (1104), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-12-13 13:48:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1194 transitions. [2022-12-13 13:48:56,776 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1194 transitions. Word has length 584 [2022-12-13 13:48:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:56,776 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1194 transitions. [2022-12-13 13:48:56,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 13:48:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1194 transitions. [2022-12-13 13:48:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-12-13 13:48:56,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:56,780 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:56,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 13:48:56,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 13:48:56,981 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:48:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1757886514, now seen corresponding path program 1 times [2022-12-13 13:48:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:56,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646674381] [2022-12-13 13:48:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:56,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:57,666 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:48:57,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654795357] [2022-12-13 13:48:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:57,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:48:57,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:57,668 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:48:57,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 13:49:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:49:02,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 14194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:49:02,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:49:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:49:02,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:49:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:49:03,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:03,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646674381] [2022-12-13 13:49:03,113 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:49:03,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654795357] [2022-12-13 13:49:03,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654795357] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:49:03,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:49:03,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-12-13 13:49:03,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740837982] [2022-12-13 13:49:03,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:49:03,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:49:03,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:03,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:49:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:49:03,116 INFO L87 Difference]: Start difference. First operand 978 states and 1194 transitions. Second operand has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-13 13:49:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:03,326 INFO L93 Difference]: Finished difference Result 1069 states and 1344 transitions. [2022-12-13 13:49:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 13:49:03,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 596 [2022-12-13 13:49:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:03,329 INFO L225 Difference]: With dead ends: 1069 [2022-12-13 13:49:03,329 INFO L226 Difference]: Without dead ends: 1068 [2022-12-13 13:49:03,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1182 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-12-13 13:49:03,329 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 332 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:03,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 538 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:49:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-12-13 13:49:03,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2022-12-13 13:49:03,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 990 states have (on average 1.2030303030303031) internal successors, (1191), 1031 states have internal predecessors, (1191), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-12-13 13:49:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1341 transitions. [2022-12-13 13:49:03,361 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1341 transitions. Word has length 596 [2022-12-13 13:49:03,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:03,362 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1341 transitions. [2022-12-13 13:49:03,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-13 13:49:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1341 transitions. [2022-12-13 13:49:03,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-12-13 13:49:03,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:03,366 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:49:03,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 13:49:03,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:03,566 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 13:49:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1961998903, now seen corresponding path program 2 times [2022-12-13 13:49:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:03,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102354255] [2022-12-13 13:49:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:04,161 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:49:04,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612389680] [2022-12-13 13:49:04,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:49:04,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:04,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:49:04,162 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:49:04,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 13:49:09,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:49:09,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:49:09,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 14302 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 13:49:09,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:49:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:49:09,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:49:10,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked. [2022-12-13 13:49:10,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:10,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102354255] [2022-12-13 13:49:10,458 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:49:10,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612389680] [2022-12-13 13:49:10,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612389680] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:49:10,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:49:10,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-12-13 13:49:10,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093534739] [2022-12-13 13:49:10,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:49:10,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 13:49:10,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 13:49:10,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-12-13 13:49:10,462 INFO L87 Difference]: Start difference. First operand 1068 states and 1341 transitions. Second operand has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-12-13 13:49:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:11,188 INFO L93 Difference]: Finished difference Result 1249 states and 1641 transitions. [2022-12-13 13:49:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 13:49:11,188 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 632 [2022-12-13 13:49:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:11,192 INFO L225 Difference]: With dead ends: 1249 [2022-12-13 13:49:11,192 INFO L226 Difference]: Without dead ends: 1248 [2022-12-13 13:49:11,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 13:49:11,193 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1498 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 748 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:11,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 695 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [748 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 13:49:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-12-13 13:49:11,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2022-12-13 13:49:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1104 states have (on average 1.236413043478261) internal successors, (1365), 1205 states have internal predecessors, (1365), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-12-13 13:49:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1635 transitions. [2022-12-13 13:49:11,238 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1635 transitions. Word has length 632 [2022-12-13 13:49:11,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:11,239 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1635 transitions. [2022-12-13 13:49:11,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-12-13 13:49:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1635 transitions. [2022-12-13 13:49:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-12-13 13:49:11,244 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:11,244 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:49:11,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 13:49:11,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 13:49:11,445 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 13:49:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1449663881, now seen corresponding path program 3 times [2022-12-13 13:49:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:11,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125797220] [2022-12-13 13:49:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:12,021 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:49:12,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396134089] [2022-12-13 13:49:12,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:49:12,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:12,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:49:12,023 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:49:12,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 13:49:16,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 13:49:16,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:49:16,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:49:16,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:49:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3131 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-12-13 13:49:16,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:49:16,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:16,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125797220] [2022-12-13 13:49:16,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:49:16,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396134089] [2022-12-13 13:49:16,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396134089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:49:16,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:49:16,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:49:16,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818405959] [2022-12-13 13:49:16,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:49:16,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:49:16,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:49:16,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:49:16,098 INFO L87 Difference]: Start difference. First operand 1248 states and 1635 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:49:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:16,338 INFO L93 Difference]: Finished difference Result 1566 states and 2123 transitions. [2022-12-13 13:49:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:49:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 704 [2022-12-13 13:49:16,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:16,345 INFO L225 Difference]: With dead ends: 1566 [2022-12-13 13:49:16,345 INFO L226 Difference]: Without dead ends: 1565 [2022-12-13 13:49:16,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:49:16,346 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:16,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 351 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:49:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-12-13 13:49:16,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1491. [2022-12-13 13:49:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1275 states have (on average 1.275294117647059) internal successors, (1626), 1430 states have internal predecessors, (1626), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-12-13 13:49:16,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2022 transitions. [2022-12-13 13:49:16,475 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2022 transitions. Word has length 704 [2022-12-13 13:49:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:16,476 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2022 transitions. [2022-12-13 13:49:16,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:49:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2022 transitions. [2022-12-13 13:49:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-12-13 13:49:16,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:16,491 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:49:16,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 13:49:16,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:16,692 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:49:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash 599849583, now seen corresponding path program 1 times [2022-12-13 13:49:16,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:16,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020832576] [2022-12-13 13:49:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:17,372 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:49:17,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15182380] [2022-12-13 13:49:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:17,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:17,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:49:17,373 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:49:17,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 13:49:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:49:23,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 14520 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 13:49:23,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:49:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:49:24,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:49:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-12-13 13:49:24,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:24,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020832576] [2022-12-13 13:49:24,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:49:24,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15182380] [2022-12-13 13:49:24,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15182380] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:49:24,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:49:24,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-12-13 13:49:24,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299168921] [2022-12-13 13:49:24,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:49:24,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-13 13:49:24,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:24,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-13 13:49:24,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-12-13 13:49:24,933 INFO L87 Difference]: Start difference. First operand 1491 states and 2022 transitions. Second operand has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-12-13 13:49:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:27,409 INFO L93 Difference]: Finished difference Result 2207 states and 3189 transitions. [2022-12-13 13:49:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-12-13 13:49:27,410 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 705 [2022-12-13 13:49:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:27,416 INFO L225 Difference]: With dead ends: 2207 [2022-12-13 13:49:27,416 INFO L226 Difference]: Without dead ends: 2206 [2022-12-13 13:49:27,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1364 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-12-13 13:49:27,419 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 3136 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 1620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 3915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1620 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:27,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3146 Valid, 1180 Invalid, 3915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1620 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 13:49:27,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-12-13 13:49:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2187. [2022-12-13 13:49:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1731 states have (on average 1.341421143847487) internal successors, (2322), 2090 states have internal predecessors, (2322), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-12-13 13:49:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3150 transitions. [2022-12-13 13:49:27,584 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3150 transitions. Word has length 705 [2022-12-13 13:49:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:27,584 INFO L495 AbstractCegarLoop]: Abstraction has 2187 states and 3150 transitions. [2022-12-13 13:49:27,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-12-13 13:49:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3150 transitions. [2022-12-13 13:49:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2022-12-13 13:49:27,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:27,600 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:49:27,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-12-13 13:49:27,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:27,800 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 13:49:27,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1567185261, now seen corresponding path program 2 times [2022-12-13 13:49:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:27,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616115572] [2022-12-13 13:49:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:28,409 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:49:28,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568280332] [2022-12-13 13:49:28,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:49:28,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:28,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:49:28,410 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:49:28,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 13:49:34,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:49:34,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:49:34,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 14952 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 13:49:34,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:49:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 2817 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:49:35,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:49:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2022-12-13 13:49:37,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:37,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616115572] [2022-12-13 13:49:37,505 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:49:37,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568280332] [2022-12-13 13:49:37,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568280332] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:49:37,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:49:37,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-12-13 13:49:37,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632511874] [2022-12-13 13:49:37,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:49:37,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-12-13 13:49:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:37,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-12-13 13:49:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-12-13 13:49:37,512 INFO L87 Difference]: Start difference. First operand 2187 states and 3150 transitions. Second operand has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-12-13 13:49:44,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:44,984 INFO L93 Difference]: Finished difference Result 3599 states and 5457 transitions. [2022-12-13 13:49:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-12-13 13:49:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 849 [2022-12-13 13:49:44,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:44,994 INFO L225 Difference]: With dead ends: 3599 [2022-12-13 13:49:44,994 INFO L226 Difference]: Without dead ends: 3598 [2022-12-13 13:49:45,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1787 GetRequests, 1604 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-12-13 13:49:45,001 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 6437 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 5235 mSolverCounterSat, 3415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6447 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 8650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3415 IncrementalHoareTripleChecker+Valid, 5235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:45,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6447 Valid, 2150 Invalid, 8650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3415 Valid, 5235 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 13:49:45,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-12-13 13:49:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3579. [2022-12-13 13:49:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 2643 states have (on average 1.40522133938706) internal successors, (3714), 3410 states have internal predecessors, (3714), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-12-13 13:49:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 5406 transitions. [2022-12-13 13:49:45,187 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 5406 transitions. Word has length 849 [2022-12-13 13:49:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:45,188 INFO L495 AbstractCegarLoop]: Abstraction has 3579 states and 5406 transitions. [2022-12-13 13:49:45,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-12-13 13:49:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 5406 transitions. [2022-12-13 13:49:45,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2022-12-13 13:49:45,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:45,202 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:49:45,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 13:49:45,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:45,403 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 13:49:45,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash -356456741, now seen corresponding path program 3 times [2022-12-13 13:49:45,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:45,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693388842] [2022-12-13 13:49:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:46,050 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:49:46,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673010586] [2022-12-13 13:49:46,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:49:46,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:46,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:49:46,051 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:49:46,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 13:49:51,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 13:49:51,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:49:51,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:49:51,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:49:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15074 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 14576 trivial. 0 not checked. [2022-12-13 13:49:51,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:49:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:51,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693388842] [2022-12-13 13:49:51,565 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:49:51,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673010586] [2022-12-13 13:49:51,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673010586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:49:51,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:49:51,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:49:51,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532012192] [2022-12-13 13:49:51,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:49:51,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:49:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:51,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:49:51,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:49:51,567 INFO L87 Difference]: Start difference. First operand 3579 states and 5406 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:49:52,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:52,045 INFO L93 Difference]: Finished difference Result 6455 states and 9893 transitions. [2022-12-13 13:49:52,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:49:52,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1137 [2022-12-13 13:49:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:52,074 INFO L225 Difference]: With dead ends: 6455 [2022-12-13 13:49:52,074 INFO L226 Difference]: Without dead ends: 6454 [2022-12-13 13:49:52,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:49:52,078 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 303 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:52,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 389 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:49:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2022-12-13 13:49:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5990. [2022-12-13 13:49:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 4350 states have (on average 1.453103448275862) internal successors, (6321), 5642 states have internal predecessors, (6321), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-12-13 13:49:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 9243 transitions. [2022-12-13 13:49:52,536 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 9243 transitions. Word has length 1137 [2022-12-13 13:49:52,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:52,537 INFO L495 AbstractCegarLoop]: Abstraction has 5990 states and 9243 transitions. [2022-12-13 13:49:52,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 13:49:52,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 9243 transitions. [2022-12-13 13:49:52,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-12-13 13:49:52,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:52,554 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:49:52,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 13:49:52,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 13:49:52,755 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 13:49:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1181803063, now seen corresponding path program 1 times [2022-12-13 13:49:52,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:52,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412749809] [2022-12-13 13:49:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:52,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:53,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:49:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1180639914] [2022-12-13 13:49:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:53,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:49:53,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:49:53,418 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:49:53,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 13:50:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:50:00,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 15820 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-13 13:50:00,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:50:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 12470 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:50:03,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:50:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 6701 trivial. 0 not checked. [2022-12-13 13:50:08,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:50:08,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412749809] [2022-12-13 13:50:08,723 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:50:08,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180639914] [2022-12-13 13:50:08,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180639914] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:50:08,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:50:08,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-12-13 13:50:08,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954567267] [2022-12-13 13:50:08,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:50:08,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-12-13 13:50:08,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:50:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-12-13 13:50:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-12-13 13:50:08,741 INFO L87 Difference]: Start difference. First operand 5990 states and 9243 transitions. Second operand has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-12-13 13:50:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:50:42,368 INFO L93 Difference]: Finished difference Result 11421 states and 18006 transitions. [2022-12-13 13:50:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-12-13 13:50:42,370 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1139 [2022-12-13 13:50:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:50:42,400 INFO L225 Difference]: With dead ends: 11421 [2022-12-13 13:50:42,400 INFO L226 Difference]: Without dead ends: 11420 [2022-12-13 13:50:42,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2463 GetRequests, 2088 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-12-13 13:50:42,412 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 15398 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 11201 mSolverCounterSat, 8768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15408 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 19969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8768 IncrementalHoareTripleChecker+Valid, 11201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:50:42,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15408 Valid, 3726 Invalid, 19969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8768 Valid, 11201 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-12-13 13:50:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2022-12-13 13:50:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11366. [2022-12-13 13:50:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11366 states, 7998 states have (on average 1.4864966241560391) internal successors, (11889), 10682 states have internal predecessors, (11889), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-12-13 13:50:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11366 states to 11366 states and 17883 transitions. [2022-12-13 13:50:43,154 INFO L78 Accepts]: Start accepts. Automaton has 11366 states and 17883 transitions. Word has length 1139 [2022-12-13 13:50:43,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:50:43,155 INFO L495 AbstractCegarLoop]: Abstraction has 11366 states and 17883 transitions. [2022-12-13 13:50:43,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-12-13 13:50:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 11366 states and 17883 transitions. [2022-12-13 13:50:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2022-12-13 13:50:43,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:50:43,189 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:50:43,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 13:50:43,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 13:50:43,390 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 13:50:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:50:43,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1358634695, now seen corresponding path program 2 times [2022-12-13 13:50:43,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:50:43,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544673632] [2022-12-13 13:50:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:50:43,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:50:44,106 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:50:44,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883696096] [2022-12-13 13:50:44,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:50:44,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:50:44,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:50:44,107 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:50:44,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 13:50:52,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:50:52,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:50:52,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 17548 conjuncts, 191 conjunts are in the unsatisfiable core [2022-12-13 13:50:52,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:51:00,042 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 52550 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:51:00,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:51:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 35066 refuted. 0 times theorem prover too weak. 20045 trivial. 0 not checked. [2022-12-13 13:51:18,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:51:18,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544673632] [2022-12-13 13:51:18,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:51:18,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883696096] [2022-12-13 13:51:18,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883696096] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:51:18,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:51:18,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 191] total 381 [2022-12-13 13:51:18,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863744843] [2022-12-13 13:51:18,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:51:18,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-12-13 13:51:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:51:18,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-12-13 13:51:18,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-12-13 13:51:18,844 INFO L87 Difference]: Start difference. First operand 11366 states and 17883 transitions. Second operand has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-12-13 13:55:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:55:18,586 INFO L93 Difference]: Finished difference Result 22173 states and 35334 transitions. [2022-12-13 13:55:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 572 states. [2022-12-13 13:55:18,587 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) Word has length 1715 [2022-12-13 13:55:18,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:55:18,632 INFO L225 Difference]: With dead ends: 22173 [2022-12-13 13:55:18,632 INFO L226 Difference]: Without dead ends: 22172 [2022-12-13 13:55:18,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3807 GetRequests, 3048 SyntacticMatches, 0 SemanticMatches, 759 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133579 ImplicationChecksByTransitivity, 60.5s TimeCoverageRelationStatistics Valid=181449, Invalid=396911, Unknown=0, NotChecked=0, Total=578360 [2022-12-13 13:55:18,675 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 40942 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 26489 mSolverCounterSat, 24461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40952 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 50950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 24461 IncrementalHoareTripleChecker+Valid, 26489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:55:18,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40952 Valid, 6011 Invalid, 50950 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [24461 Valid, 26489 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2022-12-13 13:55:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2022-12-13 13:55:20,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 22118. [2022-12-13 13:55:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 15294 states have (on average 1.5054923499411534) internal successors, (23025), 20762 states have internal predecessors, (23025), 6064 states have call successors, (6064), 758 states have call predecessors, (6064), 759 states have return successors, (6074), 786 states have call predecessors, (6074), 6064 states have call successors, (6074) [2022-12-13 13:55:20,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 35163 transitions. [2022-12-13 13:55:20,222 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 35163 transitions. Word has length 1715 [2022-12-13 13:55:20,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:55:20,223 INFO L495 AbstractCegarLoop]: Abstraction has 22118 states and 35163 transitions. [2022-12-13 13:55:20,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-12-13 13:55:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 35163 transitions. [2022-12-13 13:55:20,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2868 [2022-12-13 13:55:20,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:55:20,293 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 190, 190, 188, 188, 188, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:55:20,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-12-13 13:55:20,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:55:20,495 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 13:55:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:55:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2036209639, now seen corresponding path program 3 times [2022-12-13 13:55:20,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:55:20,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217231126] [2022-12-13 13:55:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:55:20,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:55:21,221 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:55:21,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152478911] [2022-12-13 13:55:21,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:55:21,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:55:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:55:21,222 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:55:21,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 13:55:27,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 13:55:27,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:55:27,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:55:27,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:55:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 218215 backedges. 2083 proven. 0 refuted. 0 times theorem prover too weak. 216132 trivial. 0 not checked. [2022-12-13 13:55:27,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:55:27,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:55:27,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217231126] [2022-12-13 13:55:27,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:55:27,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152478911] [2022-12-13 13:55:27,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152478911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:55:27,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:55:27,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:55:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555960727] [2022-12-13 13:55:27,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:55:27,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:55:27,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:55:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:55:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:55:27,903 INFO L87 Difference]: Start difference. First operand 22118 states and 35163 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 13:55:31,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:55:31,273 INFO L93 Difference]: Finished difference Result 45073 states and 70897 transitions. [2022-12-13 13:55:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:55:31,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 2867 [2022-12-13 13:55:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:55:31,362 INFO L225 Difference]: With dead ends: 45073 [2022-12-13 13:55:31,362 INFO L226 Difference]: Without dead ends: 45072 [2022-12-13 13:55:31,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2875 GetRequests, 2866 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:55:31,372 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 186 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:55:31,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 401 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:55:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45072 states. [2022-12-13 13:55:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45072 to 36606. [2022-12-13 13:55:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36606 states, 26032 states have (on average 1.5140212046711738) internal successors, (39413), 34119 states have internal predecessors, (39413), 9248 states have call successors, (9248), 1324 states have call predecessors, (9248), 1325 states have return successors, (9258), 1351 states have call predecessors, (9258), 9248 states have call successors, (9258) [2022-12-13 13:55:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36606 states to 36606 states and 57919 transitions. [2022-12-13 13:55:34,279 INFO L78 Accepts]: Start accepts. Automaton has 36606 states and 57919 transitions. Word has length 2867 [2022-12-13 13:55:34,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:55:34,281 INFO L495 AbstractCegarLoop]: Abstraction has 36606 states and 57919 transitions. [2022-12-13 13:55:34,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 13:55:34,281 INFO L276 IsEmpty]: Start isEmpty. Operand 36606 states and 57919 transitions. [2022-12-13 13:55:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2869 [2022-12-13 13:55:34,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:55:34,373 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 189, 189, 189, 189, 189, 189, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:55:34,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-12-13 13:55:34,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:55:34,575 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 13:55:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:55:34,577 INFO L85 PathProgramCache]: Analyzing trace with hash -886169894, now seen corresponding path program 1 times [2022-12-13 13:55:34,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:55:34,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145428158] [2022-12-13 13:55:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:55:34,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:55:35,223 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:55:35,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058627258] [2022-12-13 13:55:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:55:35,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:55:35,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:55:35,224 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:55:35,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34085ad-0484-4ee3-8948-421c532cab7c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-13 13:55:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:55:45,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 21007 conjuncts, 383 conjunts are in the unsatisfiable core [2022-12-13 13:55:45,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:56:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 217646 backedges. 0 proven. 215085 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 13:56:13,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:57:31,035 INFO L134 CoverageAnalysis]: Checked inductivity of 217646 backedges. 0 proven. 144021 refuted. 0 times theorem prover too weak. 73625 trivial. 0 not checked. [2022-12-13 13:57:31,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:31,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145428158] [2022-12-13 13:57:31,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:57:31,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058627258] [2022-12-13 13:57:31,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058627258] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:57:31,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:57:31,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [382, 383] total 765 [2022-12-13 13:57:31,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969898212] [2022-12-13 13:57:31,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:57:31,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2022-12-13 13:57:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2022-12-13 13:57:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2022-12-13 13:57:31,090 INFO L87 Difference]: Start difference. First operand 36606 states and 57919 transitions. Second operand has 766 states, 765 states have (on average 4.43921568627451) internal successors, (3396), 766 states have internal predecessors, (3396), 380 states have call successors, (382), 191 states have call predecessors, (382), 191 states have return successors, (382), 380 states have call predecessors, (382), 380 states have call successors, (382)