./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 47d7aa734a1bf75c79acf2b3acca3677f12d2522fb1fc624c15ccfe9b5a8438a --- 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-dbf71c6-m [2022-10-17 10:23:28,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:23:28,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:23:28,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:23:28,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:23:28,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:23:28,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:23:28,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:23:28,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:23:28,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:23:28,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:23:28,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:23:28,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:23:28,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:23:28,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:23:28,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:23:28,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:23:28,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:23:28,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:23:28,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:23:28,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:23:28,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:23:28,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:23:28,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:23:28,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:23:28,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:23:28,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:23:28,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:23:28,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:23:28,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:23:28,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:23:28,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:23:28,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:23:28,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:23:28,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:23:28,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:23:28,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:23:28,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:23:28,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:23:28,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:23:28,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:23:28,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-10-17 10:23:29,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:23:29,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:23:29,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:23:29,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:23:29,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:23:29,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:23:29,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:23:29,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:23:29,039 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:23:29,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:23:29,040 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:23:29,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:23:29,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:23:29,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:23:29,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:23:29,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:23:29,042 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 10:23:29,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:23:29,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:23:29,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:23:29,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:23:29,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:23:29,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:23:29,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:23:29,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:23:29,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:23:29,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:23:29,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:23:29,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:23:29,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:23:29,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47d7aa734a1bf75c79acf2b3acca3677f12d2522fb1fc624c15ccfe9b5a8438a [2022-10-17 10:23:29,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:23:29,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:23:29,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:23:29,425 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:23:29,426 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:23:29,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-10-17 10:23:29,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/data/832c521e8/b31dc3d98b0043489cef78c35f373a80/FLAG2ae099f8d [2022-10-17 10:23:29,957 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:23:29,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-10-17 10:23:29,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/data/832c521e8/b31dc3d98b0043489cef78c35f373a80/FLAG2ae099f8d [2022-10-17 10:23:30,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/data/832c521e8/b31dc3d98b0043489cef78c35f373a80 [2022-10-17 10:23:30,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:23:30,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:23:30,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:23:30,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:23:30,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:23:30,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aea8e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30, skipping insertion in model container [2022-10-17 10:23:30,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:23:30,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:23:30,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:23:30,633 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:23:30,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:23:30,658 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:23:30,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30 WrapperNode [2022-10-17 10:23:30,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:23:30,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:23:30,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:23:30,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:23:30,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,688 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-10-17 10:23:30,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:23:30,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:23:30,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:23:30,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:23:30,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,707 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:23:30,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:23:30,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:23:30,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:23:30,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (1/1) ... [2022-10-17 10:23:30,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:23:30,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:30,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:23:30,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:23:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:23:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:23:30,872 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:23:30,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:23:30,967 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:23:30,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:23:30,974 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:23:30,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:30 BoogieIcfgContainer [2022-10-17 10:23:30,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:23:30,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:23:30,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:23:30,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:23:30,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:23:30" (1/3) ... [2022-10-17 10:23:30,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53591eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:30, skipping insertion in model container [2022-10-17 10:23:30,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:30" (2/3) ... [2022-10-17 10:23:30,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53591eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:30, skipping insertion in model container [2022-10-17 10:23:30,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:30" (3/3) ... [2022-10-17 10:23:30,986 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-10-17 10:23:31,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:23:31,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-17 10:23:31,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:23:31,067 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=FINITE_AUTOMATA, 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;@213c1c85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:23:31,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-17 10:23:31,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 10:23:31,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:31,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:23:31,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:31,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2022-10-17 10:23:31,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:31,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76608574] [2022-10-17 10:23:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:31,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:31,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76608574] [2022-10-17 10:23:31,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76608574] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:31,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:31,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:23:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337039656] [2022-10-17 10:23:31,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:31,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:23:31,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:31,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:23:31,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,299 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-10-17 10:23:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:31,356 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-10-17 10:23:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:23:31,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-10-17 10:23:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:31,370 INFO L225 Difference]: With dead ends: 41 [2022-10-17 10:23:31,371 INFO L226 Difference]: Without dead ends: 27 [2022-10-17 10:23:31,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,379 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:31,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-17 10:23:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-10-17 10:23:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-10-17 10:23:31,436 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-10-17 10:23:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:31,449 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-10-17 10:23:31,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-10-17 10:23:31,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-10-17 10:23:31,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 10:23:31,451 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:31,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:23:31,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:23:31,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:31,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2022-10-17 10:23:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:31,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289286393] [2022-10-17 10:23:31,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:31,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:31,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:31,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289286393] [2022-10-17 10:23:31,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289286393] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:31,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:31,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:23:31,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938094070] [2022-10-17 10:23:31,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:31,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:23:31,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:31,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:23:31,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,538 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:31,578 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-10-17 10:23:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:23:31,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-17 10:23:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:31,581 INFO L225 Difference]: With dead ends: 41 [2022-10-17 10:23:31,581 INFO L226 Difference]: Without dead ends: 39 [2022-10-17 10:23:31,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,584 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:31,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:31,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-17 10:23:31,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-10-17 10:23:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-10-17 10:23:31,602 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2022-10-17 10:23:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:31,603 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-10-17 10:23:31,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-10-17 10:23:31,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:23:31,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:31,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:23:31,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:23:31,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:31,615 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2022-10-17 10:23:31,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:31,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2969963] [2022-10-17 10:23:31,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:31,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:31,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:31,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2969963] [2022-10-17 10:23:31,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2969963] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:31,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:31,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:23:31,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029988135] [2022-10-17 10:23:31,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:31,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:23:31,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:31,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:23:31,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,697 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:31,740 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2022-10-17 10:23:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:23:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 10:23:31,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:31,743 INFO L225 Difference]: With dead ends: 43 [2022-10-17 10:23:31,744 INFO L226 Difference]: Without dead ends: 42 [2022-10-17 10:23:31,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,746 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:31,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-17 10:23:31,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-10-17 10:23:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.5) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-10-17 10:23:31,772 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 8 [2022-10-17 10:23:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:31,773 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-10-17 10:23:31,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,774 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-10-17 10:23:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:23:31,784 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:31,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:23:31,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:23:31,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:31,786 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2022-10-17 10:23:31,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:31,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891496607] [2022-10-17 10:23:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:31,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:31,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:31,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891496607] [2022-10-17 10:23:31,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891496607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:31,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:31,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:23:31,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203513853] [2022-10-17 10:23:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:31,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:23:31,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:23:31,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,892 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:31,927 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-10-17 10:23:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:23:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-10-17 10:23:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:31,929 INFO L225 Difference]: With dead ends: 40 [2022-10-17 10:23:31,929 INFO L226 Difference]: Without dead ends: 39 [2022-10-17 10:23:31,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:23:31,932 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:31,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-17 10:23:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-17 10:23:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.411764705882353) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-10-17 10:23:31,943 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 9 [2022-10-17 10:23:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:31,943 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-10-17 10:23:31,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-10-17 10:23:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 10:23:31,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:31,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:23:31,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:23:31,946 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -233874170, now seen corresponding path program 1 times [2022-10-17 10:23:31,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:31,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854046224] [2022-10-17 10:23:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:31,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:32,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854046224] [2022-10-17 10:23:32,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854046224] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:32,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839063326] [2022-10-17 10:23:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:32,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:32,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:32,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:32,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:23:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:32,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:23:32,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:32,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:32,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839063326] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:32,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:32,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:23:32,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862169806] [2022-10-17 10:23:32,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:32,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:23:32,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:23:32,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:23:32,380 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:32,533 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2022-10-17 10:23:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:23:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-17 10:23:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:32,536 INFO L225 Difference]: With dead ends: 98 [2022-10-17 10:23:32,541 INFO L226 Difference]: Without dead ends: 96 [2022-10-17 10:23:32,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:23:32,544 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:32,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:23:32,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-17 10:23:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2022-10-17 10:23:32,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 78 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-10-17 10:23:32,578 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 12 [2022-10-17 10:23:32,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:32,579 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-10-17 10:23:32,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:32,581 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-10-17 10:23:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 10:23:32,583 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:32,583 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:23:32,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:32,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:32,785 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1982025395, now seen corresponding path program 1 times [2022-10-17 10:23:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:32,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318975723] [2022-10-17 10:23:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:32,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:32,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:32,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318975723] [2022-10-17 10:23:32,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318975723] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:32,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169623330] [2022-10-17 10:23:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:32,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:32,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:32,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:32,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:23:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:32,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:23:32,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:32,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:33,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169623330] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:33,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:33,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:23:33,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025579665] [2022-10-17 10:23:33,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:33,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:23:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:33,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:23:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:23:33,021 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:33,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:33,073 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2022-10-17 10:23:33,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:23:33,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 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 13 [2022-10-17 10:23:33,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:33,076 INFO L225 Difference]: With dead ends: 135 [2022-10-17 10:23:33,076 INFO L226 Difference]: Without dead ends: 133 [2022-10-17 10:23:33,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:23:33,078 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:33,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-17 10:23:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 99. [2022-10-17 10:23:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 98 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2022-10-17 10:23:33,105 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 13 [2022-10-17 10:23:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:33,106 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2022-10-17 10:23:33,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2022-10-17 10:23:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 10:23:33,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:33,107 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-17 10:23:33,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:33,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-17 10:23:33,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:33,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1414776337, now seen corresponding path program 1 times [2022-10-17 10:23:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:33,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606607289] [2022-10-17 10:23:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:33,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:33,395 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:33,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:33,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606607289] [2022-10-17 10:23:33,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606607289] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:33,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361307041] [2022-10-17 10:23:33,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:33,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:33,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:33,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:33,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:23:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:33,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:23:33,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:33,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:33,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361307041] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:33,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:33,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 10:23:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522576024] [2022-10-17 10:23:33,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:33,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:23:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:33,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:23:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:23:33,526 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:33,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:33,566 INFO L93 Difference]: Finished difference Result 207 states and 268 transitions. [2022-10-17 10:23:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:23:33,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-17 10:23:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:33,569 INFO L225 Difference]: With dead ends: 207 [2022-10-17 10:23:33,569 INFO L226 Difference]: Without dead ends: 206 [2022-10-17 10:23:33,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:23:33,571 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:33,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:33,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-17 10:23:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2022-10-17 10:23:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.24) internal successors, (248), 203 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:33,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 248 transitions. [2022-10-17 10:23:33,602 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 248 transitions. Word has length 14 [2022-10-17 10:23:33,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:33,602 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 248 transitions. [2022-10-17 10:23:33,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:33,603 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 248 transitions. [2022-10-17 10:23:33,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:23:33,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:33,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-10-17 10:23:33,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:33,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:33,825 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:33,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1022063642, now seen corresponding path program 1 times [2022-10-17 10:23:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:33,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224439522] [2022-10-17 10:23:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:33,935 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:33,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:33,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224439522] [2022-10-17 10:23:33,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224439522] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:33,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837891352] [2022-10-17 10:23:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:33,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:33,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:33,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:33,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:23:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:33,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:23:33,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:34,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:34,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837891352] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:34,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:34,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 10:23:34,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343582320] [2022-10-17 10:23:34,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:34,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:23:34,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:34,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:23:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:23:34,124 INFO L87 Difference]: Start difference. First operand 204 states and 248 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:34,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:34,272 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2022-10-17 10:23:34,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:23:34,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-17 10:23:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:34,277 INFO L225 Difference]: With dead ends: 399 [2022-10-17 10:23:34,277 INFO L226 Difference]: Without dead ends: 398 [2022-10-17 10:23:34,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:23:34,280 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:34,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 49 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:23:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-10-17 10:23:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 330. [2022-10-17 10:23:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 326 states have (on average 1.2760736196319018) internal successors, (416), 329 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2022-10-17 10:23:34,323 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 19 [2022-10-17 10:23:34,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:34,323 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2022-10-17 10:23:34,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2022-10-17 10:23:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 10:23:34,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:34,327 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-17 10:23:34,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:34,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:34,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash -957667535, now seen corresponding path program 2 times [2022-10-17 10:23:34,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:34,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501334717] [2022-10-17 10:23:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:34,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:34,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501334717] [2022-10-17 10:23:34,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501334717] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650047675] [2022-10-17 10:23:34,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:23:34,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:34,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:34,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:34,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:23:34,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:23:34,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:34,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:23:34,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:34,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:34,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650047675] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:34,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:34,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-17 10:23:34,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288416032] [2022-10-17 10:23:34,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:34,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:23:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:23:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:23:34,957 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:35,109 INFO L93 Difference]: Finished difference Result 871 states and 1195 transitions. [2022-10-17 10:23:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:23:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 30 [2022-10-17 10:23:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:35,117 INFO L225 Difference]: With dead ends: 871 [2022-10-17 10:23:35,117 INFO L226 Difference]: Without dead ends: 869 [2022-10-17 10:23:35,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:23:35,121 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 111 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:35,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 81 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:23:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-10-17 10:23:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 573. [2022-10-17 10:23:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.2864674868189807) internal successors, (732), 572 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 732 transitions. [2022-10-17 10:23:35,173 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 732 transitions. Word has length 30 [2022-10-17 10:23:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:35,173 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 732 transitions. [2022-10-17 10:23:35,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:35,175 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 732 transitions. [2022-10-17 10:23:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 10:23:35,182 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:35,183 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-10-17 10:23:35,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:35,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:35,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:35,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1195498150, now seen corresponding path program 2 times [2022-10-17 10:23:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:35,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502864152] [2022-10-17 10:23:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:23:35,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:35,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502864152] [2022-10-17 10:23:35,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502864152] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:35,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695814981] [2022-10-17 10:23:35,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:23:35,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:35,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:35,464 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:35,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:23:35,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:23:35,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:35,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:23:35,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:23:35,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:23:35,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695814981] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:35,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:35,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-10-17 10:23:35,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510352418] [2022-10-17 10:23:35,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:35,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:23:35,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:35,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:23:35,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:23:35,642 INFO L87 Difference]: Start difference. First operand 573 states and 732 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:35,679 INFO L93 Difference]: Finished difference Result 573 states and 732 transitions. [2022-10-17 10:23:35,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:23:35,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-17 10:23:35,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:35,687 INFO L225 Difference]: With dead ends: 573 [2022-10-17 10:23:35,687 INFO L226 Difference]: Without dead ends: 572 [2022-10-17 10:23:35,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:23:35,690 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:35,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:23:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-10-17 10:23:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 457. [2022-10-17 10:23:35,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 454 states have (on average 1.1894273127753303) internal successors, (540), 456 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 540 transitions. [2022-10-17 10:23:35,722 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 540 transitions. Word has length 32 [2022-10-17 10:23:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:35,723 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 540 transitions. [2022-10-17 10:23:35,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 540 transitions. [2022-10-17 10:23:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 10:23:35,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:35,727 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-10-17 10:23:35,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-17 10:23:35,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-17 10:23:35,938 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:35,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:35,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1056880102, now seen corresponding path program 2 times [2022-10-17 10:23:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:35,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165847855] [2022-10-17 10:23:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:35,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:36,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:36,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165847855] [2022-10-17 10:23:36,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165847855] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:36,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100456529] [2022-10-17 10:23:36,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:23:36,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:36,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:36,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:36,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 10:23:36,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:23:36,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:36,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:23:36,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:36,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:36,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100456529] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:36,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:36,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-10-17 10:23:36,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103919545] [2022-10-17 10:23:36,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:36,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-17 10:23:36,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:36,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-17 10:23:36,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:23:36,390 INFO L87 Difference]: Start difference. First operand 457 states and 540 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:36,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:36,624 INFO L93 Difference]: Finished difference Result 1649 states and 2020 transitions. [2022-10-17 10:23:36,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-17 10:23:36,624 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 43 [2022-10-17 10:23:36,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:36,635 INFO L225 Difference]: With dead ends: 1649 [2022-10-17 10:23:36,635 INFO L226 Difference]: Without dead ends: 1648 [2022-10-17 10:23:36,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:23:36,639 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:36,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 82 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:23:36,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-10-17 10:23:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 903. [2022-10-17 10:23:36,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 900 states have (on average 1.18) internal successors, (1062), 902 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:36,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1062 transitions. [2022-10-17 10:23:36,722 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1062 transitions. Word has length 43 [2022-10-17 10:23:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:36,722 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1062 transitions. [2022-10-17 10:23:36,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1062 transitions. [2022-10-17 10:23:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:23:36,724 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:36,724 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-17 10:23:36,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:36,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:36,942 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:36,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:36,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1254740665, now seen corresponding path program 3 times [2022-10-17 10:23:36,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:36,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487163197] [2022-10-17 10:23:36,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:36,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:37,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:37,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487163197] [2022-10-17 10:23:37,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487163197] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:37,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105998738] [2022-10-17 10:23:37,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:23:37,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:37,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:37,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:37,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 10:23:37,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-17 10:23:37,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:37,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 10:23:37,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:37,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:37,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105998738] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:37,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:37,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-17 10:23:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513413015] [2022-10-17 10:23:37,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:37,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-17 10:23:37,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-17 10:23:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:23:37,775 INFO L87 Difference]: Start difference. First operand 903 states and 1062 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:38,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:38,182 INFO L93 Difference]: Finished difference Result 4199 states and 5264 transitions. [2022-10-17 10:23:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-17 10:23:38,183 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 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 66 [2022-10-17 10:23:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:38,207 INFO L225 Difference]: With dead ends: 4199 [2022-10-17 10:23:38,207 INFO L226 Difference]: Without dead ends: 4197 [2022-10-17 10:23:38,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:23:38,212 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 167 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:38,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 127 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:23:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-10-17 10:23:38,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 1945. [2022-10-17 10:23:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1942 states have (on average 1.1596292481977344) internal successors, (2252), 1944 states have internal predecessors, (2252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2252 transitions. [2022-10-17 10:23:38,398 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2252 transitions. Word has length 66 [2022-10-17 10:23:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:38,400 INFO L495 AbstractCegarLoop]: Abstraction has 1945 states and 2252 transitions. [2022-10-17 10:23:38,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2252 transitions. [2022-10-17 10:23:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 10:23:38,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:38,404 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-10-17 10:23:38,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:38,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:38,630 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:38,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:38,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968066, now seen corresponding path program 3 times [2022-10-17 10:23:38,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:38,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930216019] [2022-10-17 10:23:38,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:38,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:39,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:39,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930216019] [2022-10-17 10:23:39,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930216019] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:39,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995114056] [2022-10-17 10:23:39,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:23:39,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:39,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:39,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:39,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 10:23:39,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-17 10:23:39,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:39,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-17 10:23:39,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:39,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:39,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995114056] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:39,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:39,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-10-17 10:23:39,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676708591] [2022-10-17 10:23:39,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:39,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-17 10:23:39,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-17 10:23:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-10-17 10:23:39,936 INFO L87 Difference]: Start difference. First operand 1945 states and 2252 transitions. Second operand has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:40,742 INFO L93 Difference]: Finished difference Result 9843 states and 11726 transitions. [2022-10-17 10:23:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-17 10:23:40,742 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 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 91 [2022-10-17 10:23:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:40,800 INFO L225 Difference]: With dead ends: 9843 [2022-10-17 10:23:40,801 INFO L226 Difference]: Without dead ends: 9842 [2022-10-17 10:23:40,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-10-17 10:23:40,812 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 248 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:40,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 164 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:23:40,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9842 states. [2022-10-17 10:23:41,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9842 to 3731. [2022-10-17 10:23:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3728 states have (on average 1.1539699570815452) internal successors, (4302), 3730 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 4302 transitions. [2022-10-17 10:23:41,173 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 4302 transitions. Word has length 91 [2022-10-17 10:23:41,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:41,173 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 4302 transitions. [2022-10-17 10:23:41,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:41,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 4302 transitions. [2022-10-17 10:23:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-17 10:23:41,177 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:41,177 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-10-17 10:23:41,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:41,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:41,401 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:41,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:41,401 INFO L85 PathProgramCache]: Analyzing trace with hash 924663923, now seen corresponding path program 4 times [2022-10-17 10:23:41,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:41,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044555081] [2022-10-17 10:23:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:41,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:42,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:42,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044555081] [2022-10-17 10:23:42,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044555081] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:42,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22245288] [2022-10-17 10:23:42,374 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:23:42,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:42,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:42,376 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:42,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-17 10:23:42,445 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:23:42,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:42,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-17 10:23:42,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:42,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:43,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22245288] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:43,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:43,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-10-17 10:23:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770583482] [2022-10-17 10:23:43,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:43,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-17 10:23:43,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:43,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-17 10:23:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-17 10:23:43,575 INFO L87 Difference]: Start difference. First operand 3731 states and 4302 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:45,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:45,297 INFO L93 Difference]: Finished difference Result 26439 states and 31924 transitions. [2022-10-17 10:23:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-17 10:23:45,298 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 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 138 [2022-10-17 10:23:45,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:45,418 INFO L225 Difference]: With dead ends: 26439 [2022-10-17 10:23:45,418 INFO L226 Difference]: Without dead ends: 26437 [2022-10-17 10:23:45,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-17 10:23:45,442 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 378 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:45,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 248 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:23:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26437 states. [2022-10-17 10:23:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26437 to 7993. [2022-10-17 10:23:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7993 states, 7990 states have (on average 1.1429286608260325) internal successors, (9132), 7992 states have internal predecessors, (9132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7993 states to 7993 states and 9132 transitions. [2022-10-17 10:23:46,340 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 9132 transitions. Word has length 138 [2022-10-17 10:23:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:46,340 INFO L495 AbstractCegarLoop]: Abstraction has 7993 states and 9132 transitions. [2022-10-17 10:23:46,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 9132 transitions. [2022-10-17 10:23:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-17 10:23:46,352 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:46,353 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-10-17 10:23:46,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:23:46,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:46,567 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:46,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1942998190, now seen corresponding path program 4 times [2022-10-17 10:23:46,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:46,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221041290] [2022-10-17 10:23:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:46,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:48,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:48,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221041290] [2022-10-17 10:23:48,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221041290] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:48,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981537553] [2022-10-17 10:23:48,208 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:23:48,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:48,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:48,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:48,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-17 10:23:48,311 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:23:48,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:48,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-17 10:23:48,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:48,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:23:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:50,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981537553] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:23:50,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:23:50,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-10-17 10:23:50,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706204776] [2022-10-17 10:23:50,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:23:50,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-17 10:23:50,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:50,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-17 10:23:50,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-10-17 10:23:50,376 INFO L87 Difference]: Start difference. First operand 7993 states and 9132 transitions. Second operand has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:53,492 INFO L93 Difference]: Finished difference Result 65015 states and 75718 transitions. [2022-10-17 10:23:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-10-17 10:23:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 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 187 [2022-10-17 10:23:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:53,635 INFO L225 Difference]: With dead ends: 65015 [2022-10-17 10:23:53,636 INFO L226 Difference]: Without dead ends: 65014 [2022-10-17 10:23:53,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-10-17 10:23:53,663 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 562 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:53,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 326 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:23:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65014 states. [2022-10-17 10:23:55,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65014 to 15147. [2022-10-17 10:23:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15147 states, 15144 states have (on average 1.1398573692551506) internal successors, (17262), 15146 states have internal predecessors, (17262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:55,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15147 states to 15147 states and 17262 transitions. [2022-10-17 10:23:55,728 INFO L78 Accepts]: Start accepts. Automaton has 15147 states and 17262 transitions. Word has length 187 [2022-10-17 10:23:55,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:55,729 INFO L495 AbstractCegarLoop]: Abstraction has 15147 states and 17262 transitions. [2022-10-17 10:23:55,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:23:55,729 INFO L276 IsEmpty]: Start isEmpty. Operand 15147 states and 17262 transitions. [2022-10-17 10:23:55,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-10-17 10:23:55,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:55,744 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-10-17 10:23:55,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-17 10:23:55,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-17 10:23:55,958 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-17 10:23:55,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:55,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2065071413, now seen corresponding path program 5 times [2022-10-17 10:23:55,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:55,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614171783] [2022-10-17 10:23:55,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:55,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:58,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:58,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614171783] [2022-10-17 10:23:58,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614171783] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:23:58,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345408638] [2022-10-17 10:23:58,506 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-17 10:23:58,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:23:58,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:58,510 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:23:58,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28272478-1712-4038-af56-40dfa1ec351e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-17 10:23:58,701 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-10-17 10:23:58,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:23:58,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-17 10:23:58,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:23:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:59,099 INFO L328 TraceCheckSpWp]: Computing backward predicates...