./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:02:14,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:02:14,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:02:15,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:02:15,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:02:15,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:02:15,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:02:15,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:02:15,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:02:15,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:02:15,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:02:15,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:02:15,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:02:15,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:02:15,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:02:15,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:02:15,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:02:15,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:02:15,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:02:15,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:02:15,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:02:15,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:02:15,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:02:15,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:02:15,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:02:15,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:02:15,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:02:15,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:02:15,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:02:15,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:02:15,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:02:15,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:02:15,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:02:15,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:02:15,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:02:15,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:02:15,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:02:15,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:02:15,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:02:15,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:02:15,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:02:15,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:02:15,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:02:15,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:02:15,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:02:15,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:02:15,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:02:15,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:02:15,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:02:15,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:02:15,116 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:02:15,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:02:15,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:02:15,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:02:15,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:02:15,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:02:15,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:02:15,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:02:15,119 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:02:15,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:02:15,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:02:15,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:02:15,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:02:15,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:02:15,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:02:15,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:02:15,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:02:15,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:02:15,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:02:15,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:02:15,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:02:15,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:02:15,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:02:15,124 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:02:15,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:02:15,125 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2022-11-25 17:02:15,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:02:15,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:02:15,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:02:15,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:02:15,457 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:02:15,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2022-11-25 17:02:18,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:02:18,749 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:02:18,749 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/sv-benchmarks/c/termination-crafted/Benghazi.c [2022-11-25 17:02:18,757 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/data/4e1abfa0e/d00b6422b5064f4dbc91a1e09e933513/FLAG5c111c5c1 [2022-11-25 17:02:18,771 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/data/4e1abfa0e/d00b6422b5064f4dbc91a1e09e933513 [2022-11-25 17:02:18,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:02:18,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:02:18,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:02:18,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:02:18,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:02:18,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c023f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18, skipping insertion in model container [2022-11-25 17:02:18,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:02:18,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:02:18,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:02:18,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:02:18,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:02:18,954 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:02:18,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18 WrapperNode [2022-11-25 17:02:18,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:02:18,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:02:18,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:02:18,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:02:18,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,981 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-25 17:02:18,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:02:18,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:02:18,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:02:18,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:02:18,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:18,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:19,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:19,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:02:19,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:02:19,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:02:19,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:02:19,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (1/1) ... [2022-11-25 17:02:19,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:02:19,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:19,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:02:19,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:02:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:02:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:02:19,182 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:02:19,185 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:02:19,350 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:02:19,356 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:02:19,357 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:02:19,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:02:19 BoogieIcfgContainer [2022-11-25 17:02:19,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:02:19,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:02:19,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:02:19,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:02:19,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:02:18" (1/3) ... [2022-11-25 17:02:19,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e06c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:02:19, skipping insertion in model container [2022-11-25 17:02:19,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:18" (2/3) ... [2022-11-25 17:02:19,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e06c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:02:19, skipping insertion in model container [2022-11-25 17:02:19,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:02:19" (3/3) ... [2022-11-25 17:02:19,372 INFO L112 eAbstractionObserver]: Analyzing ICFG Benghazi.c [2022-11-25 17:02:19,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:02:19,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:02:19,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:02:19,451 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66fad534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:02:19,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 17:02:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 17:02:19,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:19,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 17:02:19,463 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)] === [2022-11-25 17:02:19,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:19,469 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-25 17:02:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:19,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549853805] [2022-11-25 17:02:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:19,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:19,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:19,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549853805] [2022-11-25 17:02:19,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549853805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:19,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:19,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:02:19,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301038563] [2022-11-25 17:02:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:19,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:02:19,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:02:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:02:19,741 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:19,823 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2022-11-25 17:02:19,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:02:19,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-11-25 17:02:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:19,837 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:02:19,837 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 17:02:19,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:02:19,848 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:19,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 40 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:19,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 17:02:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2022-11-25 17:02:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-25 17:02:19,895 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-25 17:02:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:19,896 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-25 17:02:19,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-25 17:02:19,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:02:19,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:19,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:02:19,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:02:19,898 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)] === [2022-11-25 17:02:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:19,899 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-25 17:02:19,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:19,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855777530] [2022-11-25 17:02:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:19,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:19,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:19,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855777530] [2022-11-25 17:02:19,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855777530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:19,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:19,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:02:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570341271] [2022-11-25 17:02:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:19,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:02:19,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:02:19,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:02:19,949 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:19,970 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 17:02:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:02:19,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 17:02:19,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:19,972 INFO L225 Difference]: With dead ends: 19 [2022-11-25 17:02:19,972 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 17:02:19,973 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 [2022-11-25 17:02:19,975 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:19,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 17:02:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 17:02:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-25 17:02:19,981 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2022-11-25 17:02:19,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:19,981 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-25 17:02:19,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-25 17:02:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 17:02:19,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:19,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:02:19,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:02:19,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-11-25 17:02:19,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:19,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224842578] [2022-11-25 17:02:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:19,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:20,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224842578] [2022-11-25 17:02:20,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224842578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:20,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:20,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:02:20,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817729571] [2022-11-25 17:02:20,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:20,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:02:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:20,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:02:20,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:02:20,035 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. 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) [2022-11-25 17:02:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:20,058 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-25 17:02:20,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:02:20,059 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 [2022-11-25 17:02:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:20,060 INFO L225 Difference]: With dead ends: 25 [2022-11-25 17:02:20,060 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 17:02:20,060 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 [2022-11-25 17:02:20,062 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:20,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:20,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 17:02:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2022-11-25 17:02:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-25 17:02:20,069 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2022-11-25 17:02:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:20,070 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-25 17:02:20,070 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) [2022-11-25 17:02:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-25 17:02:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:02:20,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:20,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:20,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:02:20,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-11-25 17:02:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:20,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668836579] [2022-11-25 17:02:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:20,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668836579] [2022-11-25 17:02:20,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668836579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:20,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:20,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:02:20,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138836951] [2022-11-25 17:02:20,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:20,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:02:20,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:02:20,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:02:20,123 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:20,143 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-25 17:02:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:02:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 17:02:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:20,145 INFO L225 Difference]: With dead ends: 25 [2022-11-25 17:02:20,145 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 17:02:20,146 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 [2022-11-25 17:02:20,147 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 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 [2022-11-25 17:02:20,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:20,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 17:02:20,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-11-25 17:02:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-25 17:02:20,155 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2022-11-25 17:02:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:20,155 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-25 17:02:20,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-25 17:02:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:02:20,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:20,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:20,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:02:20,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2022-11-25 17:02:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:20,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518430551] [2022-11-25 17:02:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:20,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:20,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518430551] [2022-11-25 17:02:20,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518430551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:20,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:20,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:02:20,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050995847] [2022-11-25 17:02:20,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:20,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:02:20,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:20,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:02:20,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:02:20,228 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:20,282 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-25 17:02:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:02:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 17:02:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:20,284 INFO L225 Difference]: With dead ends: 28 [2022-11-25 17:02:20,285 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 17:02:20,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:02:20,287 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:20,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:20,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 17:02:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-11-25 17:02:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-25 17:02:20,295 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2022-11-25 17:02:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:20,296 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-25 17:02:20,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-25 17:02:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:02:20,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:20,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:20,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:02:20,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:20,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:20,299 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2022-11-25 17:02:20,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:20,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914920912] [2022-11-25 17:02:20,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:20,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914920912] [2022-11-25 17:02:20,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914920912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:20,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:20,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:02:20,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719123432] [2022-11-25 17:02:20,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:20,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:02:20,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:20,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:02:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:02:20,368 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-25 17:02:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:20,437 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-11-25 17:02:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:02:20,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-11-25 17:02:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:20,438 INFO L225 Difference]: With dead ends: 28 [2022-11-25 17:02:20,438 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 17:02:20,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:02:20,440 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:20,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 29 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:02:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 17:02:20,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2022-11-25 17:02:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 21 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) [2022-11-25 17:02:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-11-25 17:02:20,447 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2022-11-25 17:02:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:20,447 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-11-25 17:02:20,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-25 17:02:20,448 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-11-25 17:02:20,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:02:20,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:20,449 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:20,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:02:20,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:20,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:20,457 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2022-11-25 17:02:20,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:20,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772136711] [2022-11-25 17:02:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:20,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:20,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772136711] [2022-11-25 17:02:20,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772136711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:20,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542209285] [2022-11-25 17:02:20,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:20,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:20,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:20,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:20,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:02:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:20,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:02:20,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:20,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542209285] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:20,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:20,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-25 17:02:20,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873189736] [2022-11-25 17:02:20,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:20,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:02:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:02:20,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:02:20,894 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:21,143 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-11-25 17:02:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:02:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 17:02:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:21,145 INFO L225 Difference]: With dead ends: 30 [2022-11-25 17:02:21,145 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 17:02:21,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:02:21,153 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 45 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:21,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 24 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:02:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 17:02:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2022-11-25 17:02:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-25 17:02:21,170 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2022-11-25 17:02:21,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:21,171 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-25 17:02:21,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-25 17:02:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:02:21,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:21,172 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:21,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:21,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:02:21,385 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:21,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash -637002594, now seen corresponding path program 1 times [2022-11-25 17:02:21,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:21,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743422872] [2022-11-25 17:02:21,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:21,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:21,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743422872] [2022-11-25 17:02:21,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743422872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:21,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482890108] [2022-11-25 17:02:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:21,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:21,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:21,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:21,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:02:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:21,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:02:21,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:21,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:21,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:21,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482890108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:21,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:21,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-25 17:02:21,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818383842] [2022-11-25 17:02:21,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:21,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:02:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:02:21,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:02:21,702 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:21,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:21,814 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-11-25 17:02:21,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:02:21,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-25 17:02:21,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:21,815 INFO L225 Difference]: With dead ends: 29 [2022-11-25 17:02:21,815 INFO L226 Difference]: Without dead ends: 28 [2022-11-25 17:02:21,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:02:21,821 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:02:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-25 17:02:21,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-25 17:02:21,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 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) [2022-11-25 17:02:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-25 17:02:21,826 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2022-11-25 17:02:21,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:21,827 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-25 17:02:21,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:21,827 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-25 17:02:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:02:21,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:21,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:21,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:22,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:22,043 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:22,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:22,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1727756113, now seen corresponding path program 1 times [2022-11-25 17:02:22,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:22,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428622543] [2022-11-25 17:02:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:22,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:22,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:22,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428622543] [2022-11-25 17:02:22,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428622543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:22,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:22,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:02:22,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837147066] [2022-11-25 17:02:22,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:22,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:02:22,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:22,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:02:22,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:02:22,109 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:22,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:22,143 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-11-25 17:02:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:02:22,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 [2022-11-25 17:02:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:22,148 INFO L225 Difference]: With dead ends: 24 [2022-11-25 17:02:22,148 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 17:02:22,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:02:22,153 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:22,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:22,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 17:02:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-25 17:02:22,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-11-25 17:02:22,171 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 13 [2022-11-25 17:02:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:22,172 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-11-25 17:02:22,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-11-25 17:02:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:02:22,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:22,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:22,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:02:22,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:22,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:22,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2022-11-25 17:02:22,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:22,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190988195] [2022-11-25 17:02:22,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:22,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:22,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:22,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190988195] [2022-11-25 17:02:22,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190988195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:22,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604142703] [2022-11-25 17:02:22,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:22,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:22,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:22,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:22,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:02:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:22,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:02:22,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:22,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:22,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:22,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604142703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:22,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:22,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 17:02:22,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144145900] [2022-11-25 17:02:22,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:22,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:22,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:22,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:22,488 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:22,650 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-11-25 17:02:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:02:22,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 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 [2022-11-25 17:02:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:22,655 INFO L225 Difference]: With dead ends: 44 [2022-11-25 17:02:22,655 INFO L226 Difference]: Without dead ends: 42 [2022-11-25 17:02:22,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:02:22,656 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:22,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 26 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:02:22,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-25 17:02:22,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2022-11-25 17:02:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-25 17:02:22,677 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 14 [2022-11-25 17:02:22,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:22,678 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-25 17:02:22,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-25 17:02:22,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:02:22,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:22,679 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 17:02:22,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:22,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:22,895 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:22,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1778717389, now seen corresponding path program 1 times [2022-11-25 17:02:22,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:22,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989434744] [2022-11-25 17:02:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:22,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:22,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:22,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989434744] [2022-11-25 17:02:22,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989434744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:22,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895568330] [2022-11-25 17:02:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:22,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:22,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:22,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:22,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:02:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:22,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:02:23,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:23,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:23,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895568330] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:23,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:23,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 17:02:23,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202599565] [2022-11-25 17:02:23,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:23,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:23,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:23,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:23,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:23,084 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 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) [2022-11-25 17:02:23,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:23,211 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-25 17:02:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:02:23,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 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) Word has length 15 [2022-11-25 17:02:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:23,212 INFO L225 Difference]: With dead ends: 49 [2022-11-25 17:02:23,212 INFO L226 Difference]: Without dead ends: 48 [2022-11-25 17:02:23,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:02:23,213 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 37 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:23,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 16 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:02:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-25 17:02:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2022-11-25 17:02:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-11-25 17:02:23,219 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 15 [2022-11-25 17:02:23,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:23,219 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-11-25 17:02:23,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 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) [2022-11-25 17:02:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-11-25 17:02:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:02:23,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:23,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 17:02:23,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:02:23,428 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:23,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash 396612265, now seen corresponding path program 2 times [2022-11-25 17:02:23,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:23,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448135054] [2022-11-25 17:02:23,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:23,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:23,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448135054] [2022-11-25 17:02:23,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448135054] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:23,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144396352] [2022-11-25 17:02:23,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:02:23,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:23,571 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:23,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:02:23,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:02:23,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:02:23,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 17:02:23,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:23,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:23,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144396352] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:23,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:23,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-11-25 17:02:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139670333] [2022-11-25 17:02:23,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:23,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 17:02:23,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:23,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 17:02:23,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:02:23,999 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:24,113 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-11-25 17:02:24,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:02:24,114 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 17:02:24,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:24,114 INFO L225 Difference]: With dead ends: 38 [2022-11-25 17:02:24,115 INFO L226 Difference]: Without dead ends: 37 [2022-11-25 17:02:24,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:02:24,116 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 56 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:24,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 11 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:02:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-25 17:02:24,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-25 17:02:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-11-25 17:02:24,122 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 19 [2022-11-25 17:02:24,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:24,122 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-11-25 17:02:24,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:24,123 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-11-25 17:02:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 17:02:24,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:24,123 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2022-11-25 17:02:24,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:24,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:02:24,329 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:24,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1970858238, now seen corresponding path program 1 times [2022-11-25 17:02:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:24,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607985105] [2022-11-25 17:02:24,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:24,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:24,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607985105] [2022-11-25 17:02:24,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607985105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:24,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177096737] [2022-11-25 17:02:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:24,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:24,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:24,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:24,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:02:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:24,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:02:24,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:24,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:24,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177096737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:24,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:24,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-25 17:02:24,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976077056] [2022-11-25 17:02:24,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:24,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:02:24,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:24,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:02:24,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:02:24,628 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:24,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:24,896 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2022-11-25 17:02:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:02:24,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 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 [2022-11-25 17:02:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:24,899 INFO L225 Difference]: With dead ends: 70 [2022-11-25 17:02:24,900 INFO L226 Difference]: Without dead ends: 68 [2022-11-25 17:02:24,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2022-11-25 17:02:24,901 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 86 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:24,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 39 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:02:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-25 17:02:24,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-25 17:02:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.0461538461538462) internal successors, (68), 66 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:24,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2022-11-25 17:02:24,919 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 30 [2022-11-25 17:02:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2022-11-25 17:02:24,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2022-11-25 17:02:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 17:02:24,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:24,923 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 1, 1, 1] [2022-11-25 17:02:24,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:25,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 17:02:25,129 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:25,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:25,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1935918112, now seen corresponding path program 2 times [2022-11-25 17:02:25,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:25,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248252064] [2022-11-25 17:02:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:25,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:25,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:25,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248252064] [2022-11-25 17:02:25,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248252064] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:25,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136472623] [2022-11-25 17:02:25,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:02:25,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:25,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:25,351 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:25,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:02:25,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:02:25,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:02:25,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 17:02:25,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:25,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:25,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136472623] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:25,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:25,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-25 17:02:25,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078766206] [2022-11-25 17:02:25,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:25,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 17:02:25,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:25,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 17:02:25,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-11-25 17:02:25,828 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:26,486 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2022-11-25 17:02:26,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 17:02:26,487 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-25 17:02:26,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:26,488 INFO L225 Difference]: With dead ends: 123 [2022-11-25 17:02:26,488 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 17:02:26,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=750, Invalid=1700, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 17:02:26,490 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 231 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:26,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 48 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:02:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 17:02:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-25 17:02:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 1.0168067226890756) internal successors, (121), 120 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2022-11-25 17:02:26,514 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 56 [2022-11-25 17:02:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:26,516 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2022-11-25 17:02:26,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2022-11-25 17:02:26,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 17:02:26,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:26,525 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 1, 1, 1] [2022-11-25 17:02:26,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:26,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 17:02:26,732 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:26,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:26,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1374949570, now seen corresponding path program 2 times [2022-11-25 17:02:26,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:26,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712238872] [2022-11-25 17:02:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:26,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:27,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:27,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712238872] [2022-11-25 17:02:27,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712238872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:27,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56146988] [2022-11-25 17:02:27,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:02:27,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:27,643 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:27,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:02:27,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:02:27,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:02:27,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 17:02:27,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:27,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:28,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56146988] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:28,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:28,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-11-25 17:02:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572619198] [2022-11-25 17:02:28,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:28,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 17:02:28,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:28,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 17:02:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1993, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 17:02:28,887 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 50 states, 49 states have (on average 4.63265306122449) internal successors, (227), 50 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:30,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:30,805 INFO L93 Difference]: Finished difference Result 238 states and 268 transitions. [2022-11-25 17:02:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-25 17:02:30,806 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.63265306122449) internal successors, (227), 50 states have internal predecessors, (227), 0 states have call successors, (0), 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 114 [2022-11-25 17:02:30,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:30,807 INFO L225 Difference]: With dead ends: 238 [2022-11-25 17:02:30,807 INFO L226 Difference]: Without dead ends: 236 [2022-11-25 17:02:30,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2842, Invalid=6664, Unknown=0, NotChecked=0, Total=9506 [2022-11-25 17:02:30,813 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 570 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:30,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 83 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:02:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-25 17:02:30,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 235. [2022-11-25 17:02:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 233 states have (on average 1.0128755364806867) internal successors, (236), 234 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:30,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 236 transitions. [2022-11-25 17:02:30,849 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 236 transitions. Word has length 114 [2022-11-25 17:02:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:30,850 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 236 transitions. [2022-11-25 17:02:30,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.63265306122449) internal successors, (227), 50 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 236 transitions. [2022-11-25 17:02:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-25 17:02:30,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:30,861 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 1, 1, 1] [2022-11-25 17:02:30,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:31,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 17:02:31,067 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:31,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:31,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1009807200, now seen corresponding path program 3 times [2022-11-25 17:02:31,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:31,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375831831] [2022-11-25 17:02:31,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:31,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 3410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:33,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:33,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375831831] [2022-11-25 17:02:33,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375831831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:33,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396302395] [2022-11-25 17:02:33,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:02:33,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:33,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:33,527 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:33,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:02:33,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-25 17:02:33,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:02:33,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 17:02:33,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 1156 proven. 129 refuted. 0 times theorem prover too weak. 2125 trivial. 0 not checked. [2022-11-25 17:02:34,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 1156 proven. 129 refuted. 0 times theorem prover too weak. 2125 trivial. 0 not checked. [2022-11-25 17:02:35,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396302395] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:35,973 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:35,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 18, 18] total 82 [2022-11-25 17:02:35,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336492326] [2022-11-25 17:02:35,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:35,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-11-25 17:02:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:35,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-11-25 17:02:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=709, Invalid=6097, Unknown=0, NotChecked=0, Total=6806 [2022-11-25 17:02:35,981 INFO L87 Difference]: Start difference. First operand 235 states and 236 transitions. Second operand has 83 states, 82 states have (on average 3.926829268292683) internal successors, (322), 83 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:55,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:55,268 INFO L93 Difference]: Finished difference Result 235 states and 236 transitions. [2022-11-25 17:02:55,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-11-25 17:02:55,269 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 3.926829268292683) internal successors, (322), 83 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2022-11-25 17:02:55,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:55,270 INFO L225 Difference]: With dead ends: 235 [2022-11-25 17:02:55,270 INFO L226 Difference]: Without dead ends: 234 [2022-11-25 17:02:55,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11323 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=9808, Invalid=36632, Unknown=0, NotChecked=0, Total=46440 [2022-11-25 17:02:55,280 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1895 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:55,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 30 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 17:02:55,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-25 17:02:55,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-25 17:02:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.0042918454935623) internal successors, (234), 233 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2022-11-25 17:02:55,325 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 224 [2022-11-25 17:02:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:55,326 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2022-11-25 17:02:55,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 3.926829268292683) internal successors, (322), 83 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2022-11-25 17:02:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-25 17:02:55,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:55,331 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 32, 1, 1, 1] [2022-11-25 17:02:55,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:55,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 17:02:55,534 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:02:55,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:55,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1116249715, now seen corresponding path program 3 times [2022-11-25 17:02:55,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:55,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113397123] [2022-11-25 17:02:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:55,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:57,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3696 backedges. 0 proven. 3696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:57,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:57,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113397123] [2022-11-25 17:02:57,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113397123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:57,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427532229] [2022-11-25 17:02:57,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:02:57,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:57,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:57,993 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:58,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:02:58,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-25 17:02:58,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:02:58,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 17:02:58,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3696 backedges. 1596 proven. 306 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-11-25 17:02:59,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:03:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3696 backedges. 1596 proven. 306 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-11-25 17:03:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427532229] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:03:01,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:03:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 26, 26] total 101 [2022-11-25 17:03:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091551447] [2022-11-25 17:03:01,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:03:01,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-25 17:03:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-25 17:03:01,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=881, Invalid=9421, Unknown=0, NotChecked=0, Total=10302 [2022-11-25 17:03:01,748 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand has 102 states, 101 states have (on average 3.772277227722772) internal successors, (381), 102 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:29,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:29,512 INFO L93 Difference]: Finished difference Result 246 states and 247 transitions. [2022-11-25 17:03:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-11-25 17:03:29,513 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 3.772277227722772) internal successors, (381), 102 states have internal predecessors, (381), 0 states have call successors, (0), 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 233 [2022-11-25 17:03:29,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:29,514 INFO L225 Difference]: With dead ends: 246 [2022-11-25 17:03:29,514 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:03:29,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13173 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=12319, Invalid=45521, Unknown=0, NotChecked=0, Total=57840 [2022-11-25 17:03:29,520 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3265 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:29,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3265 Valid, 38 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 17:03:29,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:03:29,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:03:29,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:29,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:03:29,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2022-11-25 17:03:29,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:29,522 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:03:29,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 3.772277227722772) internal successors, (381), 102 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:29,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:03:29,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:03:29,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 17:03:29,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 17:03:29,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 17:03:29,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 17:03:29,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 17:03:29,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 17:03:29,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:29,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 17:03:29,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:03:31,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 17:03:31,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:03:31,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-25 17:03:31,317 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:03:31,317 INFO L902 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: true [2022-11-25 17:03:31,317 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-25 17:03:31,317 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-25 17:03:31,317 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse8 (+ |ULTIMATE.start_main_~d2~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (<= 73 |ULTIMATE.start_main_~d1old~0#1|)) (.cse1 (<= 75 |ULTIMATE.start_main_~d1~0#1|)) (.cse7 (<= |ULTIMATE.start_main_~d2~0#1| 74)) (.cse4 (<= 1 .cse8)) (.cse5 (<= 74 |ULTIMATE.start_main_~d2~0#1|)) (.cse6 (<= .cse8 2147483648))) (or (let ((.cse3 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (.cse2 (* 3 |ULTIMATE.start_main_~x~0#1|))) (and .cse0 (< |ULTIMATE.start_main_~d2~0#1| 2147483648) .cse1 (<= |ULTIMATE.start_main_~d1~0#1| 2147483645) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483645) (<= (+ (* |ULTIMATE.start_main_~d1old~0#1| 4) .cse2) 8589934572) (<= .cse3 2147483647) (<= 0 .cse3) (<= |ULTIMATE.start_main_~x~0#1| 2147483499) .cse4 (<= (+ (* |ULTIMATE.start_main_~d2~0#1| 4) .cse2) 8589934576) .cse5 .cse6)) (and (<= |ULTIMATE.start_main_~d1~0#1| 73) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~x~0#1| (+ 2147483574 |ULTIMATE.start_main_~d1~0#1|)) .cse7 .cse5) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~d1old~0#1| 73) (<= |ULTIMATE.start_main_~d1~0#1| 75) .cse7 .cse4 .cse5 .cse6)))) [2022-11-25 17:03:31,318 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2022-11-25 17:03:31,321 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:31,323 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:03:31,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:03:31 BoogieIcfgContainer [2022-11-25 17:03:31,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:03:31,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:03:31,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:03:31,355 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:03:31,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:02:19" (3/4) ... [2022-11-25 17:03:31,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:03:31,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 17:03:31,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:03:31,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:03:31,418 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((73 <= d1\old && d2 < 2147483648) && 75 <= d1) && d1 <= 2147483645) && d1\old <= 2147483645) && d1\old * 4 + 3 * x <= 8589934572) && x + d1\old <= 2147483647) && 0 <= x + d1\old) && x <= 2147483499) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576) && 74 <= d2) && d2 + x <= 2147483648) || ((((d1 <= 73 && 73 <= d1) && x <= 2147483574 + d1) && d2 <= 74) && 74 <= d2)) || (((((((73 <= d1\old && 75 <= d1) && d1\old <= 73) && d1 <= 75) && d2 <= 74) && 1 <= d2 + x) && 74 <= d2) && d2 + x <= 2147483648) [2022-11-25 17:03:31,431 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:03:31,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:03:31,433 INFO L158 Benchmark]: Toolchain (without parser) took 72656.78ms. Allocated memory was 125.8MB in the beginning and 383.8MB in the end (delta: 257.9MB). Free memory was 72.4MB in the beginning and 339.2MB in the end (delta: -266.8MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. [2022-11-25 17:03:31,433 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:03:31,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.13ms. Allocated memory is still 125.8MB. Free memory was 72.2MB in the beginning and 63.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:03:31,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.36ms. Allocated memory is still 125.8MB. Free memory was 63.1MB in the beginning and 61.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:03:31,434 INFO L158 Benchmark]: Boogie Preprocessor took 19.03ms. Allocated memory is still 125.8MB. Free memory was 61.6MB in the beginning and 60.8MB in the end (delta: 824.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:03:31,435 INFO L158 Benchmark]: RCFGBuilder took 356.87ms. Allocated memory is still 125.8MB. Free memory was 60.6MB in the beginning and 95.5MB in the end (delta: -34.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-11-25 17:03:31,435 INFO L158 Benchmark]: TraceAbstraction took 71992.50ms. Allocated memory was 125.8MB in the beginning and 383.8MB in the end (delta: 257.9MB). Free memory was 94.7MB in the beginning and 249.1MB in the end (delta: -154.3MB). Peak memory consumption was 237.1MB. Max. memory is 16.1GB. [2022-11-25 17:03:31,436 INFO L158 Benchmark]: Witness Printer took 77.54ms. Allocated memory is still 383.8MB. Free memory was 248.0MB in the beginning and 339.2MB in the end (delta: -91.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-25 17:03:31,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.13ms. Allocated memory is still 125.8MB. Free memory was 72.2MB in the beginning and 63.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.36ms. Allocated memory is still 125.8MB. Free memory was 63.1MB in the beginning and 61.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.03ms. Allocated memory is still 125.8MB. Free memory was 61.6MB in the beginning and 60.8MB in the end (delta: 824.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.87ms. Allocated memory is still 125.8MB. Free memory was 60.6MB in the beginning and 95.5MB in the end (delta: -34.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 71992.50ms. Allocated memory was 125.8MB in the beginning and 383.8MB in the end (delta: 257.9MB). Free memory was 94.7MB in the beginning and 249.1MB in the end (delta: -154.3MB). Peak memory consumption was 237.1MB. Max. memory is 16.1GB. * Witness Printer took 77.54ms. Allocated memory is still 383.8MB. Free memory was 248.0MB in the beginning and 339.2MB in the end (delta: -91.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 71.9s, OverallIterations: 17, TraceHistogramMax: 33, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 51.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6292 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6292 mSDsluCounter, 531 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 967 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2700 IncrementalHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 967 mSolverCounterUnsat, 144 mSDtfsCounter, 2700 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2013 GetRequests, 1300 SyntacticMatches, 1 SemanticMatches, 712 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27420 ImplicationChecksByTransitivity, 54.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=15, InterpolantAutomatonStates: 441, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 53 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 38 NumberOfFragments, 109 HoareAnnotationTreeSize, 2 FomulaSimplifications, 1070 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 2 FomulaSimplificationsInter, 6568 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 1508 NumberOfCodeBlocks, 1193 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2199 ConstructedInterpolants, 0 QuantifiedInterpolants, 6981 SizeOfPredicates, 96 NumberOfNonLiveVariables, 911 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 37 InterpolantComputations, 7 PerfectInterpolantSequences, 13349/24601 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((((((((73 <= d1\old && d2 < 2147483648) && 75 <= d1) && d1 <= 2147483645) && d1\old <= 2147483645) && d1\old * 4 + 3 * x <= 8589934572) && x + d1\old <= 2147483647) && 0 <= x + d1\old) && x <= 2147483499) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576) && 74 <= d2) && d2 + x <= 2147483648) || ((((d1 <= 73 && 73 <= d1) && x <= 2147483574 + d1) && d2 <= 74) && 74 <= d2)) || (((((((73 <= d1\old && 75 <= d1) && d1\old <= 73) && d1 <= 75) && d2 <= 74) && 1 <= d2 + x) && 74 <= d2) && d2 + x <= 2147483648) RESULT: Ultimate proved your program to be correct! [2022-11-25 17:03:31,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad23cbe-0521-4857-8775-5d6f0d97e2c4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE